Abstract：To enhance the driving system reliable. This article control the motor by three-phase fully-controlled bridge H_PWM_ON_L_ON. Use the principle of back electromotive force zero-crossing testing, the relationship between the floating phase terminal end voltage and midpoint voltage in DC link of three phases’ back electromotive force was analyzed. Choice power MOSFET to be the switching devices. Use three IR2101 chip to drive six composite power for realizing the change of phase. The cruising time of unmanned aircraft that using this driving system extended 20% than the usual H-bridge system. This system can even running stable at -25 ℃. The response rate of this system enhance 10%.

Abstract：A target tracking method based on CamShift fused local feature matching has been introduced aimed at the problem caused by the single tracking characteristics of CamShift, which make the tracking algorithm be sensitive to similar target of color and shelter. The experimental results show that BRISK show the good performance in feature detection and feature description. The algorithm of CamShift fused local feature matching improves the sensitivity of interference of color similar target and shelter. The improved algorithm makes the target tracking more accurate by the common location of color information and local characteristics.

Abstract：The rate of wideband spread spectrum signal is up to 150Mcps, which cause the traditional capture method can not work under this rate. A fast algorithm based on parallel signal processing technique is proposed to solve this problem. Local carrier and PN code is generated by means of parallel NCO, which can achieve 600 MHz equivalent sample rate. Inside PN code achieve phase alignment by sliding code phase. Out side PN code achieve phase alignment by match filter. The proposed algorithm is feasible and can achieve fast acquisition of wideband spread spectrum signal.

Abstract：Required by real-time motion carrier attitude measurement, this research uses two GPS modules to receive satellite carrier phase measurements synchronously,uses GPS carrier phase differential technique to search two-dimensional traversal satellite data, and builds a ambiguity function for quick search. Then the research calculates baseline vector length between two antenna central points based on the least squares method,and quickly compute relative reference angles of heading, rolling and pitch.The experiment proves that under the baseline of 3 m, the heading accuracy has reached 1.5 mil, and directional time generally takes about 1 minute while under 6 m baseline, heading accuracy has reached 1 mil, and directional time only takes 1 minute.

Abstract：In order to promote UAV′s capacity of automatic tasks, to reduce the actual test investment and the risk of development, to simulate flying and task execution process and shorten the development cycle. Based on a certain type of UAV flight characteristics, a set of interactive UAV path planning and visual simulation system that is an important part of UAV simulation system was developed to solve the complex flight environment modeling for path planning and to establish big range of 3D real scene. The experimental simulation results show that the path planning module of system can be rapid and accurate planning out the optimal path according to the requirement of different environment, and the visual simulation module can intuitive show real 3D scene and UAV′s flight characteristics. The system can meets the requirements of path planning of UAV flight task and visual simulation validation.

Abstract：Based on the present situation of military IP core standards system，considering the applicability of existing standards for military IP core，and according to the requirement and characteristic of military application，the key common technologies of military IP core are studied and analyzed, such as deliveries demanding，quality evaluation，test methodology，reliability test and inspection，which can provide suggestion and technical guidance for establishing and consummating the military IP core standards system．

Abstract：This article combining the IEEE 1149 TAP controller concept and IEEE 1500 wrapper concept to design a test controller that based on IEEE 1500 standard and compatible with IEEE 1149 test standard .It also has the function that parallel configured the general register in different clock domain to improve the test efficiency. The results of verdi simulation diagram show that the test structure to achieve the desired.

Abstract：To deal with the shortcomings of denoising methods for nano devices shot noise, this paper studies the variance characteristics of shot noise signal in different states and proposes an improved algorithm for empirical mode decomposition(EMD). The algorithm can adaptively select the IMF layer which need to be processed, according to the relationship between the maximum variance of IMFs with the corresponding layers. At the same time, it is integrated with the classical average algorithm, then the shot noise signal is separated from the noise effectively. The results show that under different degrees(≥-3.92 dB) low-frequence noise environment, with traditional rigid EMD de-noising method comparison, it improves the signal to noise ratio 5.4 dB～7.0 dB, the mean square error is reduced by more than 36%, this method effectively removes low-frequency noise,and increases the effectiveness of the shot noise detection.

