Advanced Search

2011 Vol. 37, No. 11

  Previous Issue | Next Issue 
Display Method:
On compressive sensing applied to SAR imaging
Xiao Peng, Li Chunsheng, Yu Ze
2011, 37(11): 1333-1337.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 1048
Abstract:
State of the art radar systems apply a large bandwidth and an increasing number of channels produce huge amount of data. The data easily exceeds that be stacked in the sensor or downlinked to the ground station. In order to solve this trouble, a novel synthetic aperture radar (SAR) raw data retrieva...
Motion blur of star image and restoration
Wu Xiaojuan, Wang Xinlong
2011, 37(11): 1338-1342.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 835
Abstract:
The impact of vehicle angular and vibrational motion on the star imaging process was researched, and the mathematical model of motion blur corresponding to various flight states was deduced and established then. On this basis, the mechanism of multiple motion blur was discussed. In order to ensure t...
Cooperative generation of phantom radar track using a team of ECAVS based on RGPO
Gao Bin, Mao Shiyi, Sun Jinping
2011, 37(11): 1343-1346.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 814
Abstract:
The technology of track deception for cooperative control of multiple electronic combat air vehicles(ECAVs) was analyzed by kinetics model. ECAVs were used to generate phantom radar tracks in multiple radar air defense network. Two-dimensional analyses of scenarios were provided involving single ECA...
Guidance and control law design for an impulsive logic-based switching flight system
Chen Jian, Tian Yuan, Ren Zhang
2011, 37(11): 1347-1352.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 643
Abstract:
Guidance and control law design for an interceptor equipped with both aero fins and side jets was discussed. Since the aerodynamic lift force for generating available norm load is not enough at high altitude, side jets are introduced into the interceptor dynamics to increase its maneuver capability ...
Tracking technique in the presence of standoff jamming
Xu Haiquan, Wang Guohong, Guan Chengbin
2011, 37(11): 1353-1358.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 884
Abstract:
In the presence of standoff jamming(SOJ), radar has low probability of target detection, which brings up the trackloss and decreases the track lifetime. Aimed at these problems, a combined target tracking approach was presented. The approach has two components: particle filter based track before det...
Effects of wing planform on aerodynamics force production of stroking model insect wing
Mou Xiaolei, Sun Mao
2011, 37(11): 1359-1364,1371.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 781
Abstract:
The effects of wing planform (shape and aspect ratio) on the aerodynamic force production of model insect wings in stroking motion were investigated, using the method of computational fluid dynamics. Ten respective insect wings were considered, they were the wings of fruit fly, cranefly, dronefly, h...
Singular perturbation midcourse guidance law based on dynamic inversion for air-to-air missile
Qiao Qingqing, Chen Wanchun
2011, 37(11): 1365-1371.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 743
Abstract:
A near optimal midcourse guidance law incorporating a linear combination of flight time and terminal specific energy as the performance index was derived using singular perturbation theory and dynamic inversion. Missile state functions were put into three time-scale system according to the time cons...
Fault detection of dual redundant actuation system based on the fault modeling
Fu Yongling, Pang Yao, Liu Hesong, Zhang Ye
2011, 37(11): 1372-1377.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 815
Abstract:
In order to solve the problem of fault diagnosis of dual redundant actuation system characterized by complicated structure, a fault diagnosis method based on reverse-reasoning of fault models was proposed. With all the failure mechanism of different components considered, the typical fault models of...
Method of TDOA multi-station passive location based on weighted matrix
Chang Xiaoming, Zhang Xiaolin, Zhang Qiang
2011, 37(11): 1378-1383.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 795
Abstract:
Passive location technology has been applied broadly these years. Taylor expansion method was commonly used by the traditional multi-station passive location system. A new method of time difference of arrival(TDOA) passive location with multi-station based on weighted matrix was presented. When the ...
Electromagnetic interference caused by aerospace explosives
