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公开(公告)号:US20240259037A1
公开(公告)日:2024-08-01
申请号:US18334413
申请日:2023-06-14
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Ki Chul KIM , Kyoungyoul PARK , Jihaeng CHO
CPC classification number: H04B1/0475 , H03F3/193 , H04B1/16 , H04B1/48 , H03F2200/294
Abstract: An adaptive receiver for a high output power system includes a band-pass filter that receives a transmission signal output from a transmitter and outputs a transmission signal for canceling a leakage signal from which noise has been removed, and a leakage signal canceller that includes a first metal layer through which the transmission signal for canceling the leakage signal flows and a second metal layer through which a transmission leakage signal by the transmission signal flows, in which the first metal layer and the second metal layer are disposed adjacent to each other to generate a coupling effect, the transmission leakage signal for canceling the leakage signal flows in a reverse direction to a direction in which the transmission leakage signal flows, and the transmission leakage signal is canceled.
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32.
公开(公告)号:US20240247913A1
公开(公告)日:2024-07-25
申请号:US18482668
申请日:2023-10-06
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Dai Kyung HYUN , Jin Seo PARK , Ye Jun KANG
IPC: F41G7/34
CPC classification number: F41G7/34
Abstract: A method of determining topographical interference with a guided missile is proposed. The method may include obtaining a pre-calculated expected trajectory of a guided missile. The method may also include extracting topographic elevations with respect to a topography corresponding to the pre-calculated expected trajectory from stored topographical information. The method may further include determining presence or absence of topographical interference with the guided missile based on bottom trajectory elevation values in the pre-calculated expected trajectory and topographic elevation values corresponding to the bottom trajectory elevation values. The pre-calculated expected trajectory may include top, bottom, left, and right trajectories with respect to a launch direction of the guided missile, calculated based on an error factor for the guided missile, and the error factor includes manufacturing error values with respect to at least one of a weight, center of gravity, a thrust, or a moment of inertia of the guided missile.
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公开(公告)号:US12030965B2
公开(公告)日:2024-07-09
申请号:US17849485
申请日:2022-06-24
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Byoung Sun Min , Jin Hyuk Lee , Hong Min Shim , Sungjune Kim , Minhye Lee
IPC: C08F136/14
CPC classification number: C08F136/14
Abstract: Provided are a modified conjugated diene-based polymer comprising a conjugated diene-based monomer-derived repeating unit; and a chain extender-derived part which is linked to both terminals of the conjugated diene based monomer-derived repeating unit, respectively, includes one or more urethane groups in a molecular chain, and has different functional groups at both terminals, wherein one of the functional groups is an alkyne group, wherein a terminal of the chain extender-derived part which is not linked to both terminals of the conjugated diene based monomer-derived repeating unit is an alkyne group, a manufacturing method thereof, a binder composition for a solid propellant comprising the same, a modified conjugated diene based binder for a solid propellant, and a manufacturing method thereof.
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34.
公开(公告)号:US20240187287A1
公开(公告)日:2024-06-06
申请号:US18527898
申请日:2023-12-04
Applicant: AGENCY FOR DEFENSE DEVELOPMENT , Hanbat National University Industry-Academic Cooperation Foundation , AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor: Jae Seang LEE , Sung Min LEE , Joo Hang SON , Soo Il KIM , Eui Rim JEONG , Kyung Woo KIM , Jae Hyun KIM
CPC classification number: H04L25/03159 , H04L27/2607
Abstract: A transmission apparatus of a single carrier-based wireless communication system is proposed. The transmission apparatus may include a transceiver, a memory configured to store one or more instructions; and a processor configured to execute the one or more instructions stored in the memory. The processor may generate data symbols by modulating traffic data, generate a cyclic prefix (CP) on the basis of the data symbols, and generate a pilot symbol for the data symbol. The transceiver may transmit a single carrier frequency domain equalizer (SC-FDE) frame including the data symbol, the CP, and the pilot symbol. The data symbols may include first data symbols and second data symbols. The pilot symbol may be transmitted after transmission of the first data symbols and before transmission of the second data symbols.
