CN112166561A - 可重新配置的mimo雷达 - Google Patents
可重新配置的mimo雷达 Download PDFInfo
- Publication number
- CN112166561A CN112166561A CN201980034949.4A CN201980034949A CN112166561A CN 112166561 A CN112166561 A CN 112166561A CN 201980034949 A CN201980034949 A CN 201980034949A CN 112166561 A CN112166561 A CN 112166561A
- Authority
- CN
- China
- Prior art keywords
- radar
- antennas
- receiver
- transmitter
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
- H04B7/0608—Antenna selection according to transmission parameters
-
- 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
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/411—Identification of targets based on measurements of radar reflectivity
-
- 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
- G01S13/003—Bistatic radar systems; Multistatic radar systems
-
- 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
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
- G01S13/862—Combination of radar systems with sonar systems
-
- 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
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
- G01S13/878—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
-
- 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
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
-
- 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
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/87—Combinations of sonar systems
- G01S15/876—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- 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
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
-
- 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
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
-
- 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
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/35—Details of non-pulse systems
- G01S7/352—Receivers
-
- 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
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/42—Diversity systems specially adapted for radar
-
- 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
- G01S2013/9318—Controlling the steering
-
- 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
- G01S2013/93185—Controlling the brakes
-
- 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
- G01S2013/9319—Controlling the accelerator
-
- 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
- G01S2013/9327—Sensor installation details
- G01S2013/93273—Sensor installation details on the top of the vehicles
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2015/932—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles for parking operations
