Improving RFM autocorrelation performance of Tent sequence and holding its good autocorrelation performance

Chaotic sequences have been widely used as pseudorandom sequences. Although some well known chaotic sequences have good autocorrelation performance, but after modulation, autocorrelation performance become poor, such as Tent sequence, so their applications are limited. Based on recently presented APAS theorem, we modified Tent map to DS-Tent map, and DS-Tent sequence has excellent RFM autocorrelation performance and simple structure, whereas its other performances are remained invariant or become better, especially its good autocorrelation performance are remained invariant, and can be used more widely.