Abstract：First of all, giving a brief introduction to the main function of RF digital HF transmitters as well as the basic principles of the AD9957 chip, then proposing a scheme that realize quadrature digital up convert module and the digital to analog conversion module based on AD9957 chip in the RF digital HF transmitters, having a simulation and analysis about the application part of AD9957 in the HF transmitter by System View software, finally presenting a complete simulation circuit diagram of the baseband processing, quadrature digital up convert and digital to analog conversion.

Abstract：The algorithm is adopted and implemented on FPGA,whose name is Normalized min-sum algorithm, multiplication of the algorithm could be converted into shift and addition operation,through selecting the suitable normalized factor.The optimal decoding iteration number could be obtained, through simulating the algorithm in Additive White Gaussian Noise channel.Besides, the quantization bits could be determined through simulating and resource of Xilinx XC7VX485T. Then a DSC decoder which is new and high-speed and partly parallel could be designed based on the algorithm and three parameters.The decoder extremely realizes the balance of decoding efficiency,decoding complexity and the utilization of FPGA resource.And the decoder has been realized on Xilinx XC7VX485T chip,whose throughput rate could up to 197 Mb/s.

Abstract：A compensation method about on-chip CMOS oscillator was proposed to solve frequency deviation problem across the temperature and process variation. A reference voltage generated a NTAT current on resistor with positive temperature coefficient, which was compensated with PTAT current from band gap reference cell. By temperature compensation, the current with low temperature coefficient was used to charge capacity. Digital trimming capacitor circuit was designed to reduce the output frequency drift due to process variation. Simulation results showed that the oscillator output a 1 MHz clock with 50% duty cycle, which drift less than 0.8% across the temperature range of -40 ℃～125 ℃ and less than 1.23% for three different process corners. The oscillator was insensitive to process and temperature, and showed high stability thus.

Abstract：Aiming at the space explosion and mismatching problems posed by complex constraint repetitions in regular expression. This paper designs a FPGA-based hardware constraint repetition inspection block. Combining with the interleaved ROM block, this block can quickly achieve constraint repetition detection and matching. By defining constraint-repetition-parameter-memory, the counting block consumes only a small amount of hardware resources to achieve constrained duplicate detection matches. Experimental results for module that the counting block can reach Gbps throughput and the regular expression rule storage space compression by more than 50%.

Abstract：In order to provide replicable satellite signal with high precision and stability to the test of satellite navigation receivers, the satellite signal simulator is designed. The system takes DSP+FPGA as the core chip, and integrates RF up-conversion circuit, high speed D/A converter, Flash chip and SDRAM chip. The system could simulate dual-mode and multi-frequency satellite signal, which includes GPS L1, BDS B1I, BDS B2I and BDS B3. The satellite navigation signal generated by the hardware platform has been tested using commercial navigation receivers, and the correctness of the design of satellite signal simulator is verified by the positioning results, which suggests the design requirements are achieved.

Abstract：Aiming at the problem of speed and flexibility in traditional FPGA booting allocation in baseband processing system, this paper presents a method of dynamic loading FPGA configuration file through SD card and network based on TMS320C6A8168. The program has embedded system platform composed of four pieces of FPGA and an ARM C6A8168 processor, by modifying the U-boot code makes the baseband system selectively load FPGA configuration file in PC when running the U-boot, so that the FPGA can complete the corresponding physical layer algorithms and hardware acceleration. It effectively achieves the configuration of the FPGA, improves the flexibility of the FPGA system configuration, and has a good application prospects in the base band processing system.

Abstract：Lock has always been daily necessities. With the development of the social economy and the progress of the science and technology, the higher public requirements on the safety and convenience of lock bring the electronic lock which combines ARM technology with image recognition. This electronic lock collects the key information through camera and then validate the key information by controller decoding information. It has fewer system components, lower hardware dependencies and higher transportabilities. Also, it is easy to use and can constantly update the unlock mode.