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2015/937—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details
- G01S2015/938—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details in the bumper area
-
- 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
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
汽车雷达系统可采用天线(301,302)到雷达发射器(TX‑j)和/或雷达接收器(RX‑i)的可重新配置的连接。汽车雷达系统的例示性实施方案包括:雷达发射器(TX‑1);雷达接收器(RX‑1);和数字信号处理器(DSP),该DSP耦接到雷达接收器,以检测由雷达发射器发射的信号(S1)的反射(S1,1)并且从其导出信号测量结果。雷达发射器和雷达接收器中的至少一者是能够切换的,以向数字信号处理器提供来自发射天线(301)和接收天线(302)的多个组合中的每一者的信号。
Description
相关申请的交叉引用
本申请要求由发明人Danny Elad、Ofer Markish和Benny Sheinman于2018年06月14日提交的标题为“可重新配置的MIMO雷达(Reconfigurable MIMO Radar)”的美国临时申请62/684,982的优先权。该临时申请据此以引用方式并入本文。
背景技术
在寻求更安全和更方便的交通选项的过程中,许多汽车制造商正在开发自动驾驶的汽车,其需要令人印象深刻的数量和种类的传感器,通常包括声学传感器和/或电磁传感器的阵列,以监测汽车与任何附近的人、宠物、车辆或障碍物之间的距离。所设想的感测技术包括多输入多输出雷达系统,但为充分执行的天线阵列提供足够数量的发射器和接收器可能是成本高昂的。现有技术未能为这一难题提供令人满意的解决办法。
发明内容
因此,本文公开了采用天线到雷达发射器和/或雷达接收器的可重新配置的连接的汽车雷达系统和方法。汽车雷达系统的例示性实施方案包括:雷达发射器;雷达接收器;和数字信号处理器,该数字信号处理器耦接到雷达接收器,以检测由雷达发射器发射的信号的反射并且从其导出信号测量结果。雷达发射器和雷达接收器中的至少一者是能够切换的,以向数字信号处理器提供来自多个天线中的每个天线的信号。
雷达测量方法的例示性实施方案包括:利用雷达发射器发射雷达信号;操作雷达接收器以向数字信号处理器提供接收信号;处理接收信号,以检测雷达信号的反射并且从其导出信号测量结果;以及切换雷达发射器和雷达接收器中的至少一者,以向数字信号处理器提供来自发射天线和接收天线的多个组合中的每一者的接收信号。
每个前述实施方案可以单独或结合采用,并且(如权利要求所反映的)它们还可能以任何适当的组合采用以下任选特征中的一个或多个特征:1.雷达发射器或雷达接收器的至少一些切换在信号发射期间由雷达发射器执行。2.雷达发射器是能够经由开关切换的,该开关将雷达发射器的输出端耦接到至少两个发射天线中的可选择发射天线。3.雷达接收器是能够经由开关切换的,该开关将低噪声放大器的输入端耦接到至少两个接收天线中的可选择接收天线。4.雷达接收器是能够经由开关切换的,该开关将降频转换器的输入端耦接到至少两个低噪声放大器中的可选择低噪声放大器,每个低噪声放大器耦接到相应的接收天线。5.雷达接收器是能够经由开关切换的,该开关将模数转换器的输入端耦接到至少两个降频转换器中的可选择降频转换器,每个降频转换器耦接到相应的接收天线。6.雷达接收器是能够经由栅极切换的,该栅极各自阻挡信号或将信号从相应的接收天线传递到模数转换器的输入端。7.数字信号处理器确定发射天线和接收天线的每个可用组合的信号测量结果。8.数字信号处理器应用相控阵处理以从信号测量结果导出图像。9.多个天线中的至少一个天线具有比多个天线中的另一个天线窄的波束宽度。10.信号测量结果包括到至少一个反射器的距离和方向。11.信号测量结果包括到波束扫描图像的每个像素的距离。
附图说明
在附图中:
图1为装配有传感器的例示性车辆的俯视图。
图2为例示性驾驶员辅助系统的框图。
图3为例示性固定多输入多输出(MIMO)雷达系统的示意图。
图4为例示性可重新配置的MIMO雷达系统的示意图。
图5为一个可重新配置的MIMO系统应用的示意图。
图6为第二可重新配置的MIMO系统应用的示意图。
图7A-图7D为用于天线切换接收器的各种例示性配置的示意图。
图8为例示性MIMO雷达收发器芯片的框图。
应当理解,附图和对应的详细描述并不限制本公开,而是相反,为理解落在所附权利要求范围内的所有修改形式、等同形式和替代形式提供基础。
具体实施方式
图1示出了例示性车辆102,该例示性车辆配备有一组超声停车辅助传感器104和多输入多输出(MIMO)雷达天线阵列106。对于具有驾驶员辅助和自动驾驶功能的车辆,传感器布置中的传感器的类型、数量和配置各不相同。例如,用于自主车辆的至少一些设想的MIMO雷达阵列包括四个发射天线和八个或更多个接收天线,这些天线被布置成在车辆之前、周围和后面扫描。车辆可采用传感器布置来检测和测量到各种检测区中的物体的距离/方向,以使得车辆能够在避免其他车辆和障碍物的同时进行导航。
图2示出了耦接到雷达阵列控制器205和各种超声波传感器204的作为星形拓扑结构中心的电子控制单元(ECU)202。当然,包括串行、并行和分层(树)拓扑结构在内的其他拓扑结构也是适合的,并且设想这些拓扑结构根据本文公开的原理使用。雷达阵列控制器205耦接到雷达天线阵列106中的发射天线和接收天线,以发射电磁波、接收反射并确定车辆与其周围环境的空间关系。为了提供自动停车辅助,ECU 202可以进一步连接到一组致动器,诸如转弯信号致动器208、转向致动器210、制动致动器212和节气门致动器214。ECU 202可以进一步耦接到用户交互式界面216以接受用户输入并且提供各种测量结果和系统状态的显示。
