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1. 发明授权

US11592546B1 Angle-Doppler Keystone formatting for airborne look-down radar system 有权
公开(公告)号：US11592546B1
公开(公告)日：2023-02-28
申请号：US16371826
申请日：2019-04-01
申请人： SRC, INC.
发明人： Harvey K. Schuman , Daniel D. Thomas, Jr. , Jason M. Steeger , Lun Z. Chen
IPC分类号： G01S13/524 , G01S13/58 , G01S13/90 , G01S7/41 , G01S7/28 , G01S13/42 , G01S13/02
摘要： An airborne radar system and signal interpretation approach that detects slow moving ground targets using angle and Doppler of Keystone formatting process, and is referred to as Angle-Doppler Keystone Formatting (ADK). ADK collapses the clutter ridge to a constant Doppler or to a constant angle, thereby transforming a clutter ridge in angle-Doppler space into a horizontal line of constant Doppler or a vertical line of constant angle. Clutter may then be filtered more effectively, such as by using multiple beams as the source of STAP training data or by using multiple Doppler bins.

2. 发明授权

US11573310B2 Compact radar switch/MIMO array antenna with high azimuth and elevation angular resolution 有权
公开(公告)号：US11573310B2
公开(公告)日：2023-02-07
申请号：US16480030
申请日：2018-01-30
申请人： ARBE ROBOTICS LTD.
发明人： Noam Arkind , Amos Baron , Yoram Stettiner
IPC分类号： G01S13/34 , G01S13/10 , G01S13/42 , G01S13/931 , H01Q1/32 , H01Q21/08 , H04B7/0413
摘要： A method for increasing the effective aperture of radar switch/MIMO antenna array, using a low number of transmit (Tx) and receive (Rx) army elements, according to which an array of radar physical receive (Rx)/Transmit (Tx) elements are arranged in at least two opposing Rx rows and at least two opposing Tx columns, such that each row includes a plurality of receive (Rx) elements uniformly spaced from each other and each column includes a plurality of transmit (Tx) elements uniformly spaced from each other, the array forming a rectangular physical aperture. Used as a switch array, a first Tx element from one column is activated to transmit a radar pulse during a predetermined time slot. Reflections of the first transmission are received in all Rx elements, thereby virtually replicating the two opposing Rx rows about an origin determined by the location of the first Tx element within the rectangular physical aperture. This process is repeated for all remaining Tx elements during different time slots, thereby virtually replicating the two opposing Rx rows about an origin determined by the location of each activated Tx element within the rectangular physical aperture, while each time, receiving reflections of the transmission from each Tx element in all Rx elements. This way, a rectangular virtual aperture having dimensions which are twice the dimensions of the rectangular physical aperture is paved with replicated two opposing Rx rows. This virtual aperture determines the radar beam widths and side-lobes.

3. 发明申请

US20230031035A1 OCCUPANCY DETECTION SYSTEM 有权
公开(公告)号：US20230031035A1
公开(公告)日：2023-02-02
申请号：US17788662
申请日：2020-12-17
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. , UNIVERSITY OF NEW SOUTH WALES
发明人： Andreas OLK , David Anthony POWELL
IPC分类号： B60R21/015 , G01S13/42 , G01S13/56 , H01Q1/32 , H01Q15/00 , B60N2/00
摘要： An occupancy detection system for at least one vehicle seat includes: an antenna arrangement having an antenna; a control device that applies a radio-frequency transmission signal to, and receives a response signal from, the antenna arrangement; and a transmit array having a plurality of structured metallic layers disposed above each other and extending laterally, each two neighbouring metallic layers isolated from each other by an intermediate dielectric layer. The antenna arrangement transmits a radio-frequency transmission field through the transmit array onto the vehicle seat in response to the transmission signal and receives a radio-frequency response field through the transmit array to generate the response signal. The transmit array is adapted to refract at least one of the transmission field and the response field. The transmit array has a receive section that focuses a response field from a position of a vehicle seat to a position of a receive antenna.

4. 发明授权

US11555909B2 Radar systems 有权
公开(公告)号：US11555909B2
公开(公告)日：2023-01-17
申请号：US16961535
申请日：2019-01-11
申请人： LEONARDO MW LIMITED
发明人： Anthony Kinghorn , Christopher Mountford
IPC分类号： G01S13/48 , G01S13/42 , H01Q25/00
摘要： A radar system for air volume surveillance, the radar having a transmitter and receiver with separate antennas. The receiver aperture being relatively large compared with the transmitter aperture such that the receiving beam is narrower than the transmitting beam, which itself is relatively small compared with the volume to be surveyed. Multiple receiving beams can be configured so that collectively they substantially match the angular volume of the transmitting beam; and in which the transmitter is arranged, when operating, to transmit a signal with a duty cycle greater than fifty percent.

5. 发明申请

US20230003868A1 SYSTEM AND METHOD FOR EVALUATION CENTROID RANGE-BEARING PROCESSING IN HIGH RESOLUTION COASTAL SURVEILLANCE RADAR 有权
公开(公告)号：US20230003868A1
公开(公告)日：2023-01-05
申请号：US17671277
申请日：2022-02-14
申请人： VIETTEL GROUP
发明人： Van Loi Nguyen , Quoc Tuan Tran , Trung Kien Tran , Van Truong Tran , Vu Hop Tran
IPC分类号： G01S13/42
摘要： The patent provides the system and the method of evaluation the centroid range-bearing processing in high resolution coastal surveillance radars to solve the problem of assessing the quality of centroid processing. The provided system includes blocks: Input data block, parameter calculation block, evaluation and export result block; The provided method includes steps: Loading input data, calculating parameters, evaluating and exporting results. The system and method provided in this invention solve the issue of the quality assessment of the radar system according to the battle-technical specification at the target centroid level.

