-
公开(公告)号：US20210364634A1
公开(公告)日：2021-11-25
申请号：US17395823
申请日：2021-08-06
申请人： UHNDER, INC.
发明人： Curtis Davis , Monier Maher , Jean P. Bordes , Manju Hegde , Otto A. Schmid , Raghunath K. Rao , Marius Goldenberg , Aria Eshraghi , Vito Giannini , David S. Trager , Nikhilesh Bhagat , Srikanth Gollapudi , Sundar Govindarajan , Steve Borho , Jonathan Preussner , Paul W. Dent , Paul Bassett , Stephen W. Alland , Fred Harris , Wayne E. Stark , Murtaza Ali
IPC分类号： G01S13/931 , G01S7/02 , G01S13/87 , H04L27/227
摘要： A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system includes transmitters configured to transmit radio signals, receivers configured to receive radar signals, and a control unit. The received radio signals include transmitted radio signals transmitted by the transmitters and reflected from objects in an environment. The control unit adaptively controls the transmitters and the receivers based on a selected operating mode for the radar system. The selected operating mode meets a desired operational objective defined by current environmental conditions. The control unit is configured to control the receivers to produce and process data according to the selected operating mode.
-
公开(公告)号：US11086010B2
公开(公告)日：2021-08-10
申请号：US16207910
申请日：2018-12-03
申请人： UHNDER, INC.
发明人： Curtis Davis , Monier Maher , Jean P. Bordes , Manju Hegde , Otto A. Schmid , Raghunath K. Rao , Marius Goldenberg , Aria Eshraghi , Vito Giannini , David S. Trager , Nikhilesh Bhagat , Srikanth Gollapudi , Sundar Govindarajan , Steve Borho , Jonathan Preussner , Paul W. Dent , Paul Bassett , Stephen W. Alland , Fred Harris , Wayne E. Stark , Murtaza Ali
IPC分类号： G01S13/931 , G01S7/02 , G01S13/87 , H04L27/227 , G01S7/35 , H04B17/309 , H04B17/345
摘要： A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on one or more of a selected range resolution, a selected velocity resolution, and a selected angle of arrival resolution, as defined by memory requirements and processing requirements. The system allows improved resolution of range, Doppler and/or angle depending on the memory requirements and processing requirements. The system also adapts to changing environmental conditions including interfering radio signals.
-
公开(公告)号：US09945943B2
公开(公告)日：2018-04-17
申请号：US15632754
申请日：2017-06-26
申请人： UHNDER, INC.
发明人： Wayne E. Stark , Jean P. Bordes , Curtis Davis , Raghunath K. Rao , Monier Maher , Manju Hegde , Otto A. Schmid
IPC分类号： G01S13/93 , G01S7/02 , H04B17/345 , H04L27/227 , G01S7/292 , G01S7/40 , H04B17/309 , H04B7/0413
CPC分类号： G01S13/93 , G01S7/023 , G01S7/292 , G01S7/4021 , G01S13/87 , G01S13/878 , G01S13/931 , G01S2013/9357 , G01S2013/936 , G01S2013/9375 , G01S2013/9378 , H04B7/0413 , H04B17/309 , H04B17/345 , H04L27/2278
摘要： A radar system has different modes of operation. In one mode the radar operates as a single-input, multiple-output (SIMO) radar system utilizing one transmitted signal from one antenna at a time. Codes with known excellent autocorrelation properties are utilized in this mode. At each receiver the response after correlating with various possible transmitted signals is measured in order to estimate the interference that each transmitter will represent at each receiver. The estimated effect of the interference from one transmitter on a receiver that correlates with a different code is used to mitigate the interference. In another mode, the radar operates as a MIMO radar system utilizing all the antennas at a time. Interference cancellation of the non-ideal cross correlation sidelobes when transmitting in the MIMO mode are employed to remove ghost targets due to unwanted sidelobes.
-
公开(公告)号：US20180031675A1
公开(公告)日：2018-02-01
申请号：US15782305
申请日：2017-10-12
申请人： UHNDER, INC.