使用界面、传感器和致动器,ECU 202可提供自动停车、辅助停车、车道变换辅助、障碍物和盲点检测、自动驾驶以及其他期望的特征。在汽车中,各种传感器测量由一个或多个电子控制单元(ECU)采集,并且可由ECU用于确定汽车的状态。ECU可还对状态和传入信息采取行动,以致动各种信令和控制换能器以调节和维持汽车的操作。由ECU提供的操作包括各种驾驶员辅助特征,包括自动停车、车道跟踪、自动制动和自动驾驶。
为了收集必要的测量结果,ECU可采用MIMO雷达系统。雷达系统通过发射电磁波来操作,电磁波在反射回接收天线之前从发射天线向外行进。反射器可以是发射电磁波的路径中的任何适度导电物体。通过测量从发射天线到反射器并且返回到接收天线的电磁波的行进时间,雷达系统可确定到反射器的距离。如果使用多个发射或接收天线,或者如果在不同位置进行多次测量,则雷达系统可确定反射器的方向并且因此跟踪反射器相对于车辆的位置。利用更复杂的处理,可跟踪多个反射器。至少一些雷达系统采用阵列处理来“扫描”定向电磁波束并且构建车辆周围的图像。雷达系统的脉冲和连续波具体实施均可实现,但频率调制的连续波雷达系统通常对于准确性来说是优选的。
图3示出了具有固定MIMO配置的例示性系统,其中M发射器耦接到M发射天线以同时发送M发射信号。M个信号可从与N个接收器耦接的N个接收天线所接收的一个或多个目标来不同地反射。每个接收器可提取与M发射信号中的每一个相关联的振幅和相位或行进延迟,从而使得系统能够同时获得N*M测量结果。通常测量结果不需要同时采集,并且可经由使用时分多路复用和/或正交编码来减少与提取M测量结果的每个接收器相关联的处理要求。
无论如何,固定的MIMO系统对每个发射器或接收器采用相应的天线。广泛认为天线和发射器/接收器之间的这种一一对应提供关于阻抗匹配和信号损失的某些优点,因此其长期以来是标准。
然而,命名发明人认识到天线的数量越大,系统的多样性越大(即,系统可采集并且用于图像形成的独立测量结果的数量越大)。此外,分集增益可不仅仅补偿通过将多个天线与每个发射器或接收器相关联而引起的任何开关损耗,特别是在具有某些预期特征部(诸如有源反射器)的汽车雷达系统的上下文中。
因此,图4示出了例示性的可重新配置的MIMO雷达系统,其中每个发射器可选择性地耦接到M个对应发射天线中的一个发射天线,并且每个接收器可选择性地耦接到N个对应接收天线中的一个接收天线,从而使得N*M测量结果能够由一些发射器和接收器获得,因此保持系统的测量结果多样性同时显著减小系统的大小和成本。作为另外一种选择,可保持发射器和接收器的数量,同时增加天线的数量以显著改善系统的性能而基本上不增加系统的成本。(雷达开关和天线的制作成本低于雷达发射器和接收器。)可用天线系统地多路复用到可用的发射器和接收器,以收集用于雷达成像的完整的一组测量结果。
如图5所示,可重新配置的MIMO系统可操作以改善雷达和成像系统的空间分辨率,同时保持低功率消耗。每个发射器和接收器按顺序连接至每个可用天线,并且对测量结果进行数字组合,以形成具有改善的空间分辨率的图像。所示系统包括具有单个发射天线的单个发射器和具有两个可选接收天线的单个接收器。天线之间的选择使用开关来演示。其他选择方法也是可能的。
通过从第一天线接收信号并且然后切换至另一天线,接收系统的总孔径Atot变得大于单个天线的孔径Asingle。由于图像分辨率与天线孔径成反比(大孔径生成窄波束宽度),因此分辨率在合适的后处理之后增大。相比之下,固定的MIMO系统将需要待连接到两个接收天线的2个接收器,以便实现相同的分辨率。因此,可重新配置的MIMO方法提供增大的分辨率,同时保持低功率消耗。此外,由于仅使用单个接收器,通常用于实现接收器的芯片的尺寸可更小,并且可降低系统成本。
如图6所示,可重新配置的MIMO系统可操作以改善范围检测能力。为了覆盖不同的检测范围,发射器可在具有窄波束宽度和宽波束宽度的发射天线之间切换,并且接收器可类似地在具有窄波束宽度和宽波束宽度的天线之间切换。宽波束宽度天线提供宽视场,对附近的目标具有更好的灵敏度,但缺少检测远处目标的范围。相反,窄带宽天线提供用于检测远处目标的更大范围,但由于其狭窄的视野,它们可能无法检测到附近目标。可重新配置的MIMO系统可系统地或根据需要在天线之间切换,从而获得除当前原本可行之外的改善的范围检测能力。
所示系统包括具有两个不同发射天线的单个发射器和具有两个不同接收天线的单个接收器。天线之间的选择使用开关来演示。其他选择方法也是可能的。下文提供了对潜在切换技术的更详细的解释。为了检测远处目标(远程雷达,当高速行驶时是有用的),选择高增益和窄波束宽度天线。为了检测近处目标(短程雷达,当缓慢行进穿过拥挤的环境时是有用的),选择低增益和宽波束宽度天线。固定的MIMO解决方案需要2个发射器和2个接收器来实现相同的双范围能力。因此,可重新配置的MIMO方法改善了成像雷达范围能力,同时减少了发射器和接收器的数量。
所提议的可重新配置的MIMO系统方法使用例如开关将若干天线连接到每个发射器或接收器。通过使用附加天线产生的各种新的发射接收天线组合可通过合适的数字处理来改善成像雷达系统的性能。除其他外,与现有的雷达解决方案相比,可实现更好的空间分辨率、更好的范围检测能力和更好的功率消耗,并且本文所公开的原理可也适用于无线通信系统(例如,5G)。就通信而言,可重新配置的MIMO的主要目的是提高多路径环境中的通信能力。就雷达系统而言,可重新配置的MIMO方法可还在多路径环境中提供改善的性能,但更重要的是,其可改善角分辨率、多目标跟踪,并且潜在地提供多种模式以增加检测范围。
图7A-图7D示出了各种例示性天线选择技术。尽管示出了用于接收天线的选择技术,但它们也可类似地在发射器侧上实现。
