公开(公告)号：US12088916B2

公开(公告)日：2024-09-10

申请号：US18508162

申请日：2023-11-13

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Kang Il Lee

IPC: G06K9/00 ,  G06F17/11 ,  G06T5/73 ,  H04N23/23 ,  H04N23/68 ,  G06T7/70

CPC classification number: H04N23/683 ,  G06F17/11 ,  G06T5/73 ,  H04N23/23 ,  G06T7/70 ,  G06T2207/10048 ,  G06T2207/20201

Abstract: The disclosure relates to a technique for generating a temperature blur kernel by using a heat balance equation. A method of generating a temperature blur kernel includes obtaining first performance information corresponding to an infrared (IR) sensor and second performance information corresponding to a gyro sensor, obtaining an output image equation based on a heat balance equation, the first performance information, and the second performance information, and generating a temperature blur kernel based on the output image equation, the first performance information, and the second performance information.

公开(公告)号：US20240281637A1

公开(公告)日：2024-08-22

申请号：US18434823

申请日：2024-02-07

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Daehwan KIM ,  Juyoung LEE ,  Hyunseong KANG ,  Daikyung HYUN

IPC: G06N3/04

CPC classification number: G06N3/04

Abstract: One or more embodiments relate to a technology for pruning filters or reducing filters based on clustering. According to one or more embodiments, there is provided a method for pruning filters in neural networks, the method including obtaining a convolutional layer having a plurality of filters; generating a plurality of clusters by dividing the plurality of filters; calculating a geometric median for each of the plurality of clusters; and excluding at least one filter from among the plurality of filters based on the geometric median for each of the plurality of clusters.

公开(公告)号：US12050263B2

公开(公告)日：2024-07-30

申请号：US18002240

申请日：2021-07-13

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Yonggi Jo ,  Suyong Lee ,  Sangkyung Lee ,  Yongsup Ihn ,  Zaeill Kim

IPC: G01S17/04 ,  G01S7/481 ,  G01S17/00

CPC classification number: G01S17/04 ,  G01S7/4816 ,  G01S17/006

Abstract: The objective of the present invention is to provide a quantum receiver using square of homodyne detection for detecting a target of a quantum radar by using the square of homodyne detection that uses homodyne detection used in quantum information processing using continuous variables, and data processing, and a measurement method therefore. In order to achieve the above objective, the quantum receiver for detecting a target of a quantum radar using the square of homodyne detection according to the present invention comprises: a first 50:50 beam splitter for mixing signals coming into an input terminal; and two light quantity measurement units for measuring the quantity of light respectively outputted to two output terminals of the first 50:50 beam splitter.

公开(公告)号：US20240242493A1

公开(公告)日：2024-07-18

申请号：US18414465

申请日：2024-01-17

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Daehwan KIM ,  Eunjin KOH ,  Wonhyuk YANG

IPC: G06V10/82 ,  G06V10/74 ,  G06V10/75 ,  G06V10/778

CPC classification number: G06V10/82 ,  G06V10/758 ,  G06V10/761 ,  G06V10/7788

Abstract: Provided is technology for generating training data and generating a neural network model based on a frame similarity. A method of generating a neural network model by using a video includes determining an image similarity between consecutive frames from among a plurality of frames included in the image, generating training frame data by excluding at least one of the consecutive frames, when the image similarity is equal to or greater than a threshold value, and generating the neural network model based on the training frame data.

公开(公告)号：US20240232480A1

公开(公告)日：2024-07-11

申请号：US18481126

申请日：2023-10-04

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Hyunwoo NAM ,  Hyeyun KU ,  Jiyun SEO

IPC: G06F30/28

CPC classification number: G06F30/28

Abstract: The system for predicting the indoor contamination spread for CBR according to the present invention includes an input information acquisition unit acquiring model input information including at least any one information of information on an indoor space to be modeled, CBR contamination source information, and environmental setting information, a low-fidelity indoor spread modeling unit calculating an averaged contamination concentration in a designed indoor zone by using an indoor spread model for a concentration change rate of the contamination source according to a flow analysis by a pressure difference based on the acquired indoor space information, and a high-fidelity indoor spread modeling unit calculating a contamination concentration for each lattice previously partitioned in a target indoor zone by using a computational fluid dynamics technique from the acquired indoor space information.

