首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Low-Pass Parabolic FFT Filter for Airborne and Satellite Lidar Signal Processing
【2h】

Low-Pass Parabolic FFT Filter for Airborne and Satellite Lidar Signal Processing

机译:用于机载和卫星激光雷达信号处理的低通抛物线FFT滤波器

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

In order to reduce random errors of the lidar signal inversion, a low-pass parabolic fast Fourier transform filter (PFFTF) was introduced for noise elimination. A compact airborne Raman lidar system was studied, which applied PFFTF to process lidar signals. Mathematics and simulations of PFFTF along with low pass filters, sliding mean filter (SMF), median filter (MF), empirical mode decomposition (EMD) and wavelet transform (WT) were studied, and the practical engineering value of PFFTF for lidar signal processing has been verified. The method has been tested on real lidar signal from Wyoming Cloud Lidar (WCL). Results show that PFFTF has advantages over the other methods. It keeps the high frequency components well and reduces much of the random noise simultaneously for lidar signal processing.
机译:为了减少激光雷达信号反转的随机误差,引入了一种低通抛物线快速傅立叶变换滤波器(PFFTF)来消除噪声。研究了一种紧凑的机载拉曼激光雷达系统,该系统将PFFTF用于处理激光雷达信号。研究了PFFTF以及低通滤波器,滑动平均滤波器(SMF),中值滤波器(MF),经验模态分解(EMD)和小波变换(WT)的数学和仿真,以及PFFTF在激光雷达信号处理中的实际工程价值已验证。该方法已经在来自怀俄明州云激光雷达(WCL)的真实激光雷达信号上进行了测试。结果表明,PFFTF优于其他方法。它可以很好地保持高频成分,并同时减少用于激光雷达信号处理的许多随机噪声。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号