radio communication technique

Nowadays, the software radio has become a technique hot spot in the radio com-munication field, especially in the military radio communication field.

目前，软件无线电技术已成为无线电通信领域，特别是军用无线电通信领域的技术热点。

With the rapid development of the communication technique and the growing demand of the markets, the better performance of radio-frequency (RF) wireless receivers is requested.

随着现代通信技术的飞速发展和市场需求的不断提高，对射频接收机的性能提出了更高要求。

The CDMA based on the radio frequency spread technique has been a very attractive multiple access technique in the radio communication field since 1990.

以无线扩频通信技术为基础的CD ma技术，是进入90年代以来无线通信领域十分引入注目的多址通信技术。