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同步三星目标运动状态快速检测方法

DOI: 10.13700/j.bh.1001-5965.2013.0631, PP. 1392-1398

Keywords: 频差,时差,无源定位,误差椭圆,运动状态检测

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Abstract:

针对星载无源定位系统难以从定位结果及时准确地检测目标运动状态的问题,利用同步三星时差定位体制的定位误差特性,根据静止假设下同步双星时/频差与三星定位结果应相匹配的原理,提出了基于定位一致性的目标运动状态快速检测算法.先通过定位结果的误差分析掌握目标实际位置所在区域,然后在静止假设下统计该区域的频差范围,并将定位时刻的频差观测值与之比较,实现目标运动状态检测,并且推导了检测概率的理论表达式.仿真和试验结果验证了算法的有效性,时/频差估计误差标准差为10μs/100mHz时,对速度大于40m/s的目标,检测概率高于99%.实测数据表明该算法显著提高了系统目标运动状态检测的准确性和时效性.

References

[1]  Ho K C, Chan Y T.Solution and performance analysis of geolocation by TDOA[J].IEEE Transactions on Aerospace and Electronic Systems,1993,29(4):1311-1322
[2]  李文华. 三星构型设计与时差定位精度研究[J].宇航学报,2010,31(3):701-706 Li Wenhua.Research on configuration of tri-satellites and location precision of TDOA[J].Journal of Astronautics,2010, 31(3): 701-706(in Chinese)
[3]  Liu K, Chan F,So H C.Semidefinite programming approach for range-difference based source localization[J].IEEE Trans on Signal Processing,2009,57(4):1630-1633
[4]  Yang K, An J P,Xu Z.A quadratic constraint total least-squares algorithm for hyperbolic location[J].International Journal of Communications,Networks and System Sciences,2008,1(2):130-135
[5]  Beck A, Stoica P,Li J.Exact and approximate solutions of source localization problems[J].IEEE Trans on Signal Processing,2008,56(5):1770-1778
[6]  常啸鸣,张晓林, 张强.基于加权矩阵的TDOA多站无源定位算法[J].北京航空航天大学学报,2011,37(11): 13781383 Chang Xiaoming,Zhang Xiaolin,Zhang Qiang.Method of TDOA multistation passive location based on weighted matrix[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(11):1378-1383(in Chinese)
[7]  袁罡,陈鲸. 无源时差定位系统的静止目标聚类检测算法[J].电子与信息学报,2010,32(3):728-731 Yuan Gang,Chen Jing.A clustering detection algorithm of stationary target for passive time difference location system[J].Journal of Electronics & Information Technology,2010,32(3):728-731(in Chinese)
[8]  Ulman R J, Gerantiotis E.Motion detection using TDOA and FDOA measurements[J].IEEE Transactions on Aerospace and Electronic Systems,2001,37(2):759-764
[9]  Pattison T, Chou S I.Sensitivity analysis of dual-satellite geolocation[J].IEEE Transactions on Aerospace and Electronic Systems,2001,36(1):56-71
[10]  魏合文,夏畅雄, 叶尚福.双星定位系统中目标移动性检测与仿真[J].系统仿真学报,2007,19(11):2543-2573 Wei Hewen,Xia Changxiong,Ye Shangfu.Motion detection and simulation in dual-satellite geolocation system[J].Journal of System Simulation,2007,19(11):2543-2573(in Chinese)
[11]  夏畅雄, 叶尚福,王俊辉.卫星干扰源定位系统中卫星星历校正技术[J].宇航学报,2008,29(3):860-863 Xia Changxiong,Ye Shangfu,Wang Junhui.Ephemeris determination in satellite interference location system[J].Journal of Astronautics,2008,29(3):860-863(in Chinese)
[12]  严航,朱珍珍. 基于积分抽取的时/频差参数估计方法[J].宇航学报,2013,34(1):95-105 Yan Hang,Zhu Zhenzhen.Fast algorithm for joint estimation of DTO and DFO based on integrate-and-dump filters[J].Journal of Astronautics,2013,34(1):99-105(in Chinese)
[13]  严航,叶尚福, 朱珍珍.基于解调分选的时分多址信号时/频差参数联合估计方法[J].宇航学报,2013,34(4): 531538 Yan Hang,Ye Shangfu,Zhu Zhenzhen.Algorithm for joint estimation of DTO and DFO for TDMA signals based on signal demodulation and sorting[J].Journal of Astronautics,2013, 34(4): 531-538(in Chinese)
[14]  Torrieri D J. Statistical theory of passive location systems[J].IEEE Transactions on Aerospace and Electronic Systems,1984,AES-20(2):183-198
[15]  王艳永,杨功流, 袁二凯,等.四维引导定位TSEP精度评估方法[J].北京航空航天大学学报,2013,39(7):875-879 Wang Yanyong,Yang Gongliu,Yuan Erkai,et al.TSEP positioning accuracy evaluation approach applied in 4D guidance[J].Journal of Beijing University of Aeronautics and Astronautics,2013,39(7):875-879(in Chinese)

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