一类改进的随机平移替代法构造的宽间隔跳频序列

为了进一步提高随机平移替代法的性能，提出了基于m序列的一类改进的宽间隔跳频序列的构造方法。基于MATLAB对比分析了用该方法和随机平移替代法产生的跳频序列的周期性、归一化自相关特性、归一化互相关特性、频隙数及平均跳频间隔等性能指标。结果表明，该方法产生的跳频序列的各项性能均优于随机平移替代法，序列的随机性和抗破译性得到了进一步提高。

Frequency hopping sequences with given minimum gap generated by improved random shift replace method

In order to improve the performance of the random shift replace method, a new class of improved frequency hopping sequence with given minimum gap based on m-sequence is proposed.Two frequency hopping sequences are generated respectively by the new method and random shift replace method based on MATLAB. Cyclicities, normalized autocorrelation properties, normalized cross-correlation characteristics, the frequency gap and average hopping interval performance are analyzed. The results show that the every performance of new frequency hopping sequence is superior on random shift replace method, the randomness and anti-decipher ability has been further improved.