啁啾信号在水下违规抛泥监测系统中的应用

doi:10.16182/j.issn1004731x.joss.201705010

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (5): 1005-1013.doi: 10.16182/j.issn1004731x.joss.201705010

啁啾信号在水下违规抛泥监测系统中的应用

钟张婷¹, 袁飞¹, 汪佳乐², 程恩¹

1.水声通信与海洋信息技术教育部重点实验室(厦门大学),厦门 361005;
2.厦门港口管理局安全监督与科技信息化处,厦门 361005

收稿日期:2015-03-23 修回日期:2015-07-05 出版日期:2017-05-08 发布日期:2020-06-03
作者简介:钟张婷(1990-),女,畲族,福建龙岩,硕士生,研究方向为水下目标探测;袁飞（1979-）,男,福建福州,博士,副教授,研究方向为水下多媒体传输与处理。
基金资助:
国家自然科学基金(61471308,61571377)

Application of Chirp Signal in Underwater Acoustic Supervision System for Illegal Throwing Sand Behavior Detection

Zhong Zhangting¹, Yuan Fei¹, Wang Jiale², Cheng En¹

1. Key Laboratory of Underwater Acoustic Communication and Marine Information Technology, Ministry of Education, School of Information Science and Technology, Xiamen University, Xiamen 361005, China;
2. Security Management & Technological Innovation and Information Department, Xiamen Port Authority, Xiamen 361005, China

Received:2015-03-23 Revised:2015-07-05 Online:2017-05-08 Published:2020-06-03

摘要/Abstract

摘要： 为找到一种高效便捷的方法判断疏浚船舶是否存在违规抛泥行为,研究了基于啁啾信号探测抛泥行为的方法。设计了3种实现方案：分段FFT(Fast Fourier Transformation)快速相关、FRFT (Fractional Fourier Transform)变换、去斜脉冲压缩。结合五缘湾实验及仿真结果验证了3种方案的可行性,同时发现：FRFT变换抗多径和抗噪性能最佳,而去斜脉冲压缩算法效果最差。通过分析：当多径影响较为严重时,建议使用FRFT算法进行检测;当多径影响较小而对数据实时性处理要求较高的时,建议使用分段FFT快速相关算法进行检测。

关键词: 线性调频信号, 分段FFT快速相关, FRFT变换, 去斜脉冲压缩, 抛沙检测

Abstract: To find an efficient and convenient method to determine whether a dredging is illegal is a very meaningful research content. A method of detection of throwing sand behavior based on Chirp signal was studied and three implementation schemes (subsection FFT fast correlation), FRFT and DeChirp were designed. The feasibility of the three schemes was verified by Wu Yuan Bay experiment and the simulation results. Anti-multipath and anti-noise performance of FRFT transform is the best. The performance of dechirp is the worst. Through the analysis, it comes out the conclusion: when the multipath effect is serious, FRFT algorithm for detection is recommended; When the multipath effect is small and the requirement of the data real-time processing is strict, subsection FFT fast correlation algorithms for detection is recommended.

Key words: chirp signal, subsection FFT fast correlation, FRFT transform, dechirp pulse compression processing method, detection of throwing sand

中图分类号:

TP391

钟张婷, 袁飞, 汪佳乐, 程恩. 啁啾信号在水下违规抛泥监测系统中的应用[J]. 系统仿真学报, 2017, 29(5): 1005-1013.

Zhong Zhangting, Yuan Fei, Wang Jiale, Cheng En. Application of Chirp Signal in Underwater Acoustic Supervision System for Illegal Throwing Sand Behavior Detection[J]. Journal of System Simulation, 2017, 29(5): 1005-1013.

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啁啾信号在水下违规抛泥监测系统中的应用

Application of Chirp Signal in Underwater Acoustic Supervision System for Illegal Throwing Sand Behavior Detection

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