图7A示出了将多个接收器天线302中的一个接收器天线选择性地耦接到模数转换器(ADC)704的接收器702。接收器702包括用于每个接收天线302的单独的连接端子、和将端子中的一个端子选择性地耦接到低噪声放大器(LNA)706的开关705。LNA 706放大来自所选择的天线的接收信号以改善接收信号强度,但不是强制的。LNA 706的输出端耦接到混频器708,该混频器将放大的接收信号与参考信号相乘以将放大的接收信号转换成基带。参考信号可以是例如载波信号、频率调制载波信号或传输信号的缓冲型式。混频器708和/或ADC704包括滤波器以阻挡来自下转换过程的谐波。ADC 704数字化基带信号以进一步数字信号处理,其确定产生接收信号的反射器的距离和方向信息。
开关705可以是例如机械开关或使用晶体管实现的开关,该晶体管以最小衰减或失真传送弱的高频信号。图7A的设计对开关提出了严格的性能要求。图7B示出了在一定程度上放宽对开关705的性能要求的接收器712。在接收器712的设计中,每个天线连接端子设置有相应的LNA 706A、LNA706B。开关705被放置在LNA的下游,以在这些LNA产生的放大信号之间进行选择。开关向混频器708的输入端提供所选择的信号。
虽然接收器712的设计使得开关705能够以更强的信号工作,但需要良好的高频性能。图7C示出了进一步放宽开关705的性能要求的接收器722。与接收器712一样,接收器722包括用于每个天线连接端子的相应的LNA 706A、LNA 706B。接收器722还包括相应的混频器708A、708B,以对来自每个LNA的放大的接收信号进行降频转换。开关705在由混频器708A、708B产生的基带接收信号之间进行选择。因为基带信号的频谱不包括高频含量,所以可采用传统的基于晶体管的开关或复用器来实现开关705。
图7D示出了组合接收器712和722的某些特征部的接收器732。接收器732包括用于对来自不同天线的接收信号进行降频转换的相应的混频器708A、708B,接收器732不是在混频器的下游具有开关705,而是具有用于选择性地阻挡放大的接收信号或将放大的接收信号从LNA 706A传递到混频器708A的栅极733、和用于选择性地阻挡放大的接收信号或将放大的接收信号从LNA 706B传递到混频器708B的第二栅极734。栅极733、734以互补方式操作,使得每次向前传递不超过一个放大的信号。
图8示出了用于可重新配置的MIMO系统的例示性收发器芯片802的框图。它包括4个接收器(RX-1到RX-4),每个接收器选择性地耦接到两个接收天线302,从而提供具有8个接收天线的可重新配置的MIMO系统,其中四个天线可同时用于收集测量结果。四个ADC704A至ADC704D对来自接收器RX-1到RX-4的基带接收信号进行采样和数字化,将数字化信号提供给数字信号处理器(DSP)以进行滤波和处理,或直接发送至高带宽接口804以启用对数字化基带信号的芯片外处理。如果使用,DSP生成可经由高带宽接口804传送至ECU的图像数据。
控制接口805使得ECU或其他主机处理器能够配置收发器芯片802(包括测试和校准电路806和发射信号生成电路807)的操作。电路807在可编程频带内生成具有可编程的调频速率和范围的载波信号。如果需要,分离器和相移器使得多个发射器TX-1到TX-4能够同时工作。在例示的示例中,收发器芯片802包括4个发射器(TX-1到TX-4),每个发射器固定地耦接到对应的发射天线301。在另选的实施方案中,多个发射天线可选择地耦接到每个发射器。
采用具有多个接收天线的可重新配置的MIMO系统的潜在缺点是使用发射天线和接收天线的不同组合来重复测量所需的时间。在某些设想的实施方案中,可通过在持续信号发射期间执行天线切换来最小化所需的时间。例如,当发射器正在发送来自从所选择的天线的发射信号时,每个接收器可利用第一所选择的天线获取第一测量结果,然后在脉冲传输继续时,切换至第二所选择的天线以收集第二测量结果。除此之外或作为另外一种选择,当发射器正在经由第一所选择的天线发送发射脉冲时,发射器可切换至第二所选择的天线,使得每个接收器能够响应于每个发射天线的使用而获得测量结果。
尽管出于解释的目的可将本文所述的操作顺次列出,但在实践当中,该方法可通过多个部件同时操作来进行,并且甚至可能推测性地进行以实现无序操作。所述的顺次论述并不旨在构成限制。此外,前述讨论的焦点一直是雷达传感器,但这些原理适用于任何MIMO换能器阵列系统。一旦完全理解了上述公开的内容,对于本领域技术人员来说这些和许多其他修改形式、等价形式和替代形式就将变得显而易见。旨在使以下权利要求书被解释为在适用情况下包含所有此类修改形式、等价形式和替代形式。
Claims (20)
1.一种汽车雷达系统,所述汽车雷达系统包括:
雷达发射器(TX-1);
雷达接收器(RX-1);和
数字信号处理器(DSP),所述DSP耦接到所述雷达接收器,
以检测由所述雷达发射器发射的信号(S1)的反射(S1,1)并且从其导出信号测量结果,
其中所述雷达发射器和所述雷达接收器中的至少一者是能够切换的,以向所述数字信号处理器提供来自多个天线(301,302)中的每个天线的信号。
2.根据权利要求1所述的汽车雷达系统,其中所述雷达发射器或所述雷达接收器的至少一些切换在信号发射期间由所述雷达发射器执行。
3.根据权利要求1所述的汽车雷达系统,其中所述雷达发射器是能够经由开关切换的,所述开关将所述雷达发射器的输出端耦接到至少两个发射天线中的可选择发射天线。
4.根据权利要求1所述的汽车雷达系统,其中所述雷达接收器是能够经由开关切换的,所述开关将低噪声放大器的输入端耦接到至少两个接收天线中的可选择接收天线。
5.根据权利要求1所述的汽车雷达系统,其中所述雷达接收器是能够经由开关切换的,所述开关将降频转换器的输入端耦接到至少两个低噪声放大器中的可选择低噪声放大器,每个低噪声放大器耦接到相应的接收天线。
6.根据权利要求1所述的汽车雷达系统,其中所述雷达接收器是能够经由开关切换的,所述开关将模数转换器的输入端耦接到至少两个降频转换器中的可选择降频转换器,每个降频转换器耦接到相应的接收天线。
7.根据权利要求1所述的汽车雷达系统,其中所述雷达接收器是能够经由栅极切换的,所述栅极各自阻挡信号或将信号从相应的接收天线传递到模数转换器的输入端。
8.根据权利要求1所述的汽车雷达系统,其中所述数字信号处理器确定发射天线和接收天线的每个可用组合的信号测量结果。
