A METHOD OF ESTIMATING NOISE LEVEL IN A FREQUENCY-MODULATION CONTINUOUS-WAVE (FM-CW) RADAR LEVEL GAUGE BASED ON DAUBECHIES WAVELET

机译：基于达贝西小波的调频连续波（FM-CW）雷达液位计噪声水平估计方法

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

The basic principle of FM-CW radar level gauge is analyzed briefly. A method of estimating its beat frequency is proposed based on periodogram. But the frequency-estimation accuracy is mainly determined by signal-noise-ratio (SNR). So a method of estimating noise level of the beat-frequency signal is then proposed based on Daubechies wavelet. Simulation results show that the noise-estimation method is valid in a wide range of noise background and suitable for an on-line use in FM-CW radar level gauge.

机译：简要分析了FM-CW雷达液位计的基本原理。提出了一种基于周期图的拍频估计方法。但是频率估计精度主要由信噪比（SNR）决定。因此，提出了一种基于Daubechies小波估计拍频信号噪声水平的方法。仿真结果表明，该噪声估计方法在宽范围的噪声背景下都是有效的，适合于FM-CW雷达液位计的在线使用。

著录项

来源
《International Computer Congress on Wavelet Analysis and Its Applications, and Active Media Technology vol.1; 200405; Chongqing(CN)》|2004年|P.418-423|共6页
会议地点 Chongqing(CN)
作者
REN KAICHUN; ZHANG XUANQI; Tu Yaqing; Zhang Haitao; Ji Xiaobo;
展开▼
作者单位

Chongqing Communication Institute Chongqing, China, 400035;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类微波与超高频技术;
关键词

相似文献

外文文献
中文文献
专利

1. DAUBECHIES COMPLEX WAVELET TRANSFORM BASED MULTILEVEL SHRINKAGE FOR DEBLURRING OF MEDICAL IMAGES IN PRESENCE OF NOISE [J] . ASHISH KHARE, UMA SHANKER TIWARY, MOONGU JEON International Journal of Wavelets, Multiresolution and Information Processing . 2009,第5期

机译：基于DAUBECHIES复小波变换的多级收缩在噪声情况下的医学图像去噪
2. Decision tree-based method for optimum decomposition level determination in wavelet transform for noise reduction of partial discharge signals [J] . Science, Measurement & Technology, IET . 2020,第1期

机译：基于决策树的小波变换最优分解电平确定方法用于局部放电信号降噪
3. Entropy-Based Method of Choosing the Decomposition Level in Wavelet Threshold De-noising [J] . Dong Wang, Ji-Chun Wu, Yan-Fang Sang Entropy . 2010,第6期

机译：小波阈值去噪中基于熵的分解水平选择方法
4. A Method of Estimating Noise Level in A Frequency-Modulation Continuous-Wave(Fm-Cw)Radar Level Gauge Based on Daubechies Wavelet [C] . International Computer Congress on Wavelet Analysis and Its Applications, and Active Media Technology vol.2; 200405; Chongqing(CN) . 2004

机译：基于Daubechies小波的调频连续波（Fm-Cw）雷达液位计的噪声估计方法。
5. A hybrid geostatistical-acoustical model for estimating single-event noise levels from noise monitor data [D] . Nykaza, Edward T. 2013

机译：用于从噪声监控器数据估计单事件噪声级别的混合地统计-声学模型
6. A New Wavelet Denoising Method for Selecting Decomposition Levels and Noise Thresholds [O] . Madhur Srivastava, C. Lindsay Anderson, Jack H. Freed -1

机译：选择分解水平和噪声阈值的小波去噪新方法
7. Entropy-Based Method of Choosing the Decomposition Level in Wavelet Threshold De-noising [O] . Yan-Fang Sang, Dong Wang, Ji-Chun Wu 2010

机译：基于熵的小波阈值去噪选择分解水平的方法

A METHOD OF ESTIMATING NOISE LEVEL IN A FREQUENCY-MODULATION CONTINUOUS-WAVE (FM-CW) RADAR LEVEL GAUGE BASED ON DAUBECHIES WAVELET

摘要

著录项

相似文献

相关主题

期刊订阅