公开(公告)号：US20240077599A1

公开(公告)日：2024-03-07

申请号：US18255903

申请日：2021-12-03

Applicant: Veoneer Sweden AB

Inventor： Jonathan MOSS ,  Martin FUCHS ,  Hansjerg GOELZ

IPC: G01S13/536 ,  G01S13/34 ,  G01S13/931

CPC classification number: G01S13/536 ,  G01S13/343 ,  G01S13/931

Abstract: A vehicle radar system (3) adapted to be placed in an ego vehicle (1) and comprising a control unit (4) and at least one transceiver arrangement (5) arranged to generate and transmit an FMCW signal (6; 6a, 6′a; 6b, 6′b) and to receive reflected signals (7) that have been reflected by one or more target objects (14, 15), each target object having an associated determined target object velocity (v2, v3). The FMCW signal (6) comprises a corresponding plurality of frequency ramps (r1, r2), where each one has a certain duration time (tr1, tr2). The control unit (4) is adapted to control the transceiver arrangement (5) to generate at least two pluralities (6a, 6′a; 6b, 6′b, 6c, 6′c) of ramps (r1, r2). The ramps (r1) in each plurality (6a, 6′a) of ramps (r1) are adapted to have a ramp period time (tT1) that differs from the ramp period time (tT2, tT3, tT4) in all other pluralities (6b, 6′b, 6c, 6′c) of ramps (r1, r2). The ramp period times (tT1, tT2, tT3, tT4) are based on a determined ego vehicle velocity (v1), the determined target object velocity (v2, v3), or a combination of both.

公开(公告)号：US11899093B2

公开(公告)日：2024-02-13

申请号：US17325716

申请日：2021-05-20

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Katsuhisa Kashiwagi ,  Nobuyuki Nozawa

IPC: G01S13/536 ,  G01S13/86 ,  G01S13/931

CPC classification number: G01S13/536 ,  G01S13/86 ,  G01S13/931 ,  G01S2013/93274

Abstract: A radar device includes a radar unit, a signal processing unit, a GPS receiver, and a storage unit. The signal processing unit acquires, for each target, a distance (R) to the target and a relative velocity (Veff) between the radar unit and the target when the radar unit is moving. The signal processing unit separately detects positions of a plurality of targets by using a separation algorithm in which a difference between the relative velocities (Veff) is used. When the radar unit is stopped, the signal processing unit corrects the position of each target detected when the radar unit has been moving, based on a current position of the radar unit stored in the storage unit, and identifies the positions of the plurality of targets.

公开(公告)号：US20240045021A1

公开(公告)日：2024-02-08

申请号：US18488447

申请日：2023-10-17

Applicant: TRACKMAN A/S

Inventor： Fredrik TUXEN ,  Thomas SØNDERGAARD

IPC: G01S7/02 ,  G01S3/802 ,  G01S13/93 ,  G01S13/58 ,  G01S13/86 ,  G01S13/70 ,  G01S13/536 ,  G01S13/32 ,  G01S13/88 ,  A63B69/36

CPC classification number: G01S7/02 ,  G01S3/802 ,  G01S13/93 ,  G01S13/58 ,  G01S13/867 ,  G01S13/70 ,  G01S13/536 ,  G01S13/32 ,  G01S13/88 ,  A63B69/36

Abstract: A system for tracking the movement of an object includes a radar device having a first field of view. The radar device generates radar data indicating one of a range corresponding to a distance of a moving object within the first field of view from the radar device and a range rate corresponding to a rate at which the distance is changing relative to the radar device. The system also includes an imager having a second field of view at least partially overlapping the first field of view in an overlap field of view. The imager generates imager data measuring, when the object is in the second field of view, an angular position of the object relative to the imager in at least one dimension. In addition, the system includes a processor combining the radar data and imager data, when the object is in the overlap field of view, to identify a track of the object in at least two dimensions.

公开(公告)号：US20240004051A1

公开(公告)日：2024-01-04

申请号：US18215654

申请日：2023-06-28

Applicant: Autel Robotics Co., Ltd.

