摘要
直接序列扩频通信技术具有抗多径干扰等许多优点,跳频通信技术具有很强的抗部分带宽干扰的能力.结合这两种通信技术的特点,重点介绍了一种由m序列和Walsh函数构成的DS-FH混合扩频系统,该系统利用Walsh函数的频谱特性实现跳频,同时具有直扩技术和跳频技术的优点,并且实现简单.在系统实现中扩频码和跳频图案的产生部分用CPLD来完成,并对此进行了详细的介绍.
This paper introduced the design and realization of DS-FH mixed spread spectrum communication system, which is constructed by m sequence and Walsh code. In this system, CPLD is used to finish the generation of m sequence and the frequency hopping logic of Walsh code, which is controlled by m sequence. There is a detailed discussion about them in this paper.
出处
《应用科技》
CAS
2003年第12期7-9,共3页
Applied Science and Technology
基金
黑龙江省自然科学基金资助项目(F200037).