发明人： Aria Eshraghi , Jean P. Bordes , Curtis Davis , Raghunath K. Rao , Murtaza Ali , Paul W. Dent
CPC分类号： G01S7/354 , G01S7/038 , G01S7/292 , G01S7/4021 , G01S13/347 , G01S13/87 , G01S13/931 , G01S2007/358 , G01S2013/9375 , G01S2013/9378
摘要： A radar system is described that comprises a transmitter, a receiver, a spillover cancellation unit, and a combiner. The transmitter transmits radio signals. The receiver receives interfering signals due to local signal coupling of transmitted signals. The local signal coupling comprises at least one interfering path or mechanism. The spillover cancellation unit is configured to output a replica of each of the interfering signals. Each replica is configured to replicate a particular interfering signal received through a particular interfering path or mechanism. The combiner is configured to combine into a signal path of the receiver, a replica of an interfering signal to subtract the interfering signal from the receiver's signal path. The receiver receives the transmitted radio signals reflected from objects in the environment without saturating the signal path of the receiver due to the subtraction of the interfering signal from the receiver's signal path.
-
公开(公告)号：US20180031674A1
公开(公告)日：2018-02-01
申请号：US15712230
申请日：2017-09-22
申请人： UHNDER, INC.
CPC分类号： G01S7/023 , G01S13/325 , G01S13/931
摘要： A radar sensing system for a vehicle includes a transmitter, a receiver, and a processor. The transmitter is configured to transmit a radio signal. The receiver is configured to receive a radio signal which includes the transmitted radio signal reflected from an object in the environment. The receiver is also configured to receive an interfering radio signal transmitted by a transmitter of another radar sensing system. The processor is configured to control the transmitter to mitigate or avoid interference from the other radar sensing system.
-
公开(公告)号：US09829567B1
公开(公告)日：2017-11-28
申请号：US15690899
申请日：2017-08-30
申请人： UHNDER, INC.
发明人： Curtis Davis , Jean P. Bordes , Monier Maher , Wayne Stark , Raghunath K. Rao
CPC分类号： G01S7/282 , G01S7/023 , G01S7/032 , G01S7/038 , G01S13/18 , G01S13/70 , G01S13/931 , G01S2013/9321 , G01S2013/9375 , G01S2013/9378 , G01S2013/9389
摘要： A radar sensing system includes at least one transmitter, at least one receiver and a processor. The at least one transmitter transmits a power shaped radio signal. The at least one receiver receives radio signal that includes the transmitted radio signal reflected from targets in the environment. The received radio signal is provided to the processor. The processor samples the received radio signal during a plurality of time intervals to produce a sampled stream. The different time intervals of the plurality of time intervals will contain different signal levels of radio signals reflected from the targets. The processor also selects a particular time interval of the plurality of time intervals that is free of samples of radio signals reflected off of the targets that are closer than a first threshold distance from an equipped vehicle.
-
公开(公告)号：US20170310507A1
公开(公告)日：2017-10-26
申请号：US15491193
申请日：2017-04-19
申请人： UHNDER, INC.
IPC分类号： H04L25/03 , H04B7/145 , H04L12/935
CPC分类号： H04L25/03006 , G01S13/00 , H04B7/145 , H04B7/155 , H04J11/004 , H04L25/0204 , H04L49/3063
摘要： A radar sensing system for a vehicle includes a transmitter, a receiver, and an interference mitigation processor. The transmitter transmits radio signals. The receiver receives radio signals. The received radio signals include reflected radio signals that are each transmitted radio signals reflected from objects in the environment. The receiver also down-converts and digitizes the received radio signals to produce a baseband sampled stream. The interference mitigation processor produces a second received radio signal that includes reflected radio signals that are transmitted radio signals reflected from a first object. The interference mitigation processor uses the second received radio signal to remove selected samples from the baseband sampled stream that are attributed to radio signals reflected from the first object to produce a modified baseband sampled stream. The receiver uses the modified baseband sampled stream to detect a second object more distant than the first object.
-
公开(公告)号：US09791551B1
公开(公告)日：2017-10-17
申请号：US15496314
申请日：2017-04-25
申请人： UHNDER, INC.
