FPGA和DSP平台惯性传感器信号小波处理

Wavelet processing for signal of inertial sensor based on FPGA and DSP

为了满足光电跟踪系统对激光陀螺信号去噪处理提出的高实时性要求,对小波阈值消噪算法的特点进行分析,提出一种基于FPGA和DSP的硬件平台实现此滤波算法,达到了高实时滤波的要求,且滤波效果明显。实验结果表明,设计的硬件系统对单频率和多频率噪声都具有去噪功能,并将输出延时降低在15μs以内。

To meet the high speed processing requirement of laser gyro signals in electrooptical tracking system, wave let transform algorithm is designed and analyzed. It is carried out on a hardware platform of FPGA and DSP. The filter achieves realtime and good filtering result. The experiment results verify that the system can filter both unifrequency noise and multifrequency noise and the output delay time is within 15 p^s.