9.根据权利要求1所述的汽车雷达系统,其中所述数字信号处理器应用相控阵处理以从所述信号测量结果导出图像。
10.根据权利要求1所述的汽车雷达系统,其中所述多个天线中的至少一个天线具有比所述多个天线中的另一个天线窄的波束宽度。
11.一种雷达测量方法,所述雷达测量方法包括:
利用雷达发射器(TX-1)发射雷达信号(S1);
操作雷达接收器(RX-1)以向数字信号处理器(DSP)提供接收信号;
处理所述接收信号,以检测所述雷达信号的反射(S1,1)并且从其导出信号测量结果;以及
切换所述雷达发射器和所述雷达接收器中的至少一者,以向所述数字信号处理器提供来自发射天线(301)和接收天线(302)的多个组合中的每一者的接收信号。
12.根据权利要求11所述的雷达测量方法,其中所述雷达发射器或所述雷达接收器的至少一些切换在信号发射期间由所述雷达发射器执行。
13.根据权利要求11所述的雷达测量方法,其中所述雷达发射器是能够经由开关切换的,所述开关将所述雷达发射器的输出端耦接到至少两个发射天线中的可选择发射天线。
14.根据权利要求11所述的雷达测量方法,其中所述雷达接收器是能够经由开关切换的,所述开关将低噪声放大器的输入端耦接到至少两个接收天线中的可选择接收天线。
15.根据权利要求11所述的雷达测量方法,其中所述雷达接收器是能够经由开关切换的,所述开关将降频转换器的输入端耦接到至少两个低噪声放大器中的可选择低噪声放大器,每个低噪声放大器耦接到相应的接收天线。
16.根据权利要求11所述的雷达测量方法,其中所述雷达接收器是能够经由开关切换的,所述开关将模数转换器的输入端耦接到至少两个降频转换器中的可选择降频转换器,每个降频转换器耦接到相应的接收天线。
17.根据权利要求11所述的雷达测量方法,其中所述雷达接收器是能够经由栅极切换的,所述栅极各自阻挡信号或将信号从相应的接收天线传递到模数转换器的输入端。
18.根据权利要求11所述的雷达测量方法,其中所述数字信号处理器确定发射天线和接收天线的每个可用组合的信号测量结果。
19.根据权利要求11所述的雷达测量方法,其中所述数字信号处理器应用相控阵处理以从所述信号测量结果导出图像。
20.根据权利要求11所述的雷达测量方法,其中所述多个天线中的至少一个天线具有比所述多个天线中的另一个天线窄的波束宽度。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862684982P | 2018-06-14 | 2018-06-14 | |
US62/684,982 | 2018-06-14 | ||
US16/203,149 | 2018-11-28 | ||
US16/203,149 US11047956B2 (en) | 2018-06-14 | 2018-11-28 | Reconfigurable MIMO radar |
PCT/US2019/028966 WO2019240882A1 (en) | 2018-06-14 | 2019-04-24 | Reconfigurable mimo radar |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112166561A true CN112166561A (zh) | 2021-01-01 |
Family
ID=68839244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201980034949.4A Pending CN112166561A (zh) | 2018-06-14 | 2019-04-24 | 可重新配置的mimo雷达 |
Country Status (4)
Country | Link |
---|---|
US (3) | US11047956B2 (zh) |
CN (1) | CN112166561A (zh) |
DE (1) | DE112019002979T5 (zh) |
WO (1) | WO2019240882A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11686841B2 (en) | 2021-04-30 | 2023-06-27 | Huawei Technologies Co., Ltd. | Radar system and terminal device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11105891B2 (en) | 2018-12-13 | 2021-08-31 | Semiconductor Components Industries, Llc | Multi-input downconversion mixer |
US20200241122A1 (en) * | 2019-01-28 | 2020-07-30 | Metawave Corporation | Radar system with three-dimensional beam scanning |
US11360210B2 (en) * | 2019-07-02 | 2022-06-14 | Intel Corporation | Multi-mode multi-input multi-output (MIMO) radar sensors |
EP3974868A1 (en) * | 2020-09-29 | 2022-03-30 | Inalfa Roof Systems Group B.V. | Sensor system mountable on the roof of a car. |
US11796630B2 (en) | 2021-01-28 | 2023-10-24 | Ay Dee Kay Llc | MIMO channel extenders with associated systems and methods |
