Subspace-Based Semi-Blind Channel Estimation for OFDM
Deng Yun-hao · Aerospace Shanghai · 2010
An improved semi-blind channel estimation algorithm based on subspace which was fit to the background of color noise was put forward in this paper.According to the mode of orthogonal frequency division multiplexing system,the impulse response of the channel was estimated using the impulse response character of noise vector acquired with the matrix of the impulse response channel in the color noise environment.The steps of the algorithm were presented.The simulation results showed that the algorithm had good convergence rate and stability.