基于时钟和地址的跳频序列的产生和性能分析

在一般跳频系统中，跳频序列是由递归算法产生的，如PN序列以及混沌序列、模糊序列等。本文介绍的基于时钟和地址的跳频序列提供了一种新的产生方法。这种序列是由长比特设备地址和不断变化的长比特时钟信息经过一系列运算而产生的，即基于时钟和地址和跳频序列，该序列具有理想的均匀频谱特性和很长的周期；序列线性跨距很长，不容易被智能干扰机干扰；序列的汉明相关特性也很好；这个特点在多址接入通信中非常有用。该序列另一个重要特征是硬件实现简单容易，事实上，这种序列巳成功应用于蓝牙跳频系统中。本文主要介绍这种跳频序列的设计产生过程，并对序列的各种性能进行分析。

Design and Performance Analysis of Clock and Address Based Frequency Hopping Sequence

In general frequency hopping system, the sequence is generated from some recursion algorithms such as PN code, chaos sequence, fuzzy sequence, etc.. Clock and address based sequence may provide a novel method. It is based on long bits of device address and long bits of clock which is going forever. Such sequence has ideal uniform distribution of spectrum and long period; Its linear span is also very large, so it is hard for an eavesdropper to predict even if the generation rule is public. Hamming correlation property is also good whose property is very useful in multiple access applications. Another important property is that the sequence can be easily realized with simple hardware. In fact, such sequence has been successfully used in Bluetooth FH systems. In this paper,steps of how to construct such hopping sequence are mainly presented, the properties of the sequence are also analyzed.