基于逆QR分解的RELS参数估计及其并行实现

A Method of RELS Parameter Estimation Based upon Inverse QR Decomposition and Its Parallel Implementation

直接ＱＲ分解法是一种非常稳定的方法，且其旋转计算极易映射到Ｓｙｓｔｏｌｉｃ阵列，但需计算量很大的回代步骤。逆ＱＲ分解则不需回代，而且保留了直接ＱＲ分解法的优点。将逆ＱＲ分解法应用于递推增广最小二乘估计，并给出了相应的Ｓｙｓｔｏｌｉｃ阵列用于并行实现。

Direct QR decomposition method is inherent stable and its rotation computation is easily mapped into Systolic array. However, it needs backsubstitution step with numerous serial calculations. Inverse QR decomposition method avoids the backsubstitution step while the stability properties of direct QR method is maintained. The inverse QR method are applied to the problem of RELS parameter estimation and a Systolic array for parallel implementation is shown in this paper.