Adaptive array thinning for space-time beamforming
Adaptive array thinning for space-time beamforming
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DOI：
10.1109/acssc.1999.832013
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发表时间：
1999-10
期刊：
影响因子：
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通讯作者：
A. Sarajedini
中科院分区：
文献类型：
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作者：
A. Sarajedini
空时阵列处理（STAP）是一项计算量很大的任务，因为涉及的矩阵很大。减少这种计算负担的一种方法，称为阵列细化，是不处理特定的空间和/或时间节拍。我们提出了一种考虑干扰环境的阵列减薄技术，并对阵列进行了优化减薄。在线性约束最小功率法（LCMP）中，细化单元是约束条件。我们还提出了一种贪心版本的LCMP方法，以更低的计算负担产生可比的结果。从干扰抑制和计算量两方面进行了性能比较。
Space-time array processing (STAP) is a computationally intensive task because of the large matrices involved. One method, called array thinning, for reducing this computational burden is to not process certain space and/or time taps. We propose a technique for array thinning that accounts for the interference environment and thins the array optimally. The thinned elements are constraints in the linearly constrained minimum power (LCMP) method. We also propose a greedy version of the LCMP method that produces comparable results with lower computational burden. Performance comparisons are given in terms of interference suppression and the computational burden.