摘要
直接扩频通信系统中载波同步环节的相关解调对于系统性能具有极大的影响作用。以往的系统中经常可能出现载波同步准确率低的情况。对于直接扩频通信系统载波同步环节,通过Simulink仿真进行研究改进,在信号进入载波同步环节后进行Kalman线性滤波,尽可能地去除噪声部分影响。通过搭建科斯塔斯环进行相关载波的提取,最终观察系统仿真误码率,发现改进后的系统误码率更低,具有更好的通信传输性能。
Carrier synchronization link in direct spread spectrum communication system of demodulation and has great effect on sys⁃tem performance in the previous system often possible carrier synchronization accuracy low carrier synchronization link for direct spread spectrum communication system,through the simulink to study the improvement of the signal into the carrier synchroniza⁃tion tache of the kalman linear filtering,as far as possible,get rid of the noise of the part by structures,the extraction of costas loop for related carrier,the final observation system simulation error rate,found that the improved system bit error rate lower,has better communication transmission performance.
作者
高红兵
任世杰
丁季
刘宸岐
王法虎
孙童
GAO Hong-bing;REN Shi-jie;DING Ji;LIU Chen-qi;WANG Fa-hu;SUN Tong(College of Physics Science and Information Engineering,Liaocheng University,Liaocheng 252000,China)
出处
《电脑知识与技术》
2020年第26期13-16,共4页
Computer Knowledge and Technology
基金
聊城大学大学生创新创业训练计划资助项目(校级项目编号cxcy2019y199/国家级编号201910447017)。
