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当采用高斯滤波的方法对全波形激光雷达回波数据去噪处理时,高斯函数宽度和高斯滤波模板长度不同,去噪效果不同。本文通过设定不同的高斯函数宽度和高斯滤波模板长度,对回波信号进行去噪处理。实验结果表明,将激光雷达的发射脉冲半宽作为高斯函数宽度,高斯滤波模板长度设为9,对回波数信号进行去噪处理,滤波后的数据既保留了原有的信息,又得到了很好的平滑处理,取得了较为理想的去噪效果。
When the Gaussian filter method is used to denoise the full-wave lidar echo data, the Gaussian function width and the Gaussian filter template length are different, and the denoising effect is different. In this paper, by setting different Gaussian function width and Gaussian filter template length, the echo signal is denoised. The experimental results show that the half-width of the transmitting pulse of the laser radar is Gaussian function width, the Gaussian filter template length is set as 9, and the echo number signal is denoised. The filtered data not only retains the original information but also obtains the Good smoothing, and achieved a more ideal denoising effect.