Inventor： Feng TAO ,  Yanfeng Dang

IPC: G01S13/34 ,  G01S7/35 ,  G01S13/536 ,  G05D1/10

CPC classification number: G01S13/347 ,  G01S7/356 ,  G01S13/536 ,  G05D1/106

Abstract: A radar ranging method and a ranging radar are applied to an unmanned aerial vehicle. A first range to an obstacle is obtained using a first radar waveform. range. A second range to the obstacle are obtained using a second radar waveform if the first range is less than a preset switching threshold. the maximum detection range of the first radar waveform is greater than that of the second radar waveform; and a detection range resolution of the second radar waveform is higher than that of the first radar waveform.

公开(公告)号：US11808837B2

公开(公告)日：2023-11-07

申请号：US17543175

申请日：2021-12-06

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Belfiore ,  Salvatore Scaccianoce ,  Amedeo Michelin Salomon ,  Antonino Calcagno

IPC: G01S13/53 ,  G01S7/285 ,  G01S13/931 ,  G01S13/34 ,  G01S13/42 ,  G01S13/536 ,  G01S7/35 ,  G01S7/03 ,  G01S7/41 ,  G01S7/282

CPC classification number: G01S13/53 ,  G01S7/03 ,  G01S7/282 ,  G01S7/285 ,  G01S7/354 ,  G01S7/41 ,  G01S13/343 ,  G01S13/42 ,  G01S13/536 ,  G01S13/931

Abstract: A method of operating a radar sensor system includes: frequency down-converting a reception signal that is chirp-modulated with a sequence of chirp ramps to an intermediate frequency signal; and high-pass filtering the intermediate frequency signal to produce a high-pass filtered signal. High-pass filtering includes: first high-pass filtering, with a first corner frequency, the intermediate frequency signal at each chirp in the chirp modulation of the reception signal; and replacing the first high-pass filtering with a second high-pass filtering with a second corner frequency, the first corner frequency being higher than the second corner frequency.

公开(公告)号：US20230305105A1

公开(公告)日：2023-09-28

申请号：US18319326

申请日：2023-05-17

Applicant: DENSO CORPORATION

Inventor： Yusuke AKAMINE ,  Takuya TAKAYAMA

IPC: G01S7/35 ,  G01S13/536 ,  G01S13/56

CPC classification number: G01S7/354 ,  G01S13/536 ,  G01S13/56 ,  G01S13/931

Abstract: A signal processing apparatus is mounted in a moving body and performs a process for measuring an object present in a vicinity of the moving body. The apparatus sets an intensity threshold corresponding to an intensity distribution based on at least one measurement signal periodically generated, and extracts at least one target peak that is a peak that is greater than the intensity threshold in the intensity distribution, using an upper limit number set in advance as an upper limit. The apparatus stores, in a storage unit, the number of extracted peaks that is the number of the at least one target peak extracted, and sets the intensity threshold so as to suppress the number of the at least one target peak in a new intensity distribution from exceeding the upper limit number, based on the number of extracted peaks in a previous intensity distribution stored in the storage unit.

公开(公告)号：US20190250264A1

公开(公告)日：2019-08-15

申请号：US16273737

申请日：2019-02-12

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Belfiore ,  Salvatore Scaccianoce ,  Amedeo Michelin Salomon ,  Antonino Calcagno

IPC: G01S13/53 ,  G01S7/03 ,  G01S7/282 ,  G01S7/285 ,  G01S7/41

CPC classification number: G01S13/53 ,  G01S7/03 ,  G01S7/282 ,  G01S7/285 ,  G01S7/354 ,  G01S7/41 ,  G01S13/343 ,  G01S13/42 ,  G01S13/536 ,  G01S13/931

Abstract: A method of operating a radar sensor system includes: frequency down-converting a reception signal that is chirp-modulated with a sequence of chirp ramps to an intermediate frequency signal; and high-pass filtering the intermediate frequency signal to produce a high-pass filtered signal. High-pass filtering includes: first high-pass filtering, with a first corner frequency, the intermediate frequency signal at each chirp in the chirp modulation of the reception signal; and replacing the first high-pass filtering with a second high-pass filtering with a second corner frequency, the first corner frequency being higher than the second corner frequency.