Abstract：Pulsars are neutron stars, with 107-109t magnetic field, rotating rapidly, and radiate electric pulse signal periodically. Aircraft positioning and attitude adjustment can be realized by identifying the pulse contour. In this paper, experiment collects TDC data from the X-ray ground simulation facility while the moment of photons reach, then puts TDC data to PC via USB to revert pulse profile. Finally, producing B0531-galaxies pulse signals by using the X-ray ground simulation system in Xi'an Institute of Optics and Precision Mechanics of CAS, the similarity between the pulse profile data restored from experiment and downloaded from NASA is 95.38%.

Abstract：Machine vision online detection is an emerging detection method based on computer vision and image processing. The method, which captures the tested image with the help of camera, gets describable parameters of the measure object by image processing techniques, and ultimately applied in actual test, measurement and control after parsing and judging the parameters, has the features of non-contact, high accuracy, wide application range and high degree of automation. Aiming the interference issues, encountered by the system itself, the difference of load and user operation existed, now in the situation of multi-threaded, high speed and multi-camera visual online detection system is proposed in this paper. Finally experiments show that the method makes the detection speed of high-speed visual on-line detection system increase by 70%，and provides a guarantee of high speed and stable operation for high-speed visual on-line detection system.

Abstract：In order to improve the scalability and reusability of the wind tunnel measurement and control system, and shorten the developing cycle of the software, this paper summarized the universal of the platform for measurement and control system. Based on the object-oriented theory and system architecture design, this paper proposed the hierarchy of the component-based software platform for wind tunnel measurement and control system, analyzed the components division, component communication mode/interfaces and components package of the custom layer structure and function implementation layer, and discussed the control software platform′s prototype system basing on components. All of the above provided a new idea which could further the universal of the measurement and control system.

Abstract：Light scattering is one of the main reasons of the inaccurate spectroscopic measurement and analysis. The Lambert-Beer law no longer exists at the presence of scattering. Three simple scattering reduction methods, such as polarization subtraction, added absorber and spatial filtering methods, are compared here based on Monte Carlo simulation. Three methods are applied to select weakly scattered photons from a scattered light background and then linearize the relationship between light attenuation and absorption coefficients. The degree of the desired linearity of this relationship is determined by the variance of the optical path lengths. Weakly scattered photons have undertaken shorter path lengths, the mean and variance of the path lengths are closer to the thickness of the medium and zero, respectively, while the light intensity is inevitably lowered. Three methods are compared with respect to the temporal responses, relationship between attenuation and absorption, variances of the path lengths and light intensity. It is demonstrated that polarization subtraction method provides the optimum performance among three methods.

Abstract：Structure of rotational inverted pendulum is simple, but the control system is more complicated. This paper introduces the structure of rotational inverted pendulum, Lagrange equation in analytical mechanics linear mathematical model of rotational inverted pendulum is established, the formula and a more accurate equation of state description are deduced, and the instability and controllability of rotational inverted pendulum are analyzed. The control system hardware circuit and software programming are designed. The control process of the system for data acquisition, graphic display, swinging rod is analyzed from natural prolapse to set up the whole process of 180° handstand. System control uses the discrete PID algorithm to ensure the stability of the system. And the infusion of the Kalman filtering algorithm filters the possible jamming signal, which ensures the accuracy of the data.

Abstract：Redundant PLC system is the important way to improve the reliability of industrial control system, which was widely used in many fields as an excellent fault-tolerant solution. However, suitable selection of redundant structure according to the practical application was an inevitable problem in the actual application environment. The reliability and MTBF(Mean Time Between Failures) of single element system, parallel redundancy, triple-module redundancy and double 2-vote-2 redundancy system are analyzed based on basic reliability theories, and the relationship between reliability, MTBF and failure rate of different redundant structure were discussed. The research achievements can provide effective theoretical guide for suitable selection of redundant structure in practical applications.

Abstract：To satisfy the requirements for ad hoc tactical communications network fast dynamic networking, based on the classic USAP protocol, the E-USAP protocol adapted to dynamic topology is proposed. By employing a distributed slot assignment method schemes, the proposed protocol reduces control information exchange cycle by increasing the number of control slots in the frame structure, and can respond quickly to dynamic topology changes. The analysis and simulation indicate the reformed protocol can reduce the networking time under the conditions of static topology，and present good performance on throughput and delay and can better respond to ad hoc network topology changes under the conditions of dynamic topology.

