| 王佳楠,王茂法,薛欢欢.一种低失真度多普勒测速仪回波模型的构建和分析研究[J].声学技术,2021,40(3):347~352 |
| 一种低失真度多普勒测速仪回波模型的构建和分析研究 |
| Construction and analysis of a low distortion DVL echo model |
| 投稿时间：2020-03-20 修订日期：2020-05-11 |
| DOI：10.16300/j.cnki.1000-3630.2021.03.008 |
| 中文关键词: 多普勒测速仪(DVL) 海底回波 信号处理 扇环形 |
| 英文关键词: Doppler velocity log (DVL) the seabed echo signal processing fan ring |
| 基金项目:浙江省属高校基本科研业务费专项资金资助（GK199900299012-026）。 |
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| 中文摘要: |
| 为了支撑研究并评估多普勒测速仪（Doppler Velocity Log，DVL）信号处理算法的性能，需模拟海底回波信号，故需构建失真度低的海底回波模型。文章提出了扇环形海底回波模型，在此基础上，构建了一种基于散射理论的海底回波优化模型。将此优化模型和传统模型进行了对比分析，结果表明，优化模型较传统模型，与真实海底回波之间的包络特性误差更小，宽带回波的包络特性误差降低了20%以上，验证了所构建的回波模型的有效性和优越性。 |
| 英文摘要: |
| In order to support research and evaluate the performance of the Doppler velocity log (DVL) signal processing algorithm, the seabed echo signal needs to be simulated, so a low-distortion seabed echo model needs to be constructed. A fan-ring shaped seabed echo model is proposed in this paper, and on this basis, an optimized model of seabed echo based on scattering theory is constructed. A comparative analysis of the optimized seabed echo model and the traditional model is carried out. The study results show that the optimized model has a smaller error in envelope characteristics relative to the real seabed echo than the traditional model, especially the envelope characteristic error of broadband echo is reduced by more than 20%. The effectiveness and superiority of the constructed echo model is verified. |
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