| 基于FPGA的光纤水听器PGC解调算法实现 |
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| 引用本文： | 陈宇,李平. 基于FPGA的光纤水听器PGC解调算法实现[J]. 应用声学, 2006, 25(1): 48-54 |
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| 作者姓名： | 陈宇 李平 |
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| 作者单位： | 中国科学院声学研究所声场声信息国家重点实验室,北京,100080 |
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| 摘 要： | 针对干涉型光纤水听器信号的PGC（Phase Generated Carrier，相位产生载波）数字化调制解调原理，提出一种基于FPGA（Field Programmable Gate Array，现场可编程门阵列）的实现方案。相比基于DSP的实现方案，该方案可将处理系统的采样率提高1—2个量级，从而大大提高可处理水声信号的上限频率，提高系统的抗混叠能力。
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| 关 键 词： | PGC解调 采样率 |
| 收稿时间： | 2004-09-23 |
| 修稿时间： | 2004-09-232005-01-14 |
FPGA-based implementation of PGC demodulation algorithm for fiber optic hydrophone |
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| CHEN Yu and LI Ping. FPGA-based implementation of PGC demodulation algorithm for fiber optic hydrophone[J]. Applied Acoustics(China), 2006, 25(1): 48-54 |
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| Authors: | CHEN Yu and LI Ping |
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| Affiliation: | State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | According to PGC demodulation algorithm for fiber optic hydrophone, a hardware implementation based on FPGA is presented. Comparing with the current demodulation systems based on DSPs, the processing speed is one to two orders faster, so that the performance and the ability of anti-aliasing are significantly increased. A conclusion is drawn that an FPGA-based system for signal processing of fiber optic hydrophone is a solution with high capacity and high anti-overlapping ability. |
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| Keywords: | FPGA |
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