Space - time coding technology is based on multi - elements antenna array and has strong points of both time processing and space processing . it can satisfy the requirements of high data rate transmission in the future radio mobile system without the increase of the transmitting power and the spread of the frequency . and it can greatly improve the quality of communication services and system capacity under fading channels 空時編碼技術(shù)是一種利用多天線陣發(fā)送和接收的技術(shù),該技術(shù)能很好地結(jié)合時間處理技術(shù)和空間處理技術(shù)的特點,能在不增大發(fā)射功率和不擴(kuò)展頻帶的前提下滿足未來無線移動通信對高數(shù)據(jù)率傳輸?shù)囊?,從而全面提高衰落信道的通信質(zhì)量和通信系統(tǒng)容量。