This paper proposes a bootstrap equalizer for MIMO channel time-variation suppression.The decorrelating equalization algorithm for MIMO communication system is proposed firstly

which realizes the decorrelation of the distinct source signals based on the statistics of source signals and therefore suppresses co-channel interference in MIMO system.Then this algorithm is introduced to the time-varying MIMO system and derives the bootstrap equalizer for MIMO channel time-variation suppression

which equalizes the time-varying MIMO channel only by its inputs

and greatly suppresses the time-variation-induced co-channel interferences in ordinary equalizer's output and improves the system BER performance at the cost of only a little additional computational complexity.Simulation results demonstrate that the proposed decorrelating MIMO bootstrap equalizer curbs the influence of the channel time-variation and effectively improves the BER performance of the receiver.