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 空時編碼技術是一種利用多天線陣發送和接收的技術,該技術能很好地結合時間處理技術和空間處理技術的特點,能在不增大發射功率和不擴展頻帶的前提下滿足未來無線移動通信對高數據率傳輸的要求,從而全面提高衰落信道的通信質量和通信系統容量。