發(fā)布時(shí)間：2018-01-06 18:50

  本文關(guān)鍵詞：目標(biāo)引入干擾條件下的Wald檢測(cè)器　出處：《電子與信息學(xué)報(bào)》2017年09期 　論文類型：期刊論文

  更多相關(guān)文章： 自適應(yīng)檢測(cè) 多通道信號(hào)檢測(cè) 目標(biāo)引入干擾 Wald檢測(cè)準(zhǔn)則

【摘要】：多徑效應(yīng)或多輸入多輸出(MIMO)雷達(dá)發(fā)射波形不完全正交的情況下會(huì)引入干擾,此種干擾通常被稱為目標(biāo)引入干擾。針對(duì)存在目標(biāo)引入干擾的目標(biāo)檢測(cè)問(wèn)題,該文基于Wald準(zhǔn)則提出適用于均勻環(huán)境和非均勻環(huán)境下的自適應(yīng)檢測(cè)器,所提出的檢測(cè)器可有效抑制目標(biāo)引入的干擾,且具有恒虛警率(CFAR)特性。仿真結(jié)果表明,當(dāng)干擾子空間已知時(shí),該文所提出的檢測(cè)器可完全抑制干擾,當(dāng)干擾子空間未知時(shí),所提檢測(cè)器可有效抑制位于信號(hào)子空間的正交補(bǔ)空間內(nèi)的干擾。
[Abstract]:Multipath effect or multiple input multiple output (MIMO) radar waveform is not completely orthogonal case will introduce interference, such interference is often referred to as the goal. In order to solve the problem of the interference of target detection targets by the interference, this paper based on Wald criterion is proposed for uniform and non uniform environment adaptive detector, interference detector the proposed can effectively inhibit the target is introduced, and a constant false alarm rate (CFAR) performance. The simulation results show that when the interference subspace is known, the proposed detector can suppress interference, when the interference subspace is unknown, the proposed detector can effectively suppress the signal subspace in the orthogonal complement interference in the space.

【作者單位】： 空軍預(yù)警學(xué)院;
【基金】：國(guó)家自然科學(xué)基金青年基金(61501505,61501506) 湖北省自然科學(xué)基金(2015CFB607)~~
【分類號(hào)】：TN957.51
【正文快照】： 多通道信號(hào)自適應(yīng)檢測(cè)是雷達(dá)領(lǐng)域的一個(gè)重要研究?jī)?nèi)容。針對(duì)高斯噪聲背景下目標(biāo)導(dǎo)向矢量已知的檢測(cè)問(wèn)題,Kelly[1]基于廣義似然比準(zhǔn)則(Generalized Likelihood Ratio Test,GLRT)提出了GLRT檢測(cè)器,記作KGLRT檢測(cè)器�；贕LRT準(zhǔn)則的兩步實(shí)現(xiàn),文獻(xiàn)[2]得到了自適應(yīng)匹配濾波(Adaptive，

本文編號(hào)：1389080