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公开(公告)号:US20240077580A1
公开(公告)日:2024-03-07
申请号:US18335191
申请日:2023-06-15
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Junghoon LEE , Byungkoo PARK , Jeil JO
CPC classification number: G01S7/36 , G01S7/2922
Abstract: An apparatus for generating a signal with a non-tracker includes a video signal detecting unit detecting a video signal from a reception signal and outputting a video signal exceeding a threshold, an additional noise generating unit mixing the reception signal with additional noise and outputting the reception signal mixed with the additional noise, a stored signal processing unit storing and outputting the reception signal mixed with the additional noise when the video signal exceeding the threshold is input, and a transmission signal gain controller combining a first signal, which is the reception signal mixed with the additional noise transmitted from the additional noise generating unit, and a second signal stored in and output from the stored signal processing unit, and outputting a combined signal.
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36.
公开(公告)号:US20240053247A1
公开(公告)日:2024-02-15
申请号:US18231555
申请日:2023-08-08
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Seung Jung YU , Hyun Sook JUNG , Hee Soo JUNG , Goon Hyeok KIM , Jae Heon LEE
CPC classification number: G01N15/0826 , G01N1/36 , G01N1/22 , G01N33/0057
Abstract: The present invention provides a practical protection performance test evaluation technology of CBRN protective clothing according to mass transfer characteristics of an aerosol, which is to break away from the existing static CBRN protection test cell and reflect an air flow around the CBRN protection and body motions of individual soldiers, and dynamically design a Swatch test cell in a geometric shape that can be installed inside a wind tunnel, and reflect an aerosol flow that can more closely simulate battlefield environment.
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公开(公告)号:US20240039953A1
公开(公告)日:2024-02-01
申请号:US18359813
申请日:2023-07-26
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Sungyoung CHO , Yongwoo PARK , Geonho LEE , Kyeongsik LEE
IPC: H04L9/40
CPC classification number: H04L63/1458 , H04L63/1416
Abstract: Proposed is a cyberattack scoring method performed by a cyberattack scoring device including a memory storing one or more instructions and a processor executing the one or more instructions stored in the memory. The method may include determining a tactic for each of unit attacks included in a cyberattack based on an Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK) framework. The method may also include determining a score for each of the unit attacks by calculating a weighted sum on attributes depending on the determined tactic according to priorities. The method may further include determining the score of the cyberattack by summing the determined scores of the unit attacks.
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38.
公开(公告)号:US20240005517A1
公开(公告)日:2024-01-04
申请号:US18342741
申请日:2023-06-28
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Daehwan KIM , Hyunja IM , Jeongseok KIM , Daeyeon KIM , Daikyung HYUN , Wonhyuk YANG
IPC: G06T7/20 , H04N23/695
CPC classification number: G06T7/20 , H04N23/695
Abstract: Provided are an apparatus and method for monitoring a moving target based on complementary gimbal control through displacement partitioning, wherein the apparatus includes a processor configured to detect the moving target on the basis of information regarding an image acquired from a camera mounted on a gimbal, acquire first control information of an operator regarding the gimbal, which is input in response to the moving target, acquire second control information regarding the gimbal, which is calculated in response to the operation of detecting the moving target, and control the gimbal on the basis of the first control information and second control information.
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39.
公开(公告)号:US20230400550A1
公开(公告)日:2023-12-14
申请号:US18050410
申请日:2022-10-27
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: San Hae KIM , In Hwan JEONG , Hyun Gyu KWAK , Jong Hwan LEE , Kyu Ha SONG
Abstract: A method for generating deception target information is proposed. The method may include setting third transmission sources pre-selected based on movement path of a jammer as jamming channels, setting a passive radar reference position according to presence or reliability of prior information on position of the passive radar. The method may also include grouping set jamming channels into groups according to operating environment and purpose and analyzing a deception target settable area based on positions of the third transmission sources, the passive radar reference position, and a movement path of the actual target. The method may further include setting a deception target movement path and deriving the deception target information based on the passive radar reference position, the positions of the third transmission sources, the movement path, and a movement path of a virtual deception target for each deception target movement path.
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公开(公告)号:US11831074B1
公开(公告)日:2023-11-28
申请号:US17977331
申请日:2022-10-31
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Seung Ho Kim , Byung Chul Park , Kun Sup Kwon , Jong Wan Heo , Sung Jae Lee , Ki Min Hwang
Abstract: The embodiments generally relate to an antenna device that includes a cover having a specific shape to suppress a sidelobe of an elevation angle gain pattern which is caused by a radio-frequency (RF) device regardless of an avoidance area.
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