公开(公告)号：US12019161B1

公开(公告)日：2024-06-25

申请号：US18512634

申请日：2023-11-17

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Da Sol Lee ,  Sang Hyun Joo ,  Hyoung Woo Lim

IPC: G01C3/08 ,  G01S17/894 ,  G01S17/933 ,  G06T15/06

CPC classification number: G01S17/894 ,  G01S17/933 ,  G06T15/06

Abstract: Provided is an electronic apparatus and an operation method thereof for, based on location information on a vehicle on a first occupancy grid map, identifying a second occupancy grid map having a first location as an origin and identifying an occupancy state of a grid included in the second occupancy grid map, updating the occupancy state of the grid included in the second occupancy grid map based on information acquired from a sensor, identifying an inflation range corresponding to a first grid among grids included in the second occupancy grid map based on appearance information on the vehicle, and identifying an inflated occupancy state of a second grid included in the inflation range based on an occupancy state of the first grid.

公开(公告)号：US11973584B2

公开(公告)日：2024-04-30

申请号：US17376591

申请日：2021-07-15

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Jaewon Chang ,  Jeong Ho Ryu ,  Joo Rae Park ,  Young Ju Park ,  Byeong Nam Lee

IPC: H04K3/00

CPC classification number: H04K3/42

Abstract: This application relates to a noise signal generating apparatus. In one aspect, the apparatus includes a bandwidth expansion unit configured to generate a noise signal having a second bandwidth by expanding a noise source signal having a first bandwidth to the second bandwidth that is greater than the first bandwidth. The apparatus may also include a randomization unit configured to perform randomization and output the generated noise signal having the second bandwidth.

公开(公告)号：US11952968B2

公开(公告)日：2024-04-09

申请号：US18223433

申请日：2023-07-18

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Seung Gyo Jang ,  Doo Hee Han ,  Young Hwa Kwon

IPC: F02K9/95 ,  F02K9/38 ,  F42C9/14 ,  F42C11/00 ,  F42C11/06 ,  F42C15/40 ,  F42C19/08 ,  F42C19/12

CPC classification number: F02K9/95 ,  F02K9/38 ,  F42C9/14 ,  F42C11/00 ,  F42C11/06 ,  F42C15/40 ,  F42C19/0819 ,  F42C19/12

Abstract: The present invention relates a safety ignition device for a high altitude dual pulse motor according to the present invention, and can prevent accidental ignition of an ignition device or a propulsion engine while efficiently using a space by installing the safety ignition device in front of a combustion pipe, increase the reliability of ignition, and maintain the air tightness of the inside of the propulsion engine and the ignition device even in a high altitude environment.

公开(公告)号：US11943047B2

公开(公告)日：2024-03-26

申请号：US18143714

申请日：2023-05-05

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Jun O Kim

IPC: H04K3/00

CPC classification number: H04K3/415 ,  H04K3/44

Abstract: An apparatus of controlled reception pattern antenna (CRPA) neutralization for an illegal unmanned aerial vehicle (UAV) includes an interference signal generator transmitting a direct wave toward a CRPA of an illegal UAV through a first transmission antenna and transmitting a first reflected wave inducing signal through a second transmission antenna and a first passive propagation mirror reflecting the first reflected wave inducing signal toward the illegal UAV so that the first reflected wave propagates toward the CRPA of the illegal UAV.

公开(公告)号：US11916292B1

公开(公告)日：2024-02-27

申请号：US18104953

申请日：2023-02-02

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Byung Chul Park ,  Kun Sup Kwon ,  Jong Wan Heo

IPC: H01Q13/02 ,  H01Q13/18 ,  H01P3/123

CPC classification number: H01Q13/0275 ,  H01P3/123 ,  H01Q13/0225 ,  H01Q13/18

Abstract: According to the present disclosure, an antenna apparatus which includes a hollow pillar shaped waveguide extending in a first direction and at least one ridge protruding from an inner circumferential surface of the waveguide and extending in the first direction, wherein the ridge has at least one recessed groove formed in the first direction; and an antenna apparatus which includes the waveguide, the ridge and the iris structure protruding from the inner circumferential surface of the waveguide along a plane intersecting the first direction, are provided.