Design and optimal selection of the DS code based on the modified quantitative method of the invariant distribution threshold
基于改进型不变分布阈值量化方法的直扩码设计及优选

A design for generating DS code, combining the modified quantitative method of the invariant distribution threshold and double-way coupled map lattice based on Tent map, is presented. In order to generate DS code in real-time, an optimal method by presetting the best map parameters and the mode of sequence selection is proposed. Simulation results prove that, the balance of TDCML serials based on the modified method mentioned above is improved while other performances do not decrease, and the utilization percent of TDCML-map is higher. The performance of optimal DS codes selected in real-time has been further improved.