CN114616488A - 一种信号噪声滤除方法、装置、存储介质及激光雷达 - Google Patents

一种信号噪声滤除方法、装置、存储介质及激光雷达 Download PDF

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Publication number
CN114616488A
CN114616488A CN202080004315.7A CN202080004315A CN114616488A CN 114616488 A CN114616488 A CN 114616488A CN 202080004315 A CN202080004315 A CN 202080004315A CN 114616488 A CN114616488 A CN 114616488A
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China
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component
signal
noise
difference frequency
noisy
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CN202080004315.7A
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朱琳
任亚林
汪敬
牛犇
篠原磊磊
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Suteng Innovation Technology Co Ltd
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Suteng Innovation Technology Co Ltd
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Publication of CN114616488A publication Critical patent/CN114616488A/zh
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

一种信号噪声滤除方法、装置、存储介质及激光雷达，其中方法包括：对激光雷达产生的初始差频信号进行集合经验模态分解，得到所述初始差频信号对应的分量集合(S101)；获取所述分量集合中各含噪分量对应的自相关函数能量值，在所述各含噪分量中获取最大的自相关函数能量值对应的分界分量(S102)；对所述分界分量的相邻高阶含噪分量进行小波阈值去噪处理，得到所述相邻高阶含噪分量对应的去噪分量(S103)；基于初始差频信号在频谱中所处频段区域，并基于所述去噪分量和所述分界分量进行信号重构处理，得到去噪后的时域差频信号(S104)。该方法可以提高差频信号的信噪比，提高有效的差频频率提取的成功率。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN202080004315.7A 2020-09-23 2020-09-23 一种信号噪声滤除方法、装置、存储介质及激光雷达 Pending CN114616488A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115824170A (zh) * 2023-02-17 2023-03-21 山东科技大学 一种摄影测量与激光雷达融合测量海洋波浪的方法
CN116304564A (zh) * 2023-02-23 2023-06-23 南京理工大学 一种基于改进eemd算法和自相关降噪的信号降噪方法

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* Cited by examiner, † Cited by third party
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CN117216483B (zh) * 2023-11-07 2024-02-20 湖南一特医疗股份有限公司 一种制氧机流量监测数据处理方法
CN117235652B (zh) * 2023-11-14 2024-02-09 山东鑫大地控股集团有限公司 一种基于大数据的钢丝加工环境监管方法及系统
CN117541020B (zh) * 2024-01-04 2024-03-22 山东合能科技有限责任公司 一种城市排水泵站调度管理方法及系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107179486A (zh) * 2017-05-24 2017-09-19 长沙理工大学 一种gis设备在线监测特高频信号降噪方法
CN107144829B (zh) * 2017-06-29 2019-11-19 南京信息工程大学 一种高效的激光雷达回波信号去噪方法
CN107607835A (zh) * 2017-09-12 2018-01-19 国家电网公司 一种基于改进eemd的输电线路激光测距信号去噪算法
CN107783200B (zh) * 2017-11-21 2019-06-07 吉林大学 一种联合emd与tfpf算法的全波磁共振信号随机噪声消减方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115824170A (zh) * 2023-02-17 2023-03-21 山东科技大学 一种摄影测量与激光雷达融合测量海洋波浪的方法
CN116304564A (zh) * 2023-02-23 2023-06-23 南京理工大学 一种基于改进eemd算法和自相关降噪的信号降噪方法
CN116304564B (zh) * 2023-02-23 2023-10-31 南京理工大学 一种基于改进eemd算法和自相关降噪的信号降噪方法

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