基于時差的同類輻射源信號分選定位方法

馬賢同; 羅景青; 孟祥豪

doi:10.11999/JEIT141480

基于時差的同類輻射源信號分選定位方法

doi: 10.11999/JEIT141480

基金項目:

國家自然科學(xué)基金(60801044)

計量
- 文章訪問數(shù): 1234
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- 被引次數(shù): 0
出版歷程
- 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: 多站電子偵察系統(tǒng)中，多個觀測站接收到的脈沖信號的時差信息可用于信號分選和定位。但當(dāng)多個參數(shù)相近的同類輻射源信號在時域和頻域都混疊在一起時，會得到大量虛假時差信息。該文結(jié)合目標(biāo)位置信息場定位法，提出基于時差的同類輻射源信號分選定位方法。該方法首先利用時差窗先驗信息，將主站與副站的脈沖進(jìn)行時差和參數(shù)匹配提取同類輻射源的時差信息，然后對得到的所有時差利用目標(biāo)位置信息場定位法確定目標(biāo)數(shù)目和位置，最后利用定位結(jié)果確定真實時差，剔除虛假時差，完成信號分選和目標(biāo)精確定位。仿真實驗驗證了該方法的有效性和實用性。
- 信號分選 /
- 多目標(biāo)定位 /
- 到達(dá)時間差 /
- 同類輻射源 /
- 目標(biāo)位置信息場
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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參考文獻(xiàn)(24)

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