Cao Jingyang, Xie Shuguo, Su Donglin, Ma Zhichao
2011, 37(11): 1384-1387,1394.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 982
Abstract:
Simulative experiments on the ground were carried out to measure the radiation by chemical explosion of aerospace explosives in stage separation and evaluate the impaction on the electronics in the rocket. Electromagnetic pulses by different explosives were captured by a rod antenna and measured by ...
Satellite attitude determination algorithm of model error robustness
Wei Mingkun, Yang Jing
2011, 37(11): 1388-1394.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 707
Abstract:
A new high-precision star sensor/gyro attitude determination algorithm based on nonlinear predictive filter (NPF) and second-order divided difference filter was presented. In this algorithm, model error was estimated by NPF, and the state was estimated via second-order divided difference filter by u...
Improved analysis method of risk priority number
Chen Zhengping, Fu Guicui, Zhao Youhu
2011, 37(11): 1395-1399.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 648
Abstract:
Aiming at the defect of traditional risk priority number(RPN) method in process failure modes and effects analysis(PFMEA),the reasons of the defect thoroughly were analyzed, and a new RPN ranking method based on cost and probability was presented which is combined qualitative analysis with quantitat...
Tactical data link system with low-density parity-check code scheme
Li Hang, Chen Wei
2011, 37(11): 1400-1403,1409.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 660
Abstract:
In information warfare, military combat capability can be improved by tactical data link system of which coding is one of crucial techniques of the transmission reliability. A new type of tactical data link system was proposed employing low-density parity-check (LDPC) code scheme, which is a new set...
Experiments of combined heat transfer in leading of blades at rotating state
Gu Zhenpeng, Deng Hongwu, Tao Zhi, Zhu Jianqin
2011, 37(11): 1404-1409.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 752
Abstract:
Transient experiment was performed to study the heat transfer characteristic of impingement cooling with outflow film in the leading of turbine blades at rotating state. And, the effect of Coriolis forces and centrifugal forces on combined heat transfer effectiveness was discussed. The Reynolds numb...
Wear condition prediction of hydraulic pump
Ge Wei, Wang Shaoping
2011, 37(11): 1410-1414.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 999
Abstract:
Wear is a typical progressive failure of aero hydraulic pump. It is difficult to measure wear loss. To solve precision wear condition prediction problem, multi-dimensional support vector machine (SVM) prediction method was proposed, based on theoretical basis of SVM applied to time series prediction...
Safety simulation applying Stateflow technology
Wang Bei, Zhao Tingdi
2011, 37(11): 1415-1420.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 904
Abstract:
The accident-process oriented safety simulation method was proposed to ensure the safety of high risk systems, as well as explore the movement during the accident evolution and emergency treatment. The modeling and simulation method was designed upon the principle of finite state machine and the tec...
Analysis of features of particulate matters emitted from engine fueled with petroleum coke slurry
Xiang Liming, Li Xinghu
2011, 37(11): 1421-1424.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 600
Abstract:
Scanning electron microscope, X-ray energy dispersive spectroscopy and thermal gravimetric analyzer were used to detect the surface structure, chemical component and combustion characteristics of petroleum coke particulate matter (PM) samples and PM samples from the exhausts of engine fueled with pe...
Effect of mix milling on the microstructure and surface modification of YAl2 particles
Zhang Xin, Wu Guoqing, Ling Zhaohua, Huang Zheng
2011, 37(11): 1425-1428.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 599
Abstract:
A homogeneous distribution of ultrafine YAl2 particles in YAl2/Mg mixture was obtained by mix-milling method. The effect of milling on the microstructure of YAl2 particles and the dispersion of YAl2 particles in the mixture were investigated by scanning electron microscopy (SEM), energy dispersive X...
Estimation for detection probability of infrared point target under complex backgrounds
Mao Xia, Chang Le, Diao Weihe
2011, 37(11): 1429-1434.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 859
Abstract:
