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。
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.
出处
《应用声学》
CSCD
北大核心
2006年第1期48-54,共7页
Journal of Applied Acoustics
