一種新的信號多參數(shù)估計方法
A NOVEL METHOD FOR SIGNAL PARAMETERS ESTIMATION
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摘要: 本文基于圓陣列及其輸出時延提出了一種空間信號頻率、方位角和仰角的聯(lián)合參數(shù)估計新方法。此方法回避了多維譜峰搜索和參數(shù)配對,克服了在短數(shù)據(jù)時離散傅立葉變換測頻分辨率低和性能差的不足。計算機模擬證實了該方法的有效性。
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關(guān)鍵詞:
- 圓陣列; 頻率; 方位角; 仰角
Abstract: Based on uniform circular array and its elements output signal delay, a novel method for estimation of spatial frequency, azimuth and elevation is presented. Without any spectral peak search and parameters pairing, the resulting method is computationally efficient with high resolution and small variance, even in the short data length. Computer simulation demonstrates the effictiveness of this method. -
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