CN115315636A - 一种雷达信号发射和接收方法及雷达 - Google Patents

一种雷达信号发射和接收方法及雷达 Download PDF

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Publication number
CN115315636A
CN115315636A CN202080098931.3A CN202080098931A CN115315636A CN 115315636 A CN115315636 A CN 115315636A CN 202080098931 A CN202080098931 A CN 202080098931A CN 115315636 A CN115315636 A CN 115315636A
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China
Prior art keywords
aliasing
transmitting
antenna
coefficient
coefficients
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Pending
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CN202080098931.3A
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English (en)
Inventor
刘劲楠
杨晨
劳大鹏
朱金台
周沐
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN115315636A publication Critical patent/CN115315636A/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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G01S13/343—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using sawtooth modulation
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets
    • G01S13/584—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets adapted for simultaneous range and velocity measurements
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles

Abstract

一种雷达信号发射和接收方法及雷达，其中，该接收方法包括：接收发射器发送的测量帧经至少一个目标反射后形成的回波信号(420)，测量帧包括U*Nslow个chirp信号，其中，NTx个发射天线与NRx个接收天线形成的虚拟接收阵列包括发射间隔为N1的重叠阵子和发射间隔为N2的重叠阵子。根据回波信号确定第一混叠系数和第二混叠系数(430)，第一混叠系数为第一目标对应的发射间隔为N1的重叠阵子对应的混叠系数，第二混叠系数为第一目标对应的发射间隔为N2的重叠阵子对应的混叠系数，根据第一混叠系数和第二混叠系数确定第一目标的速度(440)。采用该方法能够减轻重叠阵子受到的噪声影响，提高目标速度的求解准确度。

Description

PCT国内申请，说明书已公开。

Claims (20)

  1. PCT国内申请，权利要求书已公开。
CN202080098931.3A 2020-03-24 2020-03-24 一种雷达信号发射和接收方法及雷达 Pending CN115315636A (zh)

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PCT/CN2020/080977 WO2021189268A1 (zh) 2020-03-24 2020-03-24 一种雷达信号发射和接收方法及雷达

Publications (1)

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CN115315636A true CN115315636A (zh) 2022-11-08

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EP (1) EP4119979A4 (zh)
CN (1) CN115315636A (zh)
WO (1) WO2021189268A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115656961A (zh) * 2022-12-26 2023-01-31 南京楚航科技有限公司 一种基于并行处理器的os-cfar处理方法及系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11822005B2 (en) * 2021-02-26 2023-11-21 Nxp B.V. Radar communications with offset chirp interval time
US11815585B2 (en) 2021-02-27 2023-11-14 Nxp Usa, Inc. Method and system for time division multiplexing MIMO radar doppler compensation using spurious angle spectrum hypothesis tests

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
DE102014212284A1 (de) * 2014-06-26 2015-12-31 Robert Bosch Gmbh MIMO-Radarmessverfahren
US10627483B2 (en) * 2016-07-09 2020-04-21 Texas Instruments Incorporated Methods and apparatus for velocity detection in MIMO radar including velocity ambiguity resolution
KR102429767B1 (ko) * 2017-04-11 2022-08-05 한국전자통신연구원 스위치드 배열 안테나 레이더를 위한 자가 교정 방법
CN108594233B (zh) * 2018-04-24 2020-07-14 森思泰克河北科技有限公司 一种基于mimo汽车雷达的速度解模糊方法
CN110412558B (zh) * 2019-07-03 2022-05-17 南京理工大学 基于tdm mimo的解车载fmcw雷达速度模糊方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115656961A (zh) * 2022-12-26 2023-01-31 南京楚航科技有限公司 一种基于并行处理器的os-cfar处理方法及系统
CN115656961B (zh) * 2022-12-26 2023-03-10 南京楚航科技有限公司 一种基于并行处理器的os-cfar处理方法及系统

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EP4119979A1 (en) 2023-01-18
WO2021189268A1 (zh) 2021-09-30

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