The detection probability of infrared(IR) imaging system for point target will always be affected by complex backgrounds, but present methods can not be applied in the condition of complex backgrounds. Beginning from the model of operating distance of IR imaging system for point target, the relation...
Pulse phase thermography chirp Z transform
Ma Shuohan, Ma Qishuang
2011, 37(11): 1435-1439,1445.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 715
Abstract:
In order to solve the problem of insufficient frequency resolution, occurring at the infrared detection data processing by the pulse phase thermography (PPT), a new frequency domain transform method was proposed. The fast Fourier transform (FFT) was utilized to choose the narrow frequency band inclu...
Afterbody/nozzle optimal design of hypersonic vehicle
Gan Wenbiao, Yan Chao
2011, 37(11): 1440-1445.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 846
Abstract:
Through combining design of experiment (DOE), surrogate models with genetic algorithms, modified optimization method was built,which was applied in the integrated design of afterbody/nozzle of a hypersonic vehicle．The sequential global surrogate models were developed to satisfy the computational dem...
Two-axes mechanism for satellite antenna disturbance characteristics simulation and experiment
Wu Shijian, Cheng Wei
2011, 37(11): 1446-1450,1455.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 680
Abstract:
The micro-disturbance of satellite antenna is a key factor which will affect the accuracy of satellite attitude control. The satellite disturbance modeling is aimed for obtaining the disturbance characteristics and then adopting corresponding control methods and isolation systems to restrain it. On ...
Scalar multiplication algorithm of ECC based on precomputation and periodicity
Zhang Xiaoqiang, Zhu Guiliang, Wang Weiping, Wang Mengmeng
2011, 37(11): 1451-1455.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 672
Abstract:
Based on the binary method, non-adjacent form (NAF) method, etc., a new scalar multiplication algorithm was proposed, which uses the periodicity of based point and the precomputation mean. Meanwhile, the steps of new algorithm were given. The periodicity of based point and the coefficient of scalar ...
Effects of airflow split and primary holes arrangement on lean blowout limits of combustor with dual-axial swirlers
Xie Fa, Huang Yong, Miao Hui, Chen Haigang
2011, 37(11): 1456-1460.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 679
Abstract:
An experimental research was conducted for the effect of the variations of dome air entry areas and the arrangement of primary holes on the lean blowout (LBO) limits of a single dome rectangular model combustor with dual-axial swirl cups. The experimental results show that the variations of air entr...
Risk assessment and sensitivity analysis of detector safety landing
Li Tao, Yang Jun, Fei Simiao
2011, 37(11): 1461-1464.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 710
Abstract:
Safe landing of detector is the key of planetary exploration, but the success probability of landing is still low, and the study of landing risk is very important in practical engineering. The detector-s structure and landing way were analyzed, and the main influence factors of the safety landing we...
Finite element model updating of airplane wing based on Gaussian radial basis function response surface
Qin Yuling, Kong Xianren, Luo Wenbo
2011, 37(11): 1465-1470.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 794
Abstract:
The benchmark finite element model(FEM) of the airplane wing was constituted using the three-dimensional solid element SOLID45 in ANSYS, and the uniform design method was employed to group the structure parameters to calculate the corresponding modal frequencies of each set of parameters, then the G...
Analysis of electromagnetic radiation for airborne very-low-frequency (VLF) dual trailing antenna in half-space
Wu Longgang, Su Donglin, Chen Jiajia, Wu Nankai
2011, 37(11): 1471-1474.
Abstract References Relative Articles Resource File Access Statistics iconViews $!{v.htmlCount} iconDownload 656
Abstract:
Electromagnetic radiation characteristics of an airborne very-low-frequency (VLF) dual trailing antenna in the half-space (a space including air and seawater) were studied. The airborne VLF dual trailing antenna models in half-space were established and calculated by finite element method (FEM). The...

Copyright © Journal of Beijing University of Aeronautics and Astronautics

Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@buaa.edu.cn

Supported by: Beijing Renhe Information Technology Co., Ltd.