海浪对水下甚低频最小频移键控信号解调的影响  

Influence of sea waves on MSK signal demodulation of VLF in the sea water

作　　者：陆洪[1] 潘威炎[1] 

机构地区：[1]中国电波传播研究所,山东青岛266107

出　　处：《电波科学学报》2011年第4期731-734,共4页Chinese Journal of Radio Science

摘　　要：在对潜通信中,甚低频(VLF)最小频移键控(MSK)调制信号是通常使用的信号形式。由于海浪的浪高与甚低频电波在海水中的波长可比拟,所以海浪对通信的影响不可忽视。在考虑海浪和高斯噪声影响的情况下,用计算机仿真给出MSK差分解调的误码率,分析了海浪波高和信噪比对通信解码误码率的影响。Minimum shift keying（MSK） signal of very low frequency （VLF） wave is usually employed in submarine communication. The influence of sea waves oncommunication can not be ignored because of the height of sea wave and the wavelength of VLF wave in sea water are comparative. In this paper, the bit error rate（BER） of differential demodulation is obtained by computer simulation in consideration of sea waves and Gaussian noise. The effect of the height of sea wave and sig-nal-to-noise ratio （SNR） to BER on communication is analyzed luther.

关 键 词：海浪 波高 MSK 误码率 信噪比 

分 类 号：TN929.3[电子电信—通信与信息系统]