基于Simulink的对偶序列跳频通信链路及门限设计仿真

Simulink-based Dual Sequence Frequency Hopping Communication Link and Threshold Design Simulation

以无线通信为背景,分析对偶序列跳频通信的基本原理和结构模型,由此,利用Matlab/Simulink软件搭建了对偶序列通信链路及门限设计的仿真模型。通过研究信号源发射模型,仿真通信链路在AWGN信道下的门限设计模型,观察模型的仿真波形及误码率情况:双门限结构与单门限结构相比,当信噪比在-20 dB~0 dB范围变化时,误码率降低了2~3个数量级,且当SNR大于-12 dB以上时,系统误码率大小降至零,通信的可靠性良好,对进一步研究对偶序列跳频系统具有参考意义。

Based on wireless communication,this paper analyzes the basic principle and structural model of dual-sequence frequency hopping communication.Therefore,a simulation model of dual-sequence communication link and threshold design is built using Matlab/Simulink software.By studying the signal source emission model,the threshold design model of the communication link under the AWGN channel is simulated,and the simulated waveform and bit error rate of the model are observed:the dual-threshold structure is compared with the single-threshold structure,when the range of signal-to-noise ratio is-20 dB~0 dB,the bit error rate is reduced by 2 to 3 orders of magnitude.When the SNR is greater than-12 dB,the system bit error rate drops to zero,and the reliability of communication is good.It is a reference for further research on dual sequence frequency hopping systems.