数字调制信号接收技术

为了实现对多种数字信号的解调,设计了一种全数字接收机体制。对通用环载波同步方法及内插滤波码元同步方法进行了深入分析和设计。仿真结果表明,在误比特率为10-4时,所需Eb/N0比理论值高2 dB。基于通用环和内插定时技术的全数字接收机适用于对PSK,QAM数字调制信号的接收解调,满足数字VSLI硬件实现高集成度、小型化接收机的要求。

Receiving Technique for Digital Modulation Signal

All-digital receiver is designed for various digital signals demodulation.A universal loop and interpolating filter are designed and analyzed in detail.The simulation result shows that the needed value of Eb/N0 is the theoretical value plus 2 dB when the BER is 10-4.The all-digital receiver based on technique of universal loop and interpolating filter timing loop suit for PSK and QAM signal demodulation and satisfy the design request of high degree of integration and miniaturization with VSLI hardware.