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公开(公告)号：US20210149037A1
公开(公告)日：2021-05-20
申请号：US16853042
申请日：2020-04-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungdo CHOI , Byung Kwan KIM
IPC: G01S13/42 , G01S13/931 , G01S7/35
Abstract: A method with three-dimensional (3D) position measuring using a radio detection and ranging (radar) sensor includes: transmitting, through the radar sensor, a transmission signal of which a carrier frequency varies over time; obtaining, through the radar sensor, a reflected signal from the transmission signal being reflected by an object; obtaining a beat frequency signal indicating a frequency difference between the transmission signal and the reflected signal; and estimating 3D position information of the object based on groups of sample data of different frequency bands extracted from the beat frequency signal.
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公开(公告)号：US20200003885A1
公开(公告)日：2020-01-02
申请号：US16243410
申请日：2019-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungdo CHOI
Abstract: A radio detection and ranging (radar) operating apparatus includes: radar sensors configured to receive signals reflected from an object; and a processor configured to generate Doppler maps for the radar sensors based on the reflected signals and estimate a time difference between the radar sensors based on the generated Doppler maps.
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公开(公告)号：US20190155304A1
公开(公告)日：2019-05-23
申请号：US15941436
申请日：2018-03-30
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungdo CHOI
Abstract: An object detection method and apparatus for a vehicle in a confined space are provided. An object detection method for a vehicle traveling in a confined space, includes determining a first beam pattern and a second beam pattern based on geometric information of the confined space, detecting first candidate objects based on a first transmission signal emitted to form the first beam pattern using at least one antenna, detecting second candidate objects based on a second transmission signal emitted to form the second beam pattern using the at least one antenna, detecting at least one clutter object based on the first candidate objects and the second candidate objects, and detecting a target object based on the at least one clutter object.
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公开(公告)号：US20240248193A1
公开(公告)日：2024-07-25
申请号：US18628120
申请日：2024-04-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungdo CHOI , Seung Tae KHANG
IPC: G01S13/58 , G01S13/02 , G01S13/34 , G01S13/931
CPC classification number: G01S13/589 , G01S13/34 , G01S13/931 , G01S2013/0245
Abstract: Disclosed is a method and apparatus for processing a radar signal by correcting a phase distortion. The method includes generating radar data based on a radar transmission signal transmitted through an array antenna of a radar sensor based on a frequency modulation model and a radar reception signal received through the array antenna as the radar transmission signal is reflected by a target, correcting the radar data using a correction vector for correcting a feedline error occurring due to a feedline delay difference between channels of the array antenna, and estimating a direction of arrival corresponding to the corrected radar data using a direction matrix reflecting a phase shift of the corrected radar data according to frequency modulation characteristics of the frequency modulation model.
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公开(公告)号：US20240125925A1
公开(公告)日：2024-04-18
申请号：US18321351
申请日：2023-05-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungdo CHOI , Seung Tae KHANG , Jong-Sok KIM , Jinyong JEON , Young Rae CHO
IPC: G01S13/931 , G01S7/35 , G01S13/42 , G01S13/58
CPC classification number: G01S13/931 , G01S7/356 , G01S13/42 , G01S13/584
Abstract: A method of predicting a movement of a cut-in object, including separating a Doppler velocity corresponding to at least one wheel of the cut-in object from radar data based on a velocity of the cut-in object, determining a position of the at least one wheel of the cut-in object based on the Doppler velocity, generating at least one of first movement information related to a horizontal movement of the cut-in object or second movement information related to a moving direction of the cut-in object based on the position of the at least one wheel, and determining a position of the cut-in object based on at least one of the first movement information or the second movement information.
