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 PDFInfo
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- 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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- 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
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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
- G01S13/08—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
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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
- G01S13/50—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
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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
- G01S13/88—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
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
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)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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)
Publication Number | Publication Date |
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CN115315636A true CN115315636A (zh) | 2022-11-08 |
Family
ID=77890896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202080098931.3A Pending CN115315636A (zh) | 2020-03-24 | 2020-03-24 | 一种雷达信号发射和接收方法及雷达 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4119979A4 (zh) |
CN (1) | CN115315636A (zh) |
WO (1) | WO2021189268A1 (zh) |
Cited By (1)
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)
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)
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 |
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2020
- 2020-03-24 WO PCT/CN2020/080977 patent/WO2021189268A1/zh unknown
- 2020-03-24 CN CN202080098931.3A patent/CN115315636A/zh active Pending
- 2020-03-24 EP EP20926758.2A patent/EP4119979A4/en active Pending
Cited By (2)
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 |
Also Published As
Publication number | Publication date |
---|---|
EP4119979A1 (en) | 2023-01-18 |
WO2021189268A1 (zh) | 2021-09-30 |
EP4119979A4 (en) | 2023-05-31 |
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