公开(公告)号：US20190204415A1

公开(公告)日：2019-07-04

申请号：US16331016

申请日：2017-09-08

Applicant: DIRK KLOTZBUECHER ,  CHRISTIAN SCHWERT ,  PHILIPP STARK

Inventor： DIRK KLOTZBUECHER ,  CHRISTIAN SCHWERT ,  PHILIPP STARK

IPC: G01S7/41 ,  G01S13/536 ,  G01S13/93

CPC classification number: G01S7/415 ,  G01S13/42 ,  G01S13/536 ,  G01S13/726 ,  G01S13/931 ,  G01S2013/9332 ,  G01S2013/9385

Abstract: A vehicle radar system (3) mounted in a host vehicle (1) arranged to run in a forward running direction (D). The vehicle radar system (3) includes a transceiver arrangement (7) to generate and transmit radar signals (4), and to receive reflected radar signals (5), the transmitted radar signals (4) have been reflected by one or more objects (6, 12). The radar system (3) provides range (rn), azimuth angle (θn) and radial velocity (vrn) for a plurality of measurement points (9, 9′) at the objects (6, 12). The radar system (3) is divides a total detection volume (8) into at least two partial volumes (8a, 8b, 8c, 8d), and performs a velocity estimation for each partial volume (8a, 8b, 8c, 8d) such that a total velocity distribution (14) is acquired along a side extension (E) that is perpendicular to an extension along the vehicle forward running direction (D).

公开(公告)号：US09971021B2

公开(公告)日：2018-05-15

申请号：US14113998

申请日：2012-04-25

Applicant: Allistair A. Moses ,  Matthew J. Rutherford ,  Kimon P. Valavanis

Inventor： Allistair A. Moses ,  Matthew J. Rutherford ,  Kimon P. Valavanis

IPC: G01S13/04 ,  G01S7/41 ,  G01S13/93 ,  G01S7/03 ,  G01S7/35 ,  G01S13/536

CPC classification number: G01S7/41 ,  G01S7/032 ,  G01S7/352 ,  G01S7/412 ,  G01S13/04 ,  G01S13/536 ,  G01S13/9303

Abstract: An unmanned aerial vehicle (UAV) radar apparatus may be used in aircraft detection and avoidance. The radar apparatus may include an RF front end configured to transmit and receive RF signals, a filtering module coupled with the RF front end module that filters RF signals received at the RF front end module, and a target data processing module coupled with the filtering module that detects and identifies one or more targets based on the filtered RF signals. Avoidance procedures may be initiated based on the identification and detection of one or more targets.

公开(公告)号：US20170131391A1

公开(公告)日：2017-05-11

申请号：US15415832

申请日：2017-01-25

Applicant: RichWave Technology Corp.

Inventor： Tse-Peng Chen

IPC: G01S11/10

CPC classification number: G01S11/10 ,  G01S7/034 ,  G01S7/35 ,  G01S13/536 ,  H03B19/14 ,  H03B2200/0074 ,  H03B2200/0082 ,  H03B2200/0088 ,  H03L7/0802 ,  H03L7/099 ,  H04L1/0053

Abstract: A detector includes a frequency multiplier and a transceiving node. The frequency multiplier includes a first terminal, a second terminal and an output terminal. The first terminal is used to receive a first injection signal having a first frequency. The output terminal is used to output an output signal. The second terminal is used to receive a second injection signal having a second frequency. The frequency multiplier is used to output the output signal at a frequency substantially equal to a multiple of the first frequency by injection locking and pull the output signal to the second frequency by injection pulling. The transceiving node is coupled to the output terminal and the second terminal of the frequency multiplier. The transceiving node is used to transmit the output signal, and receive a received signal having a third frequency. The received signal is used to update the second injection signal.