基于软件无线电的短波SSB收发机

针对传统的单边带电台采用模拟实现技术存在的缺点,采用软件无线电设计思想,以数字信号处理技术为核心,设计了一种短波单边带数字化无线收发机。该单边带收发机采用宽带低通射频采样结构,利用数字上下变频技术实现从基带到射频之间的转换,以及正交调制解调方式。提出了基于现场可编程门阵列（FPGA）硬件平台的收发机设计思路与实现方法,仿真与实验结果表明,所设计的单边带收发机各功能部件均符合设计要求,总体性能也达到预期的效果。

Short-wave SSB Transceiver Based on SDR Techniques

For the technical shortages of traditional SSB transceiver,by introduction of SDR （Software Defined Radio） idea and with DSP technology as the core,a short-wave SSB digitized transceiver is proposed and designed.This transceiver adopts the architecture of RF low-pass sampling,and with DDC （Digital Down Converter） and DUC（Digital Up Converter） techniques,implements the conversion between baseband and RF signal,including quadrature modulation and demodulation.This paper proposes design idea and implementation of SSB transceiver on the FPGA hardware platform.Simulation and experiment show that all the functional components meet of this SSB transceivercould meet the design requirements,and the entire performance gets the very desired result.