Optimum beamformers for monopulse angle estimation using overlapping subarrays

Ta-Sung Lee, Tser Ya Dai

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

We here derive the optimum sum and difference beamformers for monopulse target localization using a linear array. The beamformers are constructed, treating as superelements two overlapping subarrays. Removing the common factor associated with the superelement pattern from the angle error function leads to a closed-form target angle estimator independent of any adaptive nulling performed. Performance analysis of the angle estimator is conducted, and a procedure is developed to construct the beamformers, which achieve the minimum estimation variance under Gaussian noise. It is shown that the optimum angle estimator using the maximum overlapping subarrays is efficient for a moderately high signal-noise ratio (SNR) and a small off-boresight angle. The proposed method can be easily modified to incorporate interference cancellation.

原文English
文章編號299564
頁(從 - 到)651-657
頁數7
期刊IEEE Transactions on Antennas and Propagation
42
發行號5
DOIs
出版狀態Published - 五月 1994

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