For the sake of anti-forecast two new design desires of sensitivity of hopping sequences to time of date ( TOD ) and address code are put forward .

为了对抗预测，跳频码序列应提出两个新的设计要求，对 TOD敏感和对 地址 码敏感。

It is the first time to propose a combinatorial encoding / decoding scheme . The basic principle that includes the code generation and recognition the architecture of encoder and decoder and the design method of address code is investigated .

首次研究了一种新型的组合编解码方法，介绍了码片产生与识别、编解码器结构、 地址 码构造等基本理论。