当前位置: 首页 > 文章 > 水声扩频通信系统的传输误码率研究 浙江海洋学院学报(自然科学版) 2016,35 (4) 326-331
Position: Home > Articles > Research on Transmission BER of Underwater Acoustic DSSS Journal of Zhejiang Ocean University(Natural Science) 2016,35 (4) 326-331

水声扩频通信系统的传输误码率研究

作  者:
蔡晓冬;宗振;刘玉良
单  位:
浙江海洋大学船舶与机电工程学院
关键词:
扩频通信;噪声类型;扩频码速率;误码率
摘  要:
扩频通信技术具有较好的抗干扰和抗多径的能力,而水声通信信道具有噪声干扰大、多径效应强的特点,因此扩频通信技术在水声通信中占有非常重要的地位。本文首先分析水声扩频通信系统中不同类型噪声对系统的影响,以及特定类型噪声影响下,采用不同扩频码速率对系统性能的影响;然后用MATLAB仿真工具,对上述分析结果进行仿真验证。最后得出的结论为:在各类水声信道下,用扩频通信系统传输信号,采用不同的扩频码速率将会对通信性能产生不同的影响。
译  名:
Research on Transmission BER of Underwater Acoustic DSSS
作  者:
CAI Xiao-dong;ZONG Zhen;LIU Yu-liang;School of Naval Architecture and Mechanical-Electrical Engineering of Zhejiang Ocean University;Key Laboratory of Offshore Engineering and Technology of Zhejiang Province;
关键词:
direct sequence spread spectrum;;noise type;;spread spectrum code rate;;bit error rate
摘  要:
Spread spectrum communication system has well ability to anti-jamming and resist multipath.Most underwater acoustic communication channel has the characteristics of large noise interference and strong multipath effect, so the spread spectrum communication technology occupies a very important position in un-derwater acoustic communication. This paper have analyzed the influence of types of channels with different noise to the underwater acoustic DSSS. And studied the influence of different spreading code rates to system BER witch with a certain type of underwater acoustic channel. Then, used the SIMULINK simulation platform of MATLAB to verification conclusion. Finally, it is concluded that under different noise channels, transmit by DSSS, different spreading code rates will have different effects on the communication performance.

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