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公开(公告)号：KR1020180097846A
公开(公告)日：2018-09-03
申请号：KR1020170024528
申请日：2017-02-24
Applicant: 국방과학연구소
Abstract: 본발명의고정밀 FDOA 추정시스템의위상변이를이용한고정밀 FDOA 추정방법은신호원(3)의방사된펄스열(4)에대해신호샘플링과수집및 검출이이루어지는이격된다수의수신기(1)에의한신호수집단계, 신호샘플링후 수집및 검출된펄스신호에대한순시위상측정시간오차의영향을제거한순시위상측정이이루어지는수신기(1)의고정밀위상측정단계, 순시위상측정의결과에서다수의수신기(1)간 FDOA를계산하는중앙처리기(2)의 FDOA 측정단계로구현됨으로써다수로구성된각 수신기(1)에대한측정오차최소화가이루어지는특징을구현할수 있다.
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公开(公告)号：KR101850394B1
公开(公告)日：2018-04-19
申请号：KR1020160090963
申请日：2016-07-18
Applicant: 국방과학연구소
IPC: H04B17/00 , H04B17/391 , H04L12/26
Abstract: 본발명에따른시나리오기반의 RF 위협신호발생장치는, 위협제원을모의하도록구성되는위협모의부; 수신기제원을모의하도록구성되는수신기모의부; 상기 RF 위협신호발생장치주변의신호환경을모의하도록구성되는신호환경모의부; 상기모의된위협제원, 수신기제원및 신호환경을이용해서장비운용시나리오를생성하도록구성되는시나리오모의부; 시나리오기반하여디지털데이터신호를생성하는모의신호생성부; 및상기디지털데이터신호를 RF발생기용데이터신호로변환하고 RF신호발생기에전송하는 RF신호발생기연동부를포함하는디지털신호발생기; 및상기 RF신호발생기연동부로부터 RF 신호발생용데이터와제어신호를입력받으며, RF 신호발생명령수신시 RF 신호를발생시키는 RF신호발생부; 및데이터장입명령을수신시 상기 RF신호발생기연동부에서 RF 발생용데이터로변환된데이터를내장메모리에저장하는데이터저장부를포함하는 RF신호발생기를포함하고, 시스템의성능을다양한위협조건및 환경모의를통해체계적이고효과적으로수행할수 있다.
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公开(公告)号：KR101651540B1
公开(公告)日：2016-08-26
申请号：KR1020150020983
申请日：2015-02-11
Applicant: 국방과학연구소
Abstract: 본발명의고속 IFF Mode C 정밀고도분석방법은수신기가수집한 IFF Mode C 신호가 TOA(Time of Arrival), 주파수, 펄스폭, 펄스세기정보가포함된 PDW(Pulse Description Word)의집합으로구성되도록수신펄스열을정리하고, 상기수신펄스열에포함된 Gillham Code의 A, B, C, D 코드의각각을 10진화코드변수인 G코드(D), G코드(A), G코드(B), G코드(C)로변환하며, 상기 G코드(D), 상기 G코드(A), 상기 G코드(B), 상기 G코드(C)를순차적으로계산해 altitude 값으로저장하며, 계산된 altitude 값을이용해최종고도분석결과를추출함으로써수집된펄스를이용하여 IFF Mode C를구성하는 Gillham Code의분석으로부터고도정보가산출되고, 특히최종고도분석결과도출이방대한크기와내용을담은테이블방식대비신속하고정확하게구해지는특징이있다.
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Patent Agency Ranking
公开(公告)号：KR101468560B1
公开(公告)日：2014-12-04
申请号：KR1020130156628
申请日：2013-12-16
Applicant: 국방과학연구소
IPC: G01S13/08
Abstract: 본 발명은 레이더 신호 탐지 기술에 관한 것으로서, 더 상세하게는 고밀도의 다중 레이더 신호 환경에서 그룹화된 각 그룹을 구성하는 펄스의 방위, 주파수 정보를 이용하여 입력데이터를 생성하고 마할라노비스 거리를 계산하여 이상치를 탐지하고 관리하는 방법에 대한 것이다.
