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将格状编码调制(TCM)技术与数据交织技术相结合,研究在数字传输系统中的传输性能,给出了数据交织与非交织条件下该编码调制技术的计算机模拟结果。模拟结果表明:采用格状编码与交织技术可使信道传输的误码率降低,编码增益提高。
The combination of Trellis-coded Modulation (TCM) technique and data interleaving technique was used to study the transmission performance in digital transmission system. The computer simulation results of the code modulation technique under the condition of data interleaving and non-interleaving were given. Simulation results show that the use of Trellis coding and interleaving techniques can reduce the bit error rate of channel transmission and improve the coding gain.