一種基于三階矩的方向估計(jì)方法
BEARING ESTIMATION BY USE OF THIRD-ORDER CUMULANTS
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摘要: 如何在信號(hào)源相干和噪聲空間相關(guān)的情況下實(shí)現(xiàn)目標(biāo)方向的高分辨,是當(dāng)前陣列信號(hào)處理領(lǐng)域必須解決的問題之一。本文提出了一種基于空間三階矩的方向估計(jì)方法。這種方法在處理時(shí),與信號(hào)源間是否相干、接收噪聲是否空間相關(guān)均沒有關(guān)系。在空間三階矩已知的情況下,它可以分辨空間任意接近的信號(hào),從而實(shí)現(xiàn)了信號(hào)源相干和噪聲空間相關(guān)情況下的高分辨處理。
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關(guān)鍵詞:
- 陣列信號(hào)處理; 方向估計(jì); 三階矩
Abstract: A novel algorithm based on the spatial third-order cumulants is presented. This algorithm is independent of the coherence of signals and the correlaton of the additive noises with high resolution. The simulation results demonstrate the effectiveness of this scheme. -
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