Adaptive Kalman Filter Designed for Channel Parameter Estimation under OFDM-Signal Reception

摘要

The algorithm for estimating and compensating for the distorted orthogonal frequency-division multiplexing signals is analyzed upon reception over multiray fading channels. The results of its computer simulation are presented. This algorithm is based on a digital Kalman filter that is adapted to channel conditions by estimating the polynomial coefficients of a correlation function and scaling the variance matrix of generating noise.