Abstract：Mobile Ad Hoc wireless network nodes took up a lot of network resources and the energy cost of the larger broadcast information in the broadcast packet information. To solve these problems, a multi-hop network data broadcast protocol based on adaptive selection gossiping probabilistic is proposed. The protocol defines the gossiping probability based on the number of network nodes and node density distribution of the average neighbor, to reduce the cost of the broadcast information. It adds the ability to select an adaptive gossiping probability, and excludes the nodes will bring node transmission interruption from the candidate neighbor nodes. Simulation results show that compared with gossiping routing protocols, perceived opportunities transmission Ad Hoc routing protocols and lightweight mobile Ad Hoc network active source routing protocols, the network total energy consumption decreases by 32.5%, 14.6% and 2.1%，and can reduce packet loss rate and reduce packet transmission delay well.

Abstract：Clustering in WSNs is an effective technique for prolonging the network lifetime. Therefore, Prim based tree topology Clustering algorithm for wireless sensor networks(PTTC) is proposed in this paper. PTTC algorithm decides optimal number of clusters, and calculate the probability of optimum number of cluster head. After that, PTTC algorithm introduces current energy and the count that the node has been selected as CH to stochastically select the CH. Finally, the tree in cluster is computed by Prim algorithm, and the data is transmitted among tree. This improves the energy efficient and longer network lifetime. Simulation shows that PTTC algorithm effectively reduces and balances the energy consumption among the nodes, and thus significantly extends the network lifetime.

Abstract：An unknown network protocol classification method based on improved transductive support vector machine learning is proposed to solve the problem of classifying augmented class when unknown network protocol data appeared in the training process. This method uses the large number of unlabeled samples to assist training classification model, where the augment loss of new unknown class samples is described by the loss augment function. TSVM(Transductive Support Vector Machine) optimization model is established and its solving process is deduced, so the decision boundary can classify the unknown class samples. The performance of the proposed method is examined in simulations with real network data sets. The experimental results illustrate the feasibility and effectiveness of the unknown network applications classified by this proposed method.

Abstract：Since the lack of building trust and evaluating means between service provider and consumer in the environment of cloud service，a customer evaluation based trust model(CETrust) was proposed. Firstly, an attribute reduction algorithm was put forward to reduce the evaluation data based on rough set. Secondly, the consumer filtration algorithm based on evaluation similarity was used to improve calculation accuracy. Then, with customer′s credibility fully considered, this model evaluated trust degree combined overall evaluation with sub-item attribute evaluation. Finally, the comprehensive trust degree was calculated through third party′s appraisal and accreditation results. Compared with the existing models, the simulation result shows that the reduction algorithm maintains the accuracy of trust degree calculation. CETrust can filter malicious evaluation to get comprehensive evaluation results that reflects cloud service′s credibility.

Abstract：For massive MIMO systems, conventional minimum mean square error(MMSE) linear detection algorithm can achieve nearly optimal performance when the number of antennas at the base station(BS) is much larger than the number of single-antenna users. But the MMSE detection algorithm involves complicated matrix inversion, thus making it difficult to implement rapidly and effectively. In this paper, a modified MMSE algorithm is proposed, which exploits the channel characteristics occurring in massive MIMO channels and using the symmetric successive over-relaxation(SSOR) method to avoid the matrix inversion. To guarantee the performance of SSOR-based signal detector in practice, a proper quantified relaxation parameter and initial solution for SSOR-based signal detector are proposed too. In addition, from the perspective of algorithm implementation, the channel estimation scheme is adopt, which used in channel hardening-exploiting message passing(CHEMP) receiver. Simulation results verify that the proposed algorithm can achieve its performance quite close to that of the MMSE algorithm with only a small number of iterations.

