文章分析和研完了软调频(TFM)信号的Viterbi接收机,通过简化处理,导出了适合于接收TFM信号的接收机结构模型,以此模型为基础,对系统及其同编码相结合的误码性能进行了计算机模拟。结果表明:该系统能获得至少3～4dB的性能增益。 After analyzing and finishing the Viterbi receiver of soft frequency modulation (TFM) signal, the receiver structure model suitable for receiving TFM signal is derived by simplifying the processing. Based on this model, the error code of the system and its combination with the coding Performance was simulated by computer. The results show that the system can achieve at least 3 ~ 4dB performance gain.