US11884292B1 (en) * | 2022-10-24 | 2024-01-30 | Aurora Operations, Inc. | Radar sensor system for vehicles |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1573356A (zh) * | 2003-06-09 | 2005-02-02 | 富士通天株式会社 | 接收扫描反射波的雷达装置 |
DE102004034429A1 (de) * | 2004-07-15 | 2006-02-09 | Daimlerchrysler Ag | Radar Front-End |
CN102066970A (zh) * | 2008-07-02 | 2011-05-18 | Adc汽车远程控制系统有限公司 | 具有正面和侧面辐射的雷达传感器 |
CN102288971A (zh) * | 2010-05-18 | 2011-12-21 | 万都株式会社 | 集成雷达系统及车辆控制系统 |
CN102680963A (zh) * | 2011-03-16 | 2012-09-19 | 韩国电子通信研究院 | 支持近程和远程雷达操作的雷达装置 |
CN106104969A (zh) * | 2014-03-17 | 2016-11-09 | 高通股份有限公司 | 用于预定空间中的对象的基于雷达的检测的系统、方法和装置 |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4283767A (en) * | 1979-05-03 | 1981-08-11 | Raytheon Company | Multiple correlator reference processor |
US4924235A (en) * | 1987-02-13 | 1990-05-08 | Mitsubishi Denki Kabushiki Kaisha | Holographic radar |
US5933109A (en) * | 1996-05-02 | 1999-08-03 | Honda Giken Kabushiki Kaisha | Multibeam radar system |
JP3061261B2 (ja) * | 1997-04-01 | 2000-07-10 | 本田技研工業株式会社 | Fmレーダ装置 |
US5929802A (en) * | 1997-11-21 | 1999-07-27 | Raytheon Company | Automotive forward looking sensor application |
JP3525426B2 (ja) * | 1997-11-28 | 2004-05-10 | トヨタ自動車株式会社 | レーダ装置 |
JPH11231040A (ja) * | 1998-02-12 | 1999-08-27 | Toyota Motor Corp | レーダ装置 |
US6288672B1 (en) * | 1998-09-14 | 2001-09-11 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Holographic radar |
JP3622565B2 (ja) * | 1999-03-31 | 2005-02-23 | 株式会社デンソー | レーダ装置 |
JP4258941B2 (ja) * | 1999-06-03 | 2009-04-30 | 株式会社デンソー | レーダ装置 |
JP3703014B2 (ja) * | 2001-05-11 | 2005-10-05 | 三菱電機株式会社 | レーダ信号処理装置、及び距離・速度計測方法 |
JP3988571B2 (ja) * | 2001-09-17 | 2007-10-10 | 株式会社デンソー | レーダ装置 |
WO2005069905A2 (en) * | 2004-01-16 | 2005-08-04 | Ghz Tr Corporation | Methods and apparatus for automotive radar sensors |
US20060262007A1 (en) * | 2004-01-16 | 2006-11-23 | Clariant Technologies, Corp. | Methods and apparatus for automotive radar sensors |
JP2006078388A (ja) * | 2004-09-10 | 2006-03-23 | Fujitsu Ten Ltd | レーダ装置 |
WO2007083479A1 (ja) * | 2006-01-23 | 2007-07-26 | Murata Manufacturing Co., Ltd. | レーダ装置 |
JP4519780B2 (ja) * | 2006-01-25 | 2010-08-04 | 富士通株式会社 | レーダー装置及びその故障診断方法 |
JP4433085B2 (ja) * | 2006-08-04 | 2010-03-17 | 株式会社村田製作所 | レーダの物標検知方法、およびこの物標検知方法を用いたレーダ装置 |
US8064533B2 (en) * | 2006-12-29 | 2011-11-22 | Broadcom Corporation | Reconfigurable MIMO transceiver and method for use therewith |
US8509205B2 (en) * | 2008-06-05 | 2013-08-13 | The Boeing Company | Multicode aperture transmitter/receiver |
JP2010071865A (ja) * | 2008-09-19 | 2010-04-02 | Fujitsu Ten Ltd | 信号処理装置、及びレーダ装置。 |
