基于虚拟时差的运动阵列空间无源定位算法

周龙健; 罗景青; 孔辉

doi:10.11999/JEIT160860

基于虚拟时差的运动阵列空间无源定位算法

doi: 10.11999/JEIT160860

基金项目:

陕西省自然科学基础研究计划项目(2013JQ8020)

计量
- 文章访问数: 1006
- HTML全文浏览量: 82
- PDF下载量: 360
- 被引次数: 0
出版历程
- 收稿日期: 2016-08-26
- 修回日期: 2016-11-24
- 刊出日期: 2017-07-19

A Passive Location Algorithm Based on the Virtual TDOAs of Moving Array

Funds:

Natural Scientific Fundamental Research Project of Shanxi Province of China (2013JQ8020)

摘要

摘要: 针对脉冲骨架周期固定的雷达脉冲信号辐射源无源定位问题，该文提出一种基于虚拟时差的运动阵列空间无源定位算法，采用运动单阵列接收目标辐射源信号，通过多次测量侦察站不同位置的脉冲到达时间来估计目标辐射源位置。分别针对脉冲骨架周期已知和未知两种情况，提出了一种基于高阶统计量的无源定位算法，并推导了不同情况下定位精度的克拉美罗界。仿真实验表明，不同情况下定位算法定位精度逼近克拉美罗界，且脉冲骨架周期已知时虚拟时差无源定位算法定位精度优于同孔径实阵列TDOA无源定位算法定位精度，脉冲骨架周期未知时虚拟时差无源定位算法定位精度低于同孔径实阵列TDOA无源定位算法定位精度。
- 无源定位 /
- 虚拟时差 /
- 运动阵列 /
- 克拉美罗界 /
- 高阶统计量
Abstract: To solve the problem of passive location for the emitter with fixed Pulse Framework Cycle (PFC), a passive location algorithm based on virtual TDOAs of moving array is proposed. The signal is received by a moving single sensor. The position of emitter is estimated with the multiple measurements of pulse arrival time in different sensor locations. A passive location algorithm based on high-order statistics is proposed for pulse framework cycle known and unknown. The Cramer-Rao Lower Band (CRLB) is derived in the above two cases. The simulation results show that the location accuracy is close to CRLBs in different cases. When pulse framework cycle is known, the location accuracy of virtual TDOAs is better than the real aperture array. When pulse framework cycle is unknown, the location accuracy of virtual TDOAs is slightly lower than the real aperture array.
- Passive location /
- Virtual TDOAs /
- Moving array /
- Cramer-Rao Lower band /
- High-order statistics

HTML全文

参考文献(19)

罗景青, 刘文山. 固定单站对运动辐射源无源定位的最小二乘估计算法[J]. 信号处理, 2000, 16(B12): 53-58.

LUO Jingqing and LIU Wenshan. Passive location and tracking for moving emitters by single observer[J]. Signal Processing, 2000, 16(B12): 53-58.

郭福成, 贾兴江, 皇甫堪. 仅用相位差变化率的机载单站无源定位方法及其误差分析[J]. 航空学报, 2009, 30(6): 1090-1095.

GUO Fucheng, JIA Xingjiang, and HUANGFU Kan. A single observer passive localization method using phase difference changing rate only and its error analysis[J]. Acta Aeronautica et Astronautica Sinica, 2009, 30(6): 1090-1095.

李望西, 黄长强, 王勇, 等. 利用相位差变化率的机载无源定位跟踪改进算法[J]. 电子与信息学报, 2013, 35(1): 68-73. doi: 10.3724/SP.J.1146.2012.00345.

LI Wangxi, HUANG Changqiang, WANG Yong, et al. An improved airborne passive location tracking algorithm using the rate-of-change of phase difference[J]. Journal of Electronics Information Technology, 2013, 35(1): 68-73. doi: 10.3724/ SP.J.1146.2012.00345.

韩彦明, 郁春来, 万方, 等. 雷达对抗侦察系统对运动目标的单站无源定位[J]. 现代雷达, 2013, 35(7): 67-71.

HAN Yanming, YU Chunlai, WAN Fang, et al. Single observer passive location of radar counterreconnaissance system for moving targets[J]. Modern Radar, 2013, 35(7): 67-71.

周亚强, 曹延伟, 冯道旺, 等. 基于视在加速度与角速度信息的单站无源定位原理与目标跟踪算法研究[J]. 电子学报, 2005, 33(12): 2120-2124.

ZHOU Yaqiang, CAO Yanwei, FENG Daowang, et al. Single observer passive location and tracking arithmetic using look-acceleration and angle rate of changing information[J]. Acta Electronica Sinica, 2005, 33(12): 2120-2124.

王鼎, 张莉, 吴瑛. 一种速度矢量和位置矢量分离估计的固定单站无源定位改进算法[J]. 宇航学报, 2007, 28(5): 1342-1347.

WANG Ding, ZHANG Li, and WU Ying. An improved algorithm for moving emitter passive location and tracking by estimating its velocity vector and position vector separately based on single non-moving observer[J]. Journal of Astronautics, 2007, 28(5): 1342-1347.

HUANG Z and LU J. Total least squares and equilibration algorithm for range difference location[J]. Electronics Letters, 2004, 40(5): 121-122.

张杰, 蒋建中, 郭军礼. 基于两步最小二乘定位的偏差改进算法[J]. 航空学报, 2016, 37(2): 695-705. doi: 10.7527/S1000- 6893.2015.0182.

ZHANG Jie, JIANG Jianzhong, and GUO Junli. Imprved bias algorithm for localization using two step least square[J]. Acta Aeronautica et Astronautica Sinica, 2016, 37(2): 695-705. doi: 10.7527/S1000-6893.2015.0182.

Ho K C and Chan Y T. Geolocation of a known altitude object from TDOA and FDOA measurements[J]. IEEE Transactions on Aerospace and Electronic Systems, 1997, 33(3): 33-36.

QU Xiaomei and XIE Lihua. An efficient convex constrained weighted least squares source localization algorithm based on TDOA measurements[J]. Signal Processing, 2016, 119: 142-152.

徐义, 郭福成, 冯道旺. 一种单星仅测TOA无源定位方法[J].宇航学报, 2010, 31(2): 502-508. doi: 10.3873/j.issn.1000- 1328.2010.02.031.

XU Yi, GUO Fucheng, and FENG Daowang. A new satellite passive localization method using TOA measurement only[J]. Journal of Astronautics, 2010, 31(2): 502-508. doi: 10.3873/ j.issn.1000-1328.2010.02.031.

施引文献

资源附件(0)

访问统计