【摘要】 首先介绍了PCMA技术的基本概念 ,并建立了PCMA系统基带传输模型 ;在此基础上研究了PCMA系统中位同步误差对干扰抵消性能的影响 ,并给出了相应的仿真结果。根据系统对干扰抑制比的要求 ,仿真结果可以为位定时估计算法的设计提供可靠的依据更多还原

【Abstract】 Equivalent base-band model of PCMA system is built after a brief description of the basic conception of the PCMA technology. Interference cancellation performance degradation caused by timing error in PCMA System is then analyzed and simulated. Depend on the simulation results,appropriate symbol-timing-recovery scheme can be designed to satisfy the desired interference-suppression-ratio of the system.更多还原