A noise suppressing channel estimation for MB-OFDM UWB systems based on reticulation pilot

摘要

A noise suppressing channel estimation algorithm based on reticulation pilot is proposed in this paper for multi-band OFDM ultra wide-band communications. In this algorithm, reticulation pilot is used to avoid interpolating in frequency domain. Then time-sliding average and basis pursuit are used in time domain and frequency domain respectively to reduce the influence of noise, which improves the performance effectively. Simulation result demonstrates that the new algorithm has good performance in slow fading channel.