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Patent Agency Ranking
公开(公告)号：US20240053469A1
公开(公告)日：2024-02-15
申请号：US18496348
申请日：2023-10-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungdo CHOI , Byung Kwan KIM
IPC: G01S13/931 , G01S7/04 , G01S13/72 , G01S13/89
CPC classification number: G01S13/931 , G01S7/04 , G01S13/72 , G01S13/89
Abstract: A radio detection and ranging (radar) signal processing device obtains radar data by compensating for a change in a carrier frequency of a sensed radar signal, and outputs a radar image map based on the obtained radar data. The radar signal processing method includes obtaining a beat frequency signal based on a radar transmission signal generated based on a frequency modulation model and a radar reflection signal obtained from the radar transmission signal being reflected from an object, and generating radar data by compensating the beat frequency signal for a carrier frequency change by the frequency modulation model.
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公开(公告)号：US20220155411A1
公开(公告)日：2022-05-19
申请号：US17331074
申请日：2021-05-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungdo CHOI , Jong-Sok KIM , Young Rae CHO
IPC: G01S7/35 , G01S13/58 , G01S13/931 , G01S13/536
Abstract: A radar signal processing method includes: extracting a first chirp sequence signal of a first carrier frequency and a second chirp sequence signal of a second carrier frequency from a radar signal received through an array antenna in a radar sensor; generating a first range-Doppler map by performing frequency conversion on the first chirp sequence signal; detecting a first target cell corresponding to a first target in the first range-Doppler map; determining a first ambiguous Doppler velocity of the first target based on first frequency information of the first target cell; determining a first range of an unambiguously measurable Doppler velocity through the first chirp sequence signal; estimating second ambiguous Doppler velocities based on the first ambiguous Doppler velocity and the first range; and determining a Doppler velocity of the first target by performing partial frequency conversion on the second chirp sequence signal based on the second ambiguous Doppler velocities.
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公开(公告)号：US20210382165A1
公开(公告)日：2021-12-09
申请号：US17121956
申请日：2020-12-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungdo CHOI , Seung Tae KHANG
IPC: G01S13/58 , G01S13/931 , G01S13/34
Abstract: Disclosed is a method and apparatus for processing a radar signal by correcting a phase distortion. The method includes generating radar data based on a radar transmission signal transmitted through an array antenna of a radar sensor based on a frequency modulation model and a radar reception signal received through the array antenna as the radar transmission signal is reflected by a target, correcting the radar data using a correction vector for correcting a feedline error occurring due to a feedline delay difference between channels of the array antenna, and estimating a direction of arrival corresponding to the corrected radar data using a direction matrix reflecting a phase shift of the corrected radar data according to frequency modulation characteristics of the frequency modulation model.
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公开(公告)号：US20210086754A1
公开(公告)日：2021-03-25
申请号：US16990206
申请日：2020-08-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jong-Sok KIM , Byung Kwan KIM , Woosuk KIM , Min Sung EO , Hyunwoong CHO , Sungdo CHOI
Abstract: A control apparatus includes a Wi-Fi communication module, a processor, a controller that controls a component of a vehicle, and a memory, wherein the memory stores at least one piece of position information corresponding to a position in the vehicle, and at least one registered pattern of a gesture, face, or shape, the Wi-Fi communication module transmits a transmission signal to the position corresponding to the at least one piece of position information by a Wi-Fi communication method at a preset frequency and receives a reflection signal reflected from an object in response to the transmission signal, the processor acquires an input pattern of a gesture, face, or shape of the object by analyzing the reflection signal, and retrieves a registered pattern matching the input pattern from the at least one registered pattern, and the controller controls the component according to an instruction corresponding to the retrieved registered pattern.
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公开(公告)号：US20190079177A1
公开(公告)日：2019-03-14
申请号：US15920990
申请日：2018-03-14
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jaesup LEE , Sungdo CHOI , Byung Kwan KIM
Abstract: A radar image processing method includes acquiring captured images from radars synchronized to perform beamforming on a same point at a same time, synthesizing the captured images based on at least one overlapping area of the captured images, and generating a high-resolution image based on the synthesized images.
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