基于FPGA的SOQPSK调制方式的设计与仿真  

Design and simulation of SOQPSK modulation schemes based on FPGA

作　　者：代延村[1] 李宇[1] 付泽川[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《电子设计工程》2013年第20期76-78,82,共4页Electronic Design Engineering

摘　　要：SOQPSK是一种恒包络连续相位调制方式。由于其具有频谱利用率高和恒包络特性,这种调制方式适用于发射功率和信道带宽都受限的无线遥测系统中,是新一代遥测体制的最佳选择。本文介绍了SOQPSK的调制原理,通过仿真和比较,分析了SOQPSK中4种方式的仿真波形。同时,讨论用FPGA实现SOQPSK调制方法的具体过程,并给出了仿真结果,验证了其正确性。Shaped Offset Quadrature Phase Shift Keying(SOQPSK) modulation technology has properties of constant envelope and continuous phase. This modulation method, having characteristic of high spectral efficient and constant envelope, is applicable in wireless telemetry systems in which both transmitted power and channel bandwidth is limited. Therefore, it is the best choice for the next generation telemetry systems. The principles of different types of SOQPSK modulation are studied with simulation results compared in this paper. Meanwhile, the realization processes of the mentioned methods based on FPGA are discussed in detail. Simulation results validate its correctness.

关 键 词：成形交错正交相移键控 恒包络 连续相位 FPGA 遥测系统 

分 类 号：TN911[电子电信—通信与信息系统]