介绍了一个基于DMB-TH的自适应调制器的解决方案。经前端信源编码后的TS码流通过高速的串行通信接收器进入调制器模块,调制器模块由FPGA实现对TS码流的随机化、信道编码和调制,其中详细介绍了信道级联编码的实现方法。为了实现自适应,DVB-T射频信号通过天线耦合到变频器电路的前端双工滤波器,再经过处理,变为DMB-TH信号发射出去。 A DMB-TH based adaptive modulator solution is introduced. The TS code stream encoded by the front-end source enters the modulator module through a high-speed serial communication receiver, and the modulator module realizes the randomization, channel coding and modulation of the TS code stream by the FPGA. The channel concatenated coding The realization method. In order to be adaptive, the DVB-T RF signal is coupled to the front-end duplex filter of the inverter circuit through an antenna and then processed to become a DMB-TH signal for transmission.