摘要
针对低信噪比(Signal to Noise Ratio,SNR)环境下的数字通信系统性能问题,提出一种结合差分相移键控(Differential Phase Shift Keying,DPSK)调制和Turbo码纠错的通信方案。主要介绍Turbo码和DPSK的基本原理,分析它们在低信噪比环境下的优势,设计一系列仿真实验,使用MATLAB作为仿真平台,在加性高斯白噪声信道中评估结合方案性能。实验结果表明,在低信噪比条件下,该方案能够满足通信系统的性能需求,具有较低的误码率(Bit Error Rate,BER)和误帧率(Frame Error Rate,FER),从而实现可靠的数字通信。通过分析实验结果,验证了所提出方法的有效性,为低信噪比环境下的通信系统提供了一种优化方案。
Aiming at the performance of digital communication systems in low Signal to Noise Ratio(SNR)environments,the article proposes a communication scheme that combines Differential Phase Shift Keying(DPSK)modulation and Turbo code error correction.The basic principles of Turbo code and DPSK are mainly introduced,their advantages in low SNR environments are analyzed,and a series of simulation experiments are designed to evaluate the performance of the combined scheme in additive Gaussian white noise channels using MATLAB as the simulation platform.The experimental results show that the scheme is able to meet the performance requirements of the communication system under low SNR conditions with low Bit Error Rate(BER)and Frame Error Rate(FER),thus realizing reliable digital communication.By analyzing the experimental results,the effectiveness of the proposed method is verified,and an optimization scheme is provided for communication systems in low SNR environments.
作者
闫茜茜
YAN Xixi(Zhengzhou University of Industrial Technology,Zhengzhou 451100,China)
出处
《通信电源技术》
2023年第20期162-164,共3页
Telecom Power Technology
