| 基于FPGA的宽带多普勒测速声纳数字系统的设计与实现 |
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| 引用本文： | 杨威,李迪,赵极远.基于FPGA的宽带多普勒测速声纳数字系统的设计与实现[J].电子技术应用,2012,38(6):13-14,17. |
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| 作者姓名： | 杨威 李迪 赵极远 |
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| 作者单位： | 哈尔滨工程大学水声工程学院,黑龙江 哈尔滨,150001 |
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| 摘 要： | 针对多普勒测速声纳的高精度要求,采用宽带发射信号和相控阵波束形成技术,并利用FPGA在数据处理方面高速、并行、实时的特点,在以Altera StratixII EP2S60F484I4 FPGA为核心的系统上设计了宽带多普勒测速声纳数字系统,实现了采样控制及带通滤波、波束形成、相关运算等信号处理算法。测试结果显示,宽带信号能够更好地满足声纳系统高精度要求。
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| 关 键 词： | FPGA 宽带信号 多普勒测速 声纳 |
Design and implementation of the digital system of broad band Doppler velocity measuring sonar based on FPGA |
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| Yang Wei
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Li Di
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Zhao Jiyuan.Design and implementation of the digital system of broad band Doppler velocity measuring sonar based on FPGA[J].Application of Electronic Technique,2012,38(6):13-14,17. |
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| Authors: | Yang Wei Li Di Zhao Jiyuan |
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| Affiliation: | (College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | To meet the high precision of the doppler velocity measuring sonar,the broad band transmitting signal and phasedarray are used,also with the high speed,parallel,real-time characteristic of processing data by FPGAs,the digital system of the Doppler velocity measuring sonar is designed and implemented on the core of Altera ’s StratixII EP2S60F484I4 FPGA,the sampling control,band-pass filtering,beam forming,correlation operation and other signal processing algorithms have been realized.Mean-while,the test results show that the broad band signal can meet the high precision of sonar system better. |
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| Keywords: | FPGA broad band signal Doppler velocity measuring sonar |
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