发明人： Aria Eshraghi , Jean P. Bordes , Curtis Davis , Raghunath K. Rao , Murtaza Ali , Paul W. Dent
CPC分类号： G01S7/354 , G01S7/038 , G01S7/292 , G01S7/4021 , G01S13/347 , G01S13/87 , G01S13/931 , G01S2007/358 , G01S2013/9375 , G01S2013/9378
摘要： A digital FMCW radar is described that simultaneously transmits and receives digitally frequency modulated signals using multiple transmitters and multiple receivers and associated antennas. Several sources of nearby spillover from transmitters to receivers that would otherwise degrade receiver performance are subtracted by a cancellation system in the analog radio frequency domain that adaptively synthesizes an analog subtraction signal based on residual spillover measured by a correlator operating in the receivers' digital signal processing domains and based on knowledge of the transmitted waveforms. The first adaptive cancellation system achieves a sufficient reduction of transmit-receive spillover to avoid receiver saturation or other non-linear effects, but is then added back in to the signal path in the digital domain after analog-to-digital conversion so that spillover cancellation can also operate in the digital signal processing domain to remove deleterious spillover components.
-
公开(公告)号：US09753132B1
公开(公告)日：2017-09-05
申请号：US15463298
申请日：2017-03-20
申请人： UHNDER, INC.
发明人： Jean P. Bordes , Raghunath K. Rao , Monier Maher
CPC分类号： G01S13/50 , G01S7/354 , G01S13/18 , G01S13/325 , G01S13/36 , G01S13/931 , G01S2007/356 , G01S2013/9375 , G01S2013/9378 , G01S2013/9385 , G01S2013/9392
摘要： A radar sensing system for a vehicle includes a transmitter, a receiver, a memory, and a processor. The transmitter transmits a radio signal and the receiver receives a reflected radio signal. The processor samples reflected radio signals during a plurality of time slices. The processor produces samples by correlating reflected radio signals to time-delayed replicas of transmitted radio signals. The processor accumulates the time slices into a first radar data cube and stores the first radar data cube in a memory. The processor combines a portion of the first radar data cube with a portion of a previously stored radar data cube. Based at least in part on the combined portions of the radar data cubes, the processor processes a time series that is a time series of the first radar data cube concatenated with a time series from the previously stored radar data cube.
-
公开(公告)号：US11906620B2
公开(公告)日：2024-02-20
申请号：US17395823
申请日：2021-08-06
申请人： UHNDER, INC.
发明人： Curtis Davis , Monier Maher , Jean P. Bordes , Manju Hegde , Otto A. Schmid , Raghunath K. Rao , Marius Goldenberg , Aria Eshraghi , Vito Giannini , David S. Trager , Nikhilesh Bhagat , Srikanth Gollapudi , Sundar Govindarajan , Steve Borho , Jonathan Preussner , Paul W. Dent , Paul Bassett , Stephen W. Alland , Fred Harris , Wayne E. Stark , Murtaza Ali
IPC分类号： G01S13/931 , G01S7/02 , G01S13/87 , H04L27/227 , H04B17/309 , H04B17/345 , G01S7/35
CPC分类号： G01S13/931 , G01S7/023 , G01S7/0233 , G01S7/0234 , G01S13/87 , G01S13/878 , H04L27/2278 , G01S7/356 , G01S2013/9316 , G01S2013/9322 , G01S2013/93271 , G01S2013/93272 , H04B17/309 , H04B17/345 , H04B2201/71634
摘要： A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system includes transmitters configured to transmit radio signals, receivers configured to receive radar signals, and a control unit. The received radio signals include transmitted radio signals transmitted by the transmitters and reflected from objects in an environment. The control unit adaptively controls the transmitters and the receivers based on a selected operating mode for the radar system. The selected operating mode meets a desired operational objective defined by current environmental conditions. The control unit is configured to control the receivers to produce and process data according to the selected operating mode.
-
-
-
-
-
-
-
-
-
搜索结果
53 条记录 (耗时 0.036 秒)
