To satisfy the unique request of PN sequences optimization,the paper proposes a scheme in which a set of shift sequences of one m-sequence are used as SS code in radio navigating system.

• 针对无线电测距对扩频码的特殊要求,通过对传统的扩频码的比较分析,提出在无线电导航系统中引入移位序列作为扩频地址码。