| m伪随机序列在声相关计程仪中的应用研究 |
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| 引用本文： | 范敏毅,惠俊英,艾宇慧.m伪随机序列在声相关计程仪中的应用研究[J].应用声学,2000,19(2):14-18. |
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| 作者姓名： | 范敏毅 惠俊英 艾宇慧 |
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| 作者单位： | 哈尔滨工程大学哈尔滨 150001 |
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| 摘 要： | 本文通过立声相关计程仪的海底混响回波模型，将脉冲信号调制在伪随机序列中作为发射信号，对在低航 速下的声相关测速性能进行了计算机仿真研究。
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| 关 键 词： | 声相关计程仪 伪随机序列 测速性能 航速检测 |
Application of m pseudo-random serial to an acoustic correlation log |
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| Fan Minyi,Hui Junying and Ai Yuhui.Application of m pseudo-random serial to an acoustic correlation log[J].Applied Acoustics,2000,19(2):14-18. |
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| Authors: | Fan Minyi Hui Junying and Ai Yuhui |
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| Institution: | Harbin Engineering University, Harbin 150001;Harbin Engineering University, Harbin 150001;Harbin Engineering University, Harbin 150001 |
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| Abstract: | in this paper, performance of an acoustic correlation log has been simulated based on the model of reverberation from sea bottom, using m pseudo-random serial to modulate CW pulse signal. According to the results of the simulation, under the low ship's velocity, m pseudo-random serial can obviously improve CW pulse signal's performance of velocity estimation. The m pseudo-random serial of phase modulation is superior to that of amplitude modulation in the accuracy of estimating ship's velocity. The m pseudo-random serial of amplitude modulation has beneficial anti-noise effect. |
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| Keywords: | Acoustic correlation log Pseudo-random serial Improving performance of estimating ship's velocity anti-noise |
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