扩频通信是现代通信系统中的一种新兴通信方式,具有较强的抗干能力,提出一种适用于高速跳频加直扩混合扩频系统的同步技术以及混合系统的实现方案。本系统基于编码扩频的理论,利用数字匹配滤波器一次性完成系统直扩信号的同步和解码,大大缩短系统同步时间,简化电路设计。同时,在跳频过程中采用宽间隔跳频图案进一步提高了系统的抗干扰性能,合理利用资源,对实际系统的开发和设计具有一定的应用价值。
Spread spectrum communication system is one of the modern communication systems, which has a strong anti-jamming ability. A DS/FH hybrid spread spectrum communication synchronization technology and system scheme is analyzed. The system is based on coded spread spectrum communications. DMF is used for spread signal's synchronization and decoding, which reduces the synchronizing time and simplifies the design of the system. Wide interval FH technology improves the performance of the system in noise environments. Besides rational use of resources, the study will contribute to communication system development.