Numerically stable and efficient algorithm for vector channel parameter and frequency offset estimation

초록

In this paper, we present a novel nad numerically efficient algorithm for vector channel and calibration vector estimation, which works when frequency offset error caused by either unstable oscillator or Doppler effect is present in Spread Spectrum antenna system. We propose an estimation algorethm based on Gauss-Seidal algorithm rather than using engen-decomposition or SVD in computing eigen-calues and eigen-vectors at each iteration. The algorithm is based on the two step procehures, one for estimating both channel and frequency offset and the other for estmating the unknown array gain and phase.