摘要
针对非合作跳频信号的实时解调难题,文中搭建了以多核DSP TMS320C6678为核心的跳频信号实时处理系统,基于MSK信号的非相干解调原理,利用多DSP核的同步通信、任务调度和软件优化,并行完成了多个不同码元速率的跳频网台信号实时解调。测试结果表明,文中所提出的多核DSP设计方法能够有效提升跳频信号实时解调性能。
We build a real-time demodulating system for non-cooperative frequency-hopping(FH)signals with multi-core DSP TMS320 C6678 as the core. Based on the non-coherent MSK demodulation algorithm,we can achieve simultaneous demodulation for several FH network signals with different symbol rates through synchronous communication,task schedule and software optimization. The test results show that the proposed multi-core DSP design can effectively improve FH signal demodulation performance.
作者
李辉
LI Hui(Science and Technology on Communication Information Security Control Laboratory,Jiaxing 314033,China;No.36 Research Institute of CETC,Jiaxing 314033,China)
出处
《电子设计工程》
2020年第1期158-163,共6页
Electronic Design Engineering
关键词
跳频信号
多核DSP
MSK解调
非相干
frequency-hopping signal
multi-core DSP
MSK demodulation
non-coherent