DE102009003214A1 (de) | 2009-05-19 | 2010-11-25 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Kraftstoffeinspritzventils einer Brennkraftmaschine und Steuergerät für eine Brennkraftmaschine |
US8289203B2 (en) * | 2009-06-26 | 2012-10-16 | Src, Inc. | Radar architecture |
JP5267538B2 (ja) * | 2010-11-05 | 2013-08-21 | 株式会社デンソー | ピーク検出閾値の設定方法、物標情報生成装置、プログラム |
JP5655516B2 (ja) * | 2010-11-12 | 2015-01-21 | 株式会社デンソー | レーダ装置 |
JP2012242166A (ja) * | 2011-05-17 | 2012-12-10 | Fujitsu Ten Ltd | レーダ装置 |
JP2013217884A (ja) * | 2012-04-12 | 2013-10-24 | Honda Elesys Co Ltd | 受信処理装置、受信処理方法および受信処理プログラム |
EP2873162A4 (en) | 2012-06-20 | 2016-01-27 | Univ Drexel | RECONFIGURABLE ANTENNAS FOR ENHANCING THE EFFECTIVENESS OF INTERFERENCE NETWORKS USING INTERFERENCE ALIGNMENT |
JPWO2015088030A1 (ja) * | 2013-12-12 | 2017-03-16 | 日本電産エレシス株式会社 | 反射波到来方向の推定方法、及びプログラム |
US20150285897A1 (en) * | 2014-03-31 | 2015-10-08 | Honeywell International Inc. | Hybrid radar system combining fmcw radar and pulsed radar |
JP6443011B2 (ja) * | 2014-12-01 | 2018-12-26 | 株式会社デンソー | 物標検出装置 |
US9977122B2 (en) * | 2015-03-27 | 2018-05-22 | The Boeing Company | Multi-function shared aperture array |
US10317518B2 (en) * | 2015-07-20 | 2019-06-11 | Brigham Young University (Byu) | Phased array radar systems for small unmanned aerial vehicles |
DE102015222884A1 (de) * | 2015-11-19 | 2017-05-24 | Conti Temic Microelectronic Gmbh | Radarsystem mit verschachtelt seriellem Senden und parallelem Empfangen |
WO2017175190A1 (en) * | 2016-04-07 | 2017-10-12 | Uhnder, Inc. | Adaptive transmission and interference cancellation for mimo radar |
US10261179B2 (en) * | 2016-04-07 | 2019-04-16 | Uhnder, Inc. | Software defined automotive radar |
EP3497474A4 (en) * | 2016-08-12 | 2020-05-06 | The University of Washington | MILLIMETER WAVE IMAGING SYSTEMS AND METHODS USING DIRECT CONVERSION RECEIVERS AND / OR MODULATION TECHNIQUES |
JP6853642B2 (ja) * | 2016-09-26 | 2021-03-31 | パナソニック株式会社 | レーダ装置 |
US10281575B2 (en) * | 2016-09-27 | 2019-05-07 | Steradian Semiconductors Private Limited | Method, system and device for radar based high resolution object detection |
KR102429767B1 (ko) * | 2017-04-11 | 2022-08-05 | 한국전자통신연구원 | 스위치드 배열 안테나 레이더를 위한 자가 교정 방법 |
US10320463B2 (en) * | 2017-06-02 | 2019-06-11 | Phazr, Inc. | Systems and methods for digital and analog beamforming in wireless communications |
-
2018
- 2018-11-28 US US16/203,149 patent/US11047956B2/en active Active
-
2019
- 2019-04-24 DE DE112019002979.7T patent/DE112019002979T5/de active Pending
- 2019-04-24 WO PCT/US2019/028966 patent/WO2019240882A1/en active Application Filing
