A CHANNEL ESTIMATION METHOD OF THE MOBILE COMMUNICATION SYSTEM BASED ON THE TIME DIVISION PILOT FIELD

摘要

A channel estimation method of the mobile communication system based on the time division pilot field includes following steps: step 1, the transmitting end transmitting the time division pilot sequence including the cyclic prefix; step 2, the receiving end transforming the time division pilot sequence to the frequency domain using the fast fourier transform module, and estimating the channel to obtain the channel frequency response estimation result; step 3, the receiving end transforming back the channel frequency response estimation result to the time domain using the inverse fast fourier transform module, and obtaining the channel impulse response estimation result. The present invention has less complexity than the conventional time domain channel estimation calculation, so the system time delay caused by channel estimation can be reduced.