公开(公告)号：US20230389809A1

公开(公告)日：2023-12-07

申请号：US18083321

申请日：2022-12-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Jin YOO ,  Hyung Ju KIM ,  Byung Jang JEONG

IPC: A61B5/021 ,  A61B5/0205 ,  A61B5/024

CPC classification number: A61B5/02108 ,  A61B5/02427 ,  A61B5/0205

Abstract: A blood pressure measurement method using at least one radar in a blood pressure measurement apparatus may comprise: measuring a radar signal for at least one body part; extracting a heartbeat signal from the radar signal; selecting one or more peak signals from the heartbeat signal; calculating an area under a curve (AUC) of each of the selected one or more peak signals; and calculating blood pressure from the calculated AUC on the basis of a derived relational expression between AUC and blood pressure.

公开(公告)号：US20220196827A1

公开(公告)日：2022-06-23

申请号：US17557831

申请日：2021-12-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyung Ju KIM ,  Sung Jin YOO ,  Byung Jang JEONG ,  Woo Jin BYUN ,  In Kui CHO

IPC: G01S13/88 ,  G01S13/00 ,  G01S7/41 ,  G01S13/42

Abstract: A method for calculating an altitude of a target through an apparatus for calculating an altitude of the target, which comprises a plurality of MIMO radar virtual antennas, may comprise: receiving electromagnetic waves reflected from the target through a pair of virtual antennas classified into an upper antenna and a lower antenna and alternately arranged in two columns linearly; obtaining range information and phase information of the target from the pair of virtual antennas by analyzing the electromagnetic waves; and calculating altitude information of the target from position information of the pair of virtual antennas, and the range information and the phase information.

公开(公告)号：US20240175979A1

公开(公告)日：2024-05-30

申请号：US18504343

申请日：2023-11-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Myung Sun SONG ,  Hyung Ju KIM ,  Sung Jin YOO ,  Byung Jang JEONG ,  Seung Keun PARK ,  In Kui CHO

IPC: G01S7/35

CPC classification number: G01S7/358 ,  G01S13/343

Abstract: Exemplary embodiments provide a radar apparatus having a plurality of antenna elements and enabling to reduce a number of ADCs as long as being allowable according to a bandwidth of the ADC, reduce a chip area occupied by the ADC and interconnections in an integrated circuit, and prevent a synchronization problem between the ADCs by sampling receive signals of multiple channels at once. Frequencies of local oscillation signals used for downconverting receive signals are set to be different from each other by an amount of an offset frequency, so that each of band-limited receive signals obtained through respective RF paths may occupy a different position on a frequency axis of a frequency domain. Downconverted receive signals are combined into a single signal and converted into a single digital signal stream, and a signal processing of the digital signal stream in a digital domain enables to obtain target data.

公开(公告)号：US20230168339A1

公开(公告)日：2023-06-01

申请号：US17952481

申请日：2022-09-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyung Ju KIM ,  Myung Sun SONG ,  Sung Jin YOO ,  Byung Jang JEONG

IPC: G01S7/298

CPC classification number: G01S7/298

Abstract: An operation method of a radar signal processing apparatus in a radar system may include: generating pulse signals of a number of any one sampling rate having different phases; transmitting the pulse signals to a target; receiving reflected pulse signals reflected back from the target; generating a composite signal by sampling the reflected pulse signals and combining the sampled reflected pulse signals to match the phases; and extracting target information from the composite signal.

公开(公告)号：US20230021567A1

公开(公告)日：2023-01-26

申请号：US17866727

申请日：2022-07-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Jin YOO ,  Hyung Ju KIM ,  Myung Sun SONG ,  Byung Jang JEONG

IPC: G01S7/02 ,  G01S13/931

Abstract: Disclosed is a radar detection assistant apparatus for increasing detection accuracy when detecting an object using a radar detection device. The radar detection assistant apparatus includes a radar signal receiver for adjusting a radar candidate signal received through a reception antenna to a predetermined magnitude and filtering out a signal other than the radar candidate signal, a radar signal analyzer for receiving the radar candidate signal from the radar signal receiver and determining whether or not the radar candidate signal is a preset radar signal, a radar signal production controller for generating a control signal for an assistant apparatus production signal or an assistant apparatus reproduction signal on the basis of at least one of pieces of information on a type, a bandwidth, and a period of the radar candidate signal received from the radar signal analyzer, and a radar signal producer.