基于时差的同类辐射源信号分选定位方法

马贤同; 罗景青; 孟祥豪

doi:10.11999/JEIT141480

基于时差的同类辐射源信号分选定位方法

doi: 10.11999/JEIT141480

基金项目:

国家自然科学基金(60801044)

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出版历程
- 收稿日期: 2014-11-24
- 修回日期: 2015-07-13
- 刊出日期: 2015-10-19

Signal Sorting and Positioning Method for Similar Radiation Sources Based on Time Difference of Arrival

Funds:

The National Natural Sciece Foundation of China (60801044)

摘要

摘要: 多站电子侦察系统中，多个观测站接收到的脉冲信号的时差信息可用于信号分选和定位。但当多个参数相近的同类辐射源信号在时域和频域都混叠在一起时，会得到大量虚假时差信息。该文结合目标位置信息场定位法，提出基于时差的同类辐射源信号分选定位方法。该方法首先利用时差窗先验信息，将主站与副站的脉冲进行时差和参数匹配提取同类辐射源的时差信息，然后对得到的所有时差利用目标位置信息场定位法确定目标数目和位置，最后利用定位结果确定真实时差，剔除虚假时差，完成信号分选和目标精确定位。仿真实验验证了该方法的有效性和实用性。
- 信号分选 /
- 多目标定位 /
- 到达时间差 /
- 同类辐射源 /
- 目标位置信息场
Abstract: In multiple platform electronic reconnaissance system, Time Difference Of Arrival (TDOA) of the pulse signal received by multiple stations can be used for signal sorting and positioning. However, when multiple emitter signals with similar parameters are mixed together in time and frequency domain, a lot of false TDOA information will be obtained by stations. Combined with Position Information Field (PIF) location method, a signal sorting and positioning method for similar radiation sources based on TDOA is proposed. TDOA information about similar radiation sources is firstly extracted from the pulses of all stations and TDOA window information by matching TDOA and multi-parameter in the proposed method. Then, multi-targets number and each targets position are obtained by position information field for target location method based on the TDOA information. Finally, positioning results are used to determine the real TDOA, eliminate the false TDOA, and complete signal sorting and target accurate positioning. Simulation results demonstrate the effectiveness and the practicality of this method.
- Signal sorting /
- Multi-target location /
- Time difference of arrival /
- Similar radiation sources /
- Position information field for target

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参考文献(24)

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