【摘要】：針對現(xiàn)有基于信號到達(dá)時差(TDOA)的定位算法難以適應(yīng)輻射源信號非同步到達(dá)的定位問題,提出了一種新的非同步照射輻射源定位算法。該算法利用脈沖樣本圖外推各站輻射源脈沖的到達(dá)時間(TOA)序列,進而計算TDOA序列(TDOAs),解決了非同步照射引起的TDOA計算困難問題,通過兩條雙曲線的漸近線交點求取初值,通過牛頓迭代法實現(xiàn)對輻射源位置的估計。最后給出的數(shù)值仿真結(jié)果驗證了該方法的有效性。
[Abstract]:Aiming at the problem that the existing localization algorithms based on time-of-arrival (TDOA) (TDOA) are difficult to adapt to the problem of non-synchronous arrival of emitter signals, a new localization algorithm for non-synchronous radiation emitter is proposed. In this algorithm, the arrival time (TOA) sequence of emitter pulse is extrapolated from the pulse sample diagram, and then the TDOA sequence (TDOAs), is calculated to solve the difficult problem of TDOA calculation caused by asynchronous irradiation. The initial value is obtained from the intersection point of two hyperbolic asymptotes. The position of emitter is estimated by Newton iteration method. Finally, the numerical simulation results show the effectiveness of the method.
【作者單位】： 電子工程學(xué)院;
【基金】：國家自然科學(xué)基金(No.61171170)
【分類號】：TN911.7

【參考文獻】

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