Abstract：Given that the existing weighted intersection AOA positioning algorithm causes low accuracy and undesirable adaptivity due to the inconsiderateness of bearing line intersection, a method called a robust GDOP-weighted intersection AOA(RGWIAOA) is proposed in this paper. The algorithm mentioned in the paper obtains all the bearing line intersections based on the AOA measurements to blind node from anchor node, confirms the valid intersections by using Circular Error Probable(CEP),assigns the corresponding weight to the valid intersections in accordance with the Geometric Dilution of Precision(GDOP) of the valid intersections, and conducts weighted summation for the valid intersections for position estimation of the blind node. The RGWIAOA method uses the standard deviation of the AOA measured value, and also gives consideration to the anchor node position error in the calculation of GDOP, which enables the method to be with strong robustness. The simulation result shows that the RGWIAOA method has better adaptivity and higher positioning accuracy in different application scenarios compared with the existing method.

Abstract：The amount of astronomical data quickly grows by exponential middleweight, making astronomical data mining face unprecedented challenges. The rapid development of distributed cluster technologies and cloud computing platforms provides new research ideas and methods for massive data processing and analysis. Of them, the distributed cluster technology Hadoop is a meteoric rise, and shows comparative advantages in terms of iterative machine learning and interactive data mining applications. This paper uses the latest release of Sloan Digital Sky Survey hotometric data set to explore the suitability and application problems of the data mining technologies based on Hadoop on the massive astronomical survey data, providing new means and methods for massive astronomical data mining.

Abstract：Traditional processing platforms which are based on CPU,GPU and DSP cannot meet the requirements in real-time processing. FPGA has unique advantages in parallel image processing and provides a much more flexible option between performance and power consumption. By using Vivado High Level Synthesis(HLS),tool of Xilinx,a variable parameter laplacian image filter algorithm has been implemented. And a kind of real-time and visual embedded image processing system is constructed on the ZYNQ-7000 SoC. The experimental results of this system verify different image processing algorithm can be implemented easily on this platform,requirements of real-time，high performance and low cost can be satisfied well. This design provides reference for further high performance image processing system.

Abstract：To solve the Heterogeneous platform development difficulties on period and complexity,a new automatic code generation is put forward. This auto-code-generation comprises of framework configuration,element macro definition,hardware drive,component software and component assembly.Experimental results show that the auto-code-generation meets the demands of real-time,distributed processing and reliability,can ensure the consistence with the actual engineering and reduce workload on manual programming.

Abstract：The design comes up with a C/S architecture intelligent shopping system by the participatory sensing manner based on Android. The system is based on the sensory data, processing data on the server and client side and showing the estimated waiting time at the mall check-out queue to the user side real-timely in the form of map visualization,graphs and pushing notifications with the aid of web-socket technology and the third party delivery service,providing the reference for users to make more reasonable shopping plan,and reducing the waste time. The experiment of the prototype system shows the effectiveness and feasibility of the system.

Abstract：For the problem of face recognition, such as disguise, occlusion, illumination and expression changes, a face recognition based on local feature and kernel low rank representation is proposed. First, it extracts the LBP feature of training and testing sample image. Then it is projected onto the high dimensional feature space by the mapping function. The feature matrix which is projected into the high dimension space is used to extract the common features of the samples by the method of low rank representation after dimension reduction. Finally,it carries on the classified recognition based on the method of residual approximation. The experimental results show that the proposed algorithm is robust to occlusion, camouflage and illumination changes. At the same time, compared with some of current face recognition algorithms,the recognition rate of this proposed algorithm has been significantly improved.

Abstract：Aging test of arrester in DC transmission system needs a high voltage test power supply which can generate a kind of special ripple waveform. For this requirement, a programmable ripple waveform power supply is designed. The power supply uses MSP430 as control MCU, and uses D/A converter and amplitude control to produce high-precision reliable test ripple waveform, then uses power amplifier to amplify the voltage and power. The paper introduces the hardware principle and software structure in detail. Experimental results show that, the power supply can generate valve voltage and bridge voltage accurately, the maximum output voltage can up to 60V, and voltage stability is less than 1%, the frequency stability is less than 0.5%. The power supply can meet the test requirement of ripple waveform for arrester aging test.

Abstract：In order to solve the problem that the voltage regulating soft starter′s electric current reducing effect is poor，in addition, it′s lack of torque and the inverter are expensive beyond that it′s difficult to bypass, this paper analysis the frequency changing theory and flux linkage locus of space voltage vector under sine power supply breaking the dc suppling limited, apply that to the voltage regulation circuit, design multistage switching frequency soft start strategy and develop sine space voltage vector of the soft starter which has the function of step frequency changing. The MATLAB simulation verifies the validity and feasibility. Experimental results show that the soft starter can start asynchronous motor with rated load and limit the start current under the four time of the rated current.