6. 发明申请

US20220373668A1 SYSTEMS AND METHODS TO DETECT MOTION ON SLOPED SURFACES 有权
公开(公告)号：US20220373668A1
公开(公告)日：2022-11-24
申请号：US17815498
申请日：2022-07-27
申请人： Niiva OpCo, LLC
发明人： David Long , Jordan Hill
IPC分类号： G01S13/534 , G08B21/10 , G01S13/87 , G01S13/42 , H04B7/06
摘要： Systems and methods are described to identify motion events on a sloped surface, such as a mountainside, using transmitted and received radio frequency (RF) chirps. A one-dimensional array of receive antennas can be digitally beamformed to determine azimuth information of received reflected chirps. Elevation information can be determined based on time-of-flight measurements of received reflected chirps and known distances to locations on the sloped surface. Motion events may be characterized by deviations in return power levels and/or return phase shifts. The systems and methods may, for example, be used to provide real-time detection of avalanches and/or landslides.

7. 发明授权

US11507650B2 Radar-based behaviometric user authentication 有权
公开(公告)号：US11507650B2
公开(公告)日：2022-11-22
申请号：US17357013
申请日：2021-06-24
申请人： BEHAVIOSEC INC
发明人： Ingo Deutschmann , Per Burstrom
IPC分类号： G06F21/32 , G01S13/88 , G01S13/42 , G06F3/01
摘要： A first behaviometric user profile for a first user is generated and stored, by detecting a position and velocity of the first user relative to the mobile device based on a received response from a radar transmission while the first user uses the mobile device, the received response over time indicating a position and velocity of the first user. Based on further received responses of additional radar transmissions an additional behavioral pattern of an unknown user is determined. The additional behavioral pattern is then compared to the first behaviometric user profile, and based on the comparison, a measure of similarity between the first behaviometric user profile and the additional behavioral pattern, measuring if the first user and the unknown user are a same user is heuristically determined. As a result of the comparison, operation or access to at least some data stored on the mobile device is prevented.

8. 发明申请

US20220342036A1 Methods and Apparatus for Velocity Detection in MIMO Radar Including Velocity Ambiguity Resolution 有权
公开(公告)号：US20220342036A1
公开(公告)日：2022-10-27
申请号：US17856109
申请日：2022-07-01
申请人： Texas Instruments Incorporated
发明人： Sandeep Rao , Karthik Subburaj , Dan Wang , Adeel Ahmad
IPC分类号： G01S7/35 , G01S13/42 , G01S13/92 , G01S13/34
摘要： In accordance with described examples, a method determines if a velocity of an object detected by a radar is greater than a maximum velocity by receiving on a plurality of receivers at least one frame of chirps transmitted by at least two transmitters and reflected off of the object. A velocity induced phase shift (φd) in a virtual array vector S of signals received by each receiver corresponding to a sequence of chirps (frame) transmitted by each transmitter is estimated. Phases of each element of virtual array vector S are corrected using φd to generate a corrected virtual array vector Sc. A first Fourier transform is performed on the corrected virtual array vector Sc to generate a corrected virtual array spectrum to detect a signature that indicates that the object has an absolute velocity greater than a maximum velocity.

9. 发明授权

US11463166B2 Conformal load bearing distributed sensing arrays 有权
公开(公告)号：US11463166B2
公开(公告)日：2022-10-04
申请号：US16936903
申请日：2020-07-23
申请人： The Boeing Company
发明人： Manny S. Urcia , Jonathan M. St. Clair , Christopher M. La Fata , John G. Castagno , Ordie D. Butterfield , Stephen T. Tyahla , Alec Adams , Lixin Cai
IPC分类号： H04B10/00 , H04B10/112 , H04B10/50 , H04B10/66 , G01S1/00 , H01Q5/22 , G01S17/42 , H04B7/185 , G01S13/42 , H04J14/00 , H01Q1/28
摘要： Systems, methods, and apparatus for an electromagnetic (EM) panel are disclosed. In one or more embodiments, a disclosed electromagnetic (EM) panel comprises an outer skin, an inner skin, a core disposed between the outer skin and the inner skin, and at least one receiver to receive at least one first signal. In at least one embodiment, at least one receiver is disposed within an opening on the outer skin of the EM panel. At least one receiver is an optical sensor(s) and/or a radio frequency (RF) antenna(s). In one or more embodiments, the EM panel further comprises at least one transmitter to transmit at least one second signal. In at least one embodiment, at least one transmitter is disposed within an opening on the outer skin of the EM panel. At least one transmitter is a laser(s) and/or a RF antenna(s).

10. 发明授权

US11456713B2 Low power mode of operation for mm-wave radar 有权
公开(公告)号：US11456713B2
公开(公告)日：2022-09-27
申请号：US16851558
申请日：2020-04-17
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Sandeep Rao , Brian Ginsburg
IPC分类号： H03F3/217 , G01S3/14 , G01S7/35 , G01S13/34 , G01S13/42 , G01S13/931 , H01Q1/22 , H01Q3/26 , H03B5/12 , H03F3/24 , H03F3/45 , G01S13/00
摘要： Disclosed examples include a radar system that operates in a first mode and a second mode. In the first mode, the system detects the presence of an object within a threshold range. In response to detection of the presence of the object, the system transitions to the second mode, and the system generates range data, velocity data, and angle data of the object in the second mode. When the object is no longer detected within the threshold range, the system transitions back to the first mode.

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