摘要
8PSK是一种高带宽效率的多相位键控调制解调技术,在高速数据传输领域具有广阔的应用前景。对Gardner算法和PFD频相联合检测算法进行了仿真研究,给出了实现8PSK全数字解调器符号同步和载波同步的完整结构。在XILINX公司的ISE环境下,用Verilog语言设计实现了8PSK全数字解调器。对该8PSK解调器的解调性能进行了测试,在误码率为10-6时,解调损失小于1 dB。
8PSK is a multiphase shift key modulation and demodulation technology with high-bandwidth efficiency which has great application prospect in the field of high speed data transmission. A simulation study about the Gardner algorithm and the phase and fre-quency detectors （ PFD） algorithm is conducted and the complete structure of symbol timing synchronization and carrier synchronization in 8PSK all-digital demodulator is presented in the paper. The 8PSK all-digital demodulator is designed and implemented by Verilog codes in ISE of XILINX. Finally,the demodulation performance of 8PSK demodulator is tested and the results show that the the demod-ulation loss is less than 1 dB when the BER is equal to 10-6 .
出处
《无线电工程》
2014年第11期73-76,共4页
Radio Engineering
基金
国家部委基金资助项目
关键词
8PSK解调器
符号定时同步
载波同步
8PSK demodulator
symbol timing synchronization
carrier synchronization
