因为只是仿真物理层的性能，所以只对一个RS交织块进行处理，RS块的大小可为协议中RS的字节交织模式中的规定的三种交织深度。其它调制参数都可选，如RS码率，LDPC码率等。程序最后的输出即为经过CMMB发射调制的OFDM基带数据。-Because it is only the physical layer performance simulation, only the interleaved block for processing an RS, RS block size for the protocol of RS byte interleaving mode specified are interleaving depth. Other modulation parameters are optional, such as RS code rate, LDPC code rate and so on. The output end of the program is transmitted through the CMMB OFDM modulated baseband data.