固有値分解を行わないセンサアレーによる高分解能な信号到来角推定

概要

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High resolution detection-estimation algorithms for the direction of arrival (DOA) of signals in antenna arrays have recently received much attention. However, near optimal performances rely on heavy computational load due, to data correlation eigendecompositions. A new algorithm consistent even for coherent signals with no eigendecomposition, which decreases appreciably the calculations without degrading too much performances is presented. The basic transformation used is the complex QR decomposition of data vectors for which many known parallel and on-line updating algorithms for real time processing exist. This makes it a good candidate for mobile cellular communications systems applications. Some simulation examples comparing performances are provided.
社団法人電子情報通信学会の論文
1995-09-05