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51.
公开(公告)号:US11610708B2
公开(公告)日:2023-03-21
申请号:US17244960
申请日:2021-04-30
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Duk Young Kim , Yong Sup Ihn , Su-Yong Lee , Dong Kyu Kim , Taek Jeong , Yonggi Jo
Abstract: A magnetic field application device according to an embodiment includes a first coil assembly and a second coil assembly spaced apart in parallel from each other, a power supply configured to apply respective currents to the first coil assembly and the second coil assembly, a controller, and a resonator accommodation unit disposed between the first coil assembly and the second coil assembly, wherein each of the first coil assembly and the second coil includes a coil configured to generate a magnetic field, a guide member connected to a terminal of the coil, a magnetic material mount connected to a terminal of the guide member, and a magnetic material fixed to the magnetic material mount, and wherein the controller is configured to control the currents applied from the power supply to the first coil assembly and the second coil assembly.
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公开(公告)号:US11610133B2
公开(公告)日:2023-03-21
申请号:US17124323
申请日:2020-12-16
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Chang Sik Lee , Jong Seon Kim , Hyeon Jeong Kim
IPC: G01N21/3504 , G06N3/088 , G06N3/045
Abstract: An apparatus for producing an infrared spectrum according to one example of the present disclosure includes: a toxic chemical gas and background infrared spectrum acquisition portion of acquiring a background of a target area and an infrared spectroscopic signal of a gas contaminant plume existing in the background; and a toxic chemical gas infrared spectrum generation portion of training a Generative Adversarial Network (GAN) using acquired background radiation intensity data as learning data, and automatically generating a toxic chemical gas simulation infrared spectrum signal according to an environment setting inputted from a user using a learned GAN. According to the present disclosure, there is an effect that an infrared spectrum of atmosphere contaminated by a toxic chemical gas may be acquired without outdoor experiments using a real toxic chemical gas.
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公开(公告)号:US20230068264A1
公开(公告)日:2023-03-02
申请号:US17891225
申请日:2022-08-19
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Hyeok Gyu CHOI , Seung Ho KIM , Chul Hee CHOI , Ju Hyung LEE
Abstract: Disclosed is a technology for performing, in an electronic apparatus included in a central station, an uplink- or downlink-related operation by allocating a transmission power intensity based on a transmission and reception capability of a terrestrial terminal.
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公开(公告)号:US11555914B2
公开(公告)日:2023-01-17
申请号:US17661732
申请日:2022-05-02
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Jong Soo Ha , Soo Ji Lee , Seok Woo Lee , Jong Hun Jang , Han Jin Lee , Young Sik Park , Jin Eep Roh , Wan Joo Kim
Abstract: Disclosed is a compact integrated apparatus of an interferometric radar altimeter (IRA) and a radar altimeter (RA) capable of performing individual missions by altitude, which includes: a plurality of antennas; a signal processing control unit selecting an RA mode at a low altitude and selecting an IRA mode at a high altitude based on a mode threshold and selecting an FMCW waveform at the low altitude and selecting an FM pulse waveform at the high altitude based on a waveform threshold; and a transceiving unit transmitting a signal by a first antenna positioned at an outermost portion among the plurality of antennas and receiving a signal by an nth antenna positioned at another outermost portion among the plurality of antennas in the RA mode and transmitting a signal through the first antenna and receiving signals through the plurality of antennas in the IRA mode.
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55.
公开(公告)号:US11555885B2
公开(公告)日:2023-01-17
申请号:US16966434
申请日:2019-07-10
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Yeon Soo Jang , In Seon Kim , Sang Won Kim , Beom Jun Park , Un Seob Jeong
IPC: G01S7/38
Abstract: An embodiment of the present invention is a method of transmitting a multibeam jamming signal of an array antenna and including: a signal receiving operation of receiving a radar signal from a plurality of radars; a signal analysis operation of analyzing the received radar signal and identifying an angle and frequency of the signal; a control phase value calculating operation of calculating a control phase value of each array path of the array antenna for each of the identified angles; and a multibeam jamming signal transmission operation of calculating a multibeam jamming signal based on the calculated control phase value and transmitting the multibeam jamming signal for each identified frequency.
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公开(公告)号:US11533022B2
公开(公告)日:2022-12-20
申请号:US17105985
申请日:2020-11-27
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Taehoon Kim , Jaedon Park , Jungho Joe , Youngsin Kim , Jongsung Park , Inwoong Kang , Sanggeun Jeon , Seungwon Park
Abstract: In accordance with an aspect of the present disclosure, there is provided a power amplification apparatus, the apparatus comprising: an input part; a first-1 transformer and a first-2 transformer connected to the input part in parallel; a first amplifier and a second amplifier connected to the first-1 transformer and the first-2 transformer, respectively; a first switch connected to one side of the first-2 transformer; a second-1 transformer and a second-2 transformer connected to the first amplifier and the second amplifier, respectively, and connected to an output part in parallel; and a second switch connected to one side of the second-2 transformer.
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公开(公告)号:US11482980B2
公开(公告)日:2022-10-25
申请号:US17179408
申请日:2021-02-19
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Kil Soo Jeong , Jeong Seop Kim , Ju Hang Sohn , Dong Hyeok Lee , Chang Gyun Kim , Soung Hwan Chi , Heejae Jun , Yong Woo Park
Abstract: A current filter externally coupled to a cable includes a coupling portion coupled to a cable portion to surround the cable portion including at least one cable, the coupling portion including a flexible metal, and a ground portion detachably attached to the coupling portion and transmitting a current flowing through the coupling portion to a ground plane.
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公开(公告)号:US11437051B2
公开(公告)日:2022-09-06
申请号:US16913612
申请日:2020-06-26
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Hong Kook Kim , Seung Ho Choi , Deokgyu Yun , Jung Hyuk Lee
Abstract: In accordance with an aspect of the present disclosure, there is provided a method for identifying a type of a vocoder. The method comprises acquiring identification target bitstreams encoded with a voice signal, acquiring, for each of a plurality of vocoders, a probability that each of the plurality of vocoders is related to the identification target bitstreams from the identification target bitstreams, acquiring waveforms for each decoder of each of the plurality of vocoders by inputting the identification target bitstreams to the each decoder of each of the plurality of vocoders, acquiring intelligibility values for each of the waveforms obtained for the each decoder of each of the plurality of vocoders from the waveforms, and determining the type of the vocoder related to the voice signal from the probability and the intelligibility values for each waveform.
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公开(公告)号:US20220190358A1
公开(公告)日:2022-06-16
申请号:US17547206
申请日:2021-12-09
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Chaenam Im , Jae In Lee , Hyunki Yoon , Yusong Choi , Jang Hyeon Cho
IPC: H01M6/36 , H01M50/509 , H01M6/50
Abstract: Provided are a thermal battery system and an ignition method of the same, wherein the thermal battery system includes: a thermal battery assembly including a plurality of thermal batteries arranged in series and in parallel; an ignition circuit connected to the plurality of thermal batteries in the thermal battery assembly; and a control unit configured to control the ignition circuit such that each of the plurality of thermal batteries in the thermal battery assembly is selectively ignited, wherein the control unit is configured to selectively ignite one of the plurality of thermal batteries in an active matrix manner by controlling an ignition circuit.
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公开(公告)号:US11362905B2
公开(公告)日:2022-06-14
申请号:US16605497
申请日:2019-05-07
Applicant: AGENCY FOR DEFENSE DEVELOPMENT
Inventor: Sang Cheon Park , Eun Jeong Jeong , Seong Lyun Kim
IPC: H04L41/142 , H04L67/12 , G16Y30/00 , G16Y40/35
Abstract: Provided are a data receiving method and device to increase a probability of receiving normal data from a plurality of peripheral devices. A data receiving method of a device includes receiving current data from any one peripheral device of a plurality of peripheral devices, determining whether the received current data is normal data, calculating a probability that next data is normal data, on the basis of a result of the determination, and determining whether to receive the next data according to the calculated probability, in which the next data is data transmitted by the any one peripheral device or another peripheral device.
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