Abstract：Aiming at the efficiency of wireless power transmission system via magnetic coupling resonant(RWPT)，modeled and analyzed the equivalent circuit of series-series(SS) model and series-parallel hybrid(SPPS) model by using the theory of circuit. also deduced the corresponding formula about transmission efficiency. Through the simulation, the changes about transmission efficiency of SS model and SPPS model with its distance and load were compared. Compared with the SS model, the comparative analysis shows SPPS model displays its superiority in long distance, large load and higher efficiency. More over, SPPS model can adjusted the matching capacitance value to achieve higher transmission efficiency in different transmission distance. The theoretical analysis and simulation is verified by building experimental platform.

Abstract：Fiber channel(FC) is a communication protocol that was designed in order to meet the requirements of data transmission. It meets the standardization of system structure and adapts to high speed, large, reliable, effective information communication and processing request, so FC has been widely used in a new generation of electronic systems. Based on the demands of avionics systems for aviation electronic networks, this paper introduces the origin and development of the FC, the protocol layering model of FC, FC frame format and the way of error handling and redundancy management supported by FC network transmission and deeply analyzes the network topology structure and characteristics based on FC protocol, further shows the trend of the development of FC network, and provides a theoretical basis to construct network and network communication based on optical fiber channel technology.

Abstract：On the basis of in-depth study and analysis of the FC network protocol, this paper proposes development scheme which adopts to a mixed-signal SoC design technology realize the FC-AE-ASM protocol processing chip, details the chip architecture design, working principle and technical advantages. The chip was embedded microprocessors, FC-AE-ASM protocol processing engine, high speed switching string and SerDes, PCIe/RapidIO host interface, cooperating with the host processor can complete FC equipment management, communication management, clock synchronization, network management, and other functions and provides external memory interface and the JTAG debug interface.After a multi-angle validation show, the chip function, stable performance can greatly reduce the power consumption of the system, reduce the system volume, improve the system integration.

Abstract：With the development of the aviation electronic technology, and improving the reliability of product, reducing the system′s weight, volume, power consumption and so on, has become a trend of the current design. But the traditional FC-ASM based on the emulation way of FPGA which has big plate area, high power consumption, low reliability and poor universality cannot satisfy the requirement of miniaturization high reliability. This paper proposes an implementation scheme of FC-ASM simulation card based on the independent research and development of the SoC. The design is simple and flexible, integrates FC-AE-ASM protocol communications, equipment management, system management, and other function. At the same time, because of its low power consumption, low cost and the advantages of the light weight, it is now widely used in ground simulation equipment and laboratory environment.

Abstract：Fiber channel audio and video defines the method of transmission which FC network transmits in fiber channel, provides a standard of interface for the interconnection between the video equipment and represents the development trend of video information transmission technology in the avionics system. The video transmission and presentation module of FC-AV is the core and foundation of the transmission demonstration system which is used for the construction of the demonstration system based on the FC-AV agreement. The paper analysis the construction of system of FC-AV transmission and demonstration, introduces a core module of transmission and demonstration which includes a multi-resolution video input information collection, the organization of container system, data frame transmission of FC encapsulation and multi-resolution transmission demonstration video output information. This article verifies the method based on optical fiber channel image information and provides the reference and solutions for the construction of the transmission system based on FC-AV the agreement.

Abstract：FC network is a new pattern of technology of high speed communication and a new generation of first choice of integrated avionics system for communication network. FC network technology of domestic airborne lacks of a complete technology system. It is particularly important to develop a complete set of application solution of FC network technology. This paper introduces a scheme of solution of FC network technology. It details the constructing principle and application equipment of FC network system, introduces the application equipments of core network that include FC switches, FC node machine and transmission medium, and application equipments of network configuration which contain FC network configuration tool, FC protocol analysis, data collection, record, simulation, etc. It supports and promotes our country the development of a new generation of airborne FC network technology.