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2013 Vol. 39, No. 7

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Predictive reentry guidance with aerodynamic parameter online correction
Liang Zixuan, Ren Zhang
2013, 39(7): 853-857.
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A new predictive reentry guidance algorithm based on aerodynamic parameter online correction for hypersonic gliding vehicles was presented. The constraints of reentry flight were studied, and a basic program for controller design was given. The aerodynamic parameters’ errors in the process of tradit...
Two methods for vibration analysis of variable-mass systems
Xing Yufeng, Xie Ke, Pan Zhongwen
2013, 39(7): 858-862.
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The vibration analysis of variable-mass systems is of great importance in astronautics and aeronautics. The dynamical governing equation of a general variable-mass system was obtained by using the virtual displacement principle in conjunction with the conservation law of momentum, and the effects of...
Fast reliability evaluation for SRAM-based spaceborne FPGAs
Zhao Lei, Wang Zulin, Zhou Lina, Yang Lan
2013, 39(7): 863-868.
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Static random access memory(SRAM)-based field programmable gate arrays (FPGAs) reliability is seriously affected by space radiation. A new method for fast reliability evaluation of SRAM-based FPGAs was proposed. Based on traditional fault injection technique, a pre-evaluation was introduced to analy...
Optimal attitude estimation algorithm based on mulitiple star-sensor observations
Ma Hongliang, Chen Tong, Xu Shijie
2013, 39(7): 869-874.
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In most of attitude determinations with methods by using the combination of star-sensors and gyros, the accuracy of attitude determination is high due to the high accuracy of star sensors. However, because of the improper processing of observation model and error, the observation correction ability ...
TSEP positioning accuracy evaluation approach applied in 4D guidance
Wang Yanyong, Yang Gongliu, Yuan Erkai, Zhang Lu
2013, 39(7): 875-879.
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As humans exploration activities increase in deep space and identification needs of space navigation equipment, traditional probability indicators and evaluation approach cannot meet the system requirements. Three sphere error probabilitiy (SEP) calculation methods were deduced and induced: triple i...
Modeling and simulation of aircraft fuel system under the framework of electromechanical integrated management
Yang Bo, Zheng Jie
2013, 39(7): 880-884,889.
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A fuel system simulation platform for a certain aircraft was built by Simulink under the framework of electromechanical integrated management. The principle and realization of each subsystem of simulation platform were expounded. This platform has achieved the basic functions of fuel system includin...
Pressure losses in gas flow through sudden contractive sharp bends in micro channels
Cao Jiaokun, Ding Shuiting, Du Farong
2013, 39(7): 885-889.
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Flows through sudden-contractive sharp bends in rectangular cross-section micro channels were studied by using finite volume method. Specifically, the effects of Reynolds number and cross-section area ratio on local flow patterns and bend pressure losses were investigated. Reynolds number ranges fro...
Simulation and application on aviators’ lung injury during rapid decompression of cabin
Li Jingwen, Xiao Huajun, Ding Li, Shi Haiwen
2013, 39(7): 890-896.
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Based on the mechanism of aviators' lung injury during rapid decompression of cabin, a non-rigid lung model for rapid decompression by considering the effect of aviator's breath state and clearness of the respiratory tract was established. The calculation and results display were accomplished throug...
Visual features of pilot based on Markov chain under flight simulator
Sun Ruishan, Wang Ning
2013, 39(7): 897-901.
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In order to study the visual features of pilot in difference flight phases, an integrated flight simulator was used to built an experimental platform, and a kind of non-contact eye tracker named FaceLAB4.0 was used to track the data of the tester. The tester was asked to complete the takeoff task. B...
Compound control system design based on adaptive backstepping theory
Zhang Tianyu, Dong Changhong
2013, 39(7): 902-906.
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Combat environment for air-defense missile is very complex, for example, high-speed and high- maneuverability. Reaction-jet and aerodynamics compound control and guidance technology is the crucial problem of air-defense missile control and guidance system design. The control law and guidance laws fo...
Efficiency coefficient method to solve interval multi-objective linear optimization problems
Wang Chong, Qiu Zhiping
2013, 39(7): 907-911,916.
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Based on the efficiency coefficients, a new interval model and its correlative method for solving multi-objective optimization problems with uncertain parameters in the engineering field were proposed. A group of supplementary variables were introduced to transform the interval objective functions i...
Optimization design of synchronization mechanism for deployment of spacecraft appendages
Song Shunguang, Wang Chunjie
2013, 39(7): 912-916.
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Dimensional synthesis of the synchronization mechanism for deployment of spacecraft appendages was carried out according to the requirements of the deployment motion. A set of independent variables were selected for deduction of the mathematical model of the mechanism that satisfies the position req...
Modeling and control of giant magnetostrictive actuators based on Hammerstein-like model
Liu Ping, Mao Jianqin, Zhang Wei, Zhou Kemin
2013, 39(7): 917-921,926.
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The rate-dependent hysteresis in giant magnetostrictive materials is a major impediment to the application of such material in actuators. A Hammerstein-like model based on the least square support vector machines (LS-SVM) was proposed to model the rate-dependent hysteresis system. It was possible to...
Integrated navigation method for SINS and odometer
Zhang Xiaoyue, Yang Gongliu, Zhang Chunxi
2013, 39(7): 922-926.
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In order to complete independent navigation for land vehicle, integration of strapdown inertial navigation system (SINS) and odometer was realized based on Kalman filter. Odometer error model was proposed, which was associated with inertial measurement unit(IMU) error model and INS error model, and ...