- 2019-04-24 CN CN201980034949.4A patent/CN112166561A/zh active Pending
-
2021
- 2021-06-03 US US17/338,407 patent/US11747440B2/en active Active
-
2023
- 2023-07-19 US US18/224,034 patent/US20240159868A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1573356A (zh) * | 2003-06-09 | 2005-02-02 | 富士通天株式会社 | 接收扫描反射波的雷达装置 |
DE102004034429A1 (de) * | 2004-07-15 | 2006-02-09 | Daimlerchrysler Ag | Radar Front-End |
CN102066970A (zh) * | 2008-07-02 | 2011-05-18 | Adc汽车远程控制系统有限公司 | 具有正面和侧面辐射的雷达传感器 |
CN102288971A (zh) * | 2010-05-18 | 2011-12-21 | 万都株式会社 | 集成雷达系统及车辆控制系统 |
CN102680963A (zh) * | 2011-03-16 | 2012-09-19 | 韩国电子通信研究院 | 支持近程和远程雷达操作的雷达装置 |
CN106104969A (zh) * | 2014-03-17 | 2016-11-09 | 高通股份有限公司 | 用于预定空间中的对象的基于雷达的检测的系统、方法和装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11686841B2 (en) | 2021-04-30 | 2023-06-27 | Huawei Technologies Co., Ltd. | Radar system and terminal device |
Also Published As
Publication number | Publication date |
---|---|
US20190383901A1 (en) | 2019-12-19 |
US20240159868A1 (en) | 2024-05-16 |
DE112019002979T5 (de) | 2021-03-04 |
US11047956B2 (en) | 2021-06-29 |
WO2019240882A1 (en) | 2019-12-19 |
US20210293926A1 (en) | 2021-09-23 |
US11747440B2 (en) | 2023-09-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11747440B2 (en) | Reconfigurable MIMO radar | |
US10958323B1 (en) | MIMO radar system with dual mode output power amplification | |
US11726170B2 (en) | Multi-input downconversion mixer | |
CN112702090B (zh) | 一种多天线信号解码方法及多天线数字波束形成收发器 | |
US7864099B2 (en) | Low cost short range radar | |
JP6101820B2 (ja) | 車両レーダー診断構成 | |
JP4573518B2 (ja) | 物体位置決定方法、物体の範囲及び方位の測定方法及び物体の範囲及び方位測定用センサ | |
US20220373675A1 (en) | Switchable FMCW/PMCW Radar Transceiver | |
US11802937B2 (en) | Reconfigurable radio frequency front end for a radar system | |
KR20200108540A (ko) | 레이더 장치, 레이더 장치용 안테나 장치 및 레이더 장치의 제어 방법 | |
CN112558057A (zh) | 具有链接支持的雷达前端装置 | |
US20240111019A1 (en) | MIMO Channel Extenders with Associated Systems and Methods | |
US11709226B2 (en) | Calibrating array antennas based on signal energy distribution as a function of velocity | |
US8325083B2 (en) | Radar apparatus | |
US20220276363A1 (en) | Integrated electromagnetic-acoustic sensor and sensing | |
CN112986968A (zh) | 基于作为速度的函数的信号能量分布来校准阵列天线 | |
CN115047458A (zh) | 集成雷达装置 | |
DE102019008461A1 (de) | Mehrfach-eingang-abwärtskonvertierungsmischer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20230417 Address after: California, USA Applicant after: Adikay LLC Address before: Arizona Applicant before: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC |