Alpha穩(wěn)定分布噪聲下級(jí)聯(lián)恒模陣列及其穩(wěn)定性分析
A Robust Cascade Constant Modulus Array in Alpha-Stable Noise Environment and Its Steady-State Analysis
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摘要: 該文研究Alpha穩(wěn)定分布噪聲下級(jí)聯(lián)韌性恒模陣列的穩(wěn)定性。首先，提出一種新型的信號(hào)對(duì)消器，把本級(jí)陣列捕獲的信號(hào)從接收數(shù)據(jù)中消除，并分析了該對(duì)消器達(dá)到的穩(wěn)定狀態(tài)。然后，以韌性的波束形成器和新型的信號(hào)對(duì)消器組成級(jí)聯(lián)恒模陣列。分析了恒模信號(hào)和Alpha穩(wěn)定分布噪聲在級(jí)聯(lián)恒模陣列間的傳遞情況。數(shù)值仿真驗(yàn)證了理論分析的結(jié)論，并對(duì)級(jí)聯(lián)恒模陣列的多信號(hào)恢復(fù)進(jìn)行了模擬。Abstract: This paper studies the steady-state of a robust cascade constant modulus(CM) array in alpha-stable distribution noise environment. A new signal canceller is proposed to cancel the captured signal by the previous beamformer. The convergence behavior of the canceller weight vector is examined. The behaviors of signals and alpha-stable noise transmitting along the cascade CM array are investigated. Computer simulations are presented to support this theoretical analysis.
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