Probabilistic analysis for turbine disc radial displacement
Zhao Heyang, Bai Guangchen, Fei Chengwei, Xing Weizhen
2013, 39(7): 927-931.
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To reasonably design and control blade-tip clearance, the nonlinear and dynamic probabilistic analysis of disk radial deformation was studied based on finite element model (FEM) and response surface method (RSM). Through deterministic analysis of disk deformation considering material nolinear and lo...
Error analysis and optimal bandwidth design for SINS-aided GPS tracking loop
Ji Xinchun, Wang Xinlong, Li Yafeng
2013, 39(7): 932-936.
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Design of the strapdown inertial navigation system (SINS) aided global positioning system (GPS) tracking loop is the primary process in the realization of the SINS/GPS ultra-tight integration system, and the loop bandwidth selection is the key to balance the performance of tracking loop under differ...
Surface roughness of AerMet100 substrate and bond strength between the substrate and HVOF WC10Co4Cr coating
Wang Changliang, Gao Junguo, Tang Zhihui
2013, 39(7): 937-942.
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WC10Co4Cr coating was produced on the AerMet100 alloy by high velocity oxygen fuel srpaying(HVOF). Effect of grit blasting on surface roughness and bond strength between AerMet100 alloy and WC10Co4Cr coating was studied. Influence of fabrication process for the coating on the surface roughness of th...
Stretch bending die clearance influence on forming accuracy to complex section profile
Guo Tao, Li Xiaoxing
2013, 39(7): 943-946.
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The finite element analysis(FEA) method was adopted to simulate the stretch-bending process for complex asymmetric section aluminum alloy profile, and the effect on distortion and the influence of spring back due to die clearance of symmetry and asymmetry was studied. The results show that thickness...
Lifetime evaluation method with integrated accelerated testing and field information
Wang Lizhi, Jiang Tongmin, Li Xiaoyang, Wang Xiaohong
2013, 39(7): 947-951.
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Accelerated testing is an important method in lifetime prediction. It can obtain enough lifetime information in short time. Sometimes, the lifetime information from the laboratory condition and the one from actual condition are different. To solve the problem above, a Bayesian evaluation method was ...
Fault detector of fault-tolerant distributed systems based on self-adaptive heartbeat algorithm
Wang Ming, Zhang Chunxi, Yi Xiaosu
2013, 39(7): 952-956.
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The detection of failures is one of the fundamental issues for fault tolerant distributed systems. In order to improve the performance of the fault detection, a novel failure detector called self-adaptive heartbeat detector (SA-HD) was proposed. SA-HD employed a self-adaptive heartbeat detecting alg...
Applying of Groebner bases method in LEO satellite networks routing optimization
Gao Zhijie, Sun Fuchun, Yang Zhian, Yang Dongfang
2013, 39(7): 957-962.
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The multi-objective quality of service(QoS) routing problem in low earth orbit (LEO) satellite networks was convinced as a non-deterministic polynomial complete (NPC) problem. Based on the regular and predictable features of topology changes in low earth orbit (LEO) satellite networks, the Groebner ...
Fast recursive adaptive weight stereo matching
Yang Kui, Zhao Yan, Su Qinghua, Deng Nianmao
2013, 39(7): 963-967.
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Stereo matching based on traditional adaptive weight is computational intensive. The basic idea of adaptive weight is that bigger weight should be given to those pixels with less color difference and shorter distance. A novel weight was defined to recursively implement cost aggregation. The weight b...
Fault diagnosis approach based on multiple model estimator with simplified CDKF
Qiu Yueheng, Zhang Weiguo, Zhao Pengxuan, Liu Xiaoxiong
2013, 39(7): 968-972.
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As the direct application of traditional Kalman filter to fault diagnosis of the nonlinear system usually results to low estimation accuracy, a new fault diagnosis approach was proposed. The method combines the multitude model adaptive estimation and the simplified central difference Kalman filter. ...
Least Wilcoxon learning method based fuzzy tree model
Zhang Wei, Mao Jianqin
2013, 39(7): 973-977.
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Fuzzy tree (FT) method used the least square method to learn the consequent parameters of the fuzzy rules, so it was sensitive to the outliers. The least Wilcoxon learning method was used to replace the least square method and a robust modeling method against (or insensitive to) outliers was propose...
Analog electronic system multiple fault diagnosis based on minimizing-deviation LS-SVR
Xie Lulu, He Yuzhu, Li Jianhong
2013, 39(7): 978-982.
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Aiming at multi-duplicated samples training and excessive training models in the process of multi-classification with standard support vector machine, and insuring high integral and partial diagnosis accuracy for analog electronic system, a multiple fault diagnosis method based on minimizing-deviati...
Simulation method for PBIT fault detection and false alarm reduction based on stateflow
Li Haiwei, Shi Junyou, Liu Hongtao
2013, 39(7): 983-989.
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Aiming at the application requirements of built-in test (BIT) technology in equipment design for testability and prognostic and health management (PHM), a method of periodic BIT (PBIT) simulation based on stateflow was proposed. The fault detection features and fault alarms problem were analyzed, an...
Pruning the Volterra series for behavioral modeling of power amplifiers
Liao Yi, Su Donglin, Wu Qi, Song Xinwei
2013, 39(7): 990-994.
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General Volterra series based models are limited to weakly nonlinear systems due to their high complexity. It involves a great number of coefficients for behavioral modeling of power amplifier with strong nonlinearities and long memory effects. The behavioral modeling of radio frequency (RF) power a...

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