본 발명에 따르면, 데이터의 분포 모양을 고려한 거리 척도인 마할라노비스 거리를 이용하여 레이더 신호에 대한 이상치 펄스를 탐지함으로써 이후 신호 분석 단계인 펄스열 분리의 성능을 향상시키는 것이 가능하다.Abstract translation: 本发明涉及一种检测雷达信号的技术，更具体地说，涉及使用分组在高密度多雷达信号环境中的每组中的频率信息和脉冲的轴承来产生输入数据的方法，以及 计算马氏距离以检测和管理异常值。 根据本发明，该方法能够通过使用考虑到数据分布形状的距离标准的马哈拉诺比斯距离检测雷达信号的异常脉冲来提高信号分析步骤中的分离脉冲串的性能。
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公开(公告)号：KR101357689B1
公开(公告)日：2014-02-04
申请号：KR1020120097908
申请日：2012-09-04
Applicant: 국방과학연구소
Abstract: The present invention relates to a method for deinterleaving a pulse train of a radar signal based on a divide and conquer method. A method for deinterleaving a pulse train of a radar signal according to an embodiment of the present invention includes the steps of: dividing a pulse train of a radar signal into a plurality of groups first on the ground of time of arrival (TOA); estimating pulse repetition interval (PRI) according to a plurality of secondly divided groups, and extracting pulse trains having the estimated PRI; calculating specification about the extracted pulse trains; merging pulse trains having a fixed PRI type among the extracted pulse trains; and merging pulse trains having a jitter PRI type among the extracted pulse trains. [Reference numerals] (AA) START; (BB) END; (S100) Divide pulse train of radar signal into plural groups first on the ground of TOA; (S200) Divide plural groups divided first into plural groups secondly on the ground of fixed number; (S300) Estimate PRI per secondly divided plural groups, and extract pulse trains having estimated PRI; (S400) Calculate specification about extracted pulse trains; (S500) Merging pulse trains having fixed PRI type; (S600) Merging pulse trains having jitter PRI type
Abstract translation: 本发明涉及一种基于划分和征服方法来对雷达信号的脉冲串进行解交织的方法。 根据本发明的实施例的用于对雷达信号的脉冲串进行解交错的方法包括以下步骤：首先将雷达信号的脉冲串划分成多个组，基于到达时间（TOA）; 根据多个二次分组估计脉冲重复间隔（PRI），并提取具有估计PRI的脉冲串; 计算提取的脉冲序列的规格; 在提取的脉冲串中合并具有固定PRI类型的脉冲串; 并且在提取的脉冲串中合并具有抖动PRI类型的脉冲串。 （附图标记）（AA）START; （BB）END; （S100）首先将雷达信号的脉冲序列划分为TOA的多个组; （S200）将固定数量的第二次划分为多个组的多个组划分; （S300）每秒分割多组估计PRI，提取具有估计PRI的脉冲串; （S400）计算提取的脉冲串的规格; （S500）合并具有固定PRI类型的脉冲串; （S600）合并具有抖动PRI类型的脉冲串
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公开(公告)号：KR101343531B1
公开(公告)日：2013-12-20
申请号：KR1020120127688
申请日：2012-11-12
Applicant: 국방과학연구소
Abstract: The present invention relates to a hidden Markov model (HMM)-based radar signal PRI modulation type recognition method. An HMM-based radar signal PRI modulation type recognition method given in the implementation example of the present invention generates an acceleration code using time of arrival data of a radar signal pulse and applies the acceleration code to the preset HMM model by modulation type, thereby accurately recognizing the modulation type of a pulse repetition interval. [Reference numerals] (AA) Start;(BB) Yes;(CC) No;(DD) End;(S100) Generate HMM (貫_1-貫_7);(S200) Generate an A code;(S300) Calculate possibility (P(X¦貫_K(P(貫_K));(S400) Select HMM (貫^*=argmax 貫_K(P(X¦貫_K)P(貫_K));(S500) Excess a threshold value? (P(X¦貫^*(P(貫^*)>罐_th);(S600) Generate a result code;(S700) Determine UNK;(S800) Recognize a PRI modulation type
Abstract translation: 本发明涉及一种基于隐马尔可夫模型（HMM）的雷达信号PRI调制型识别方法。 在本发明的实施例中给出的基于HMM的雷达信号PRI调制型识别方法使用雷达信号脉冲的到达时间数据生成加速码，并通过调制类型将加速度代码应用于预设的HMM模型，从而准确地 识别脉冲重复间隔的调制类型。 （AA）开始;（BB）是;（CC）否;（DD）结束;（S100）生成HMM（贯_1-贯_7）;（S200）生成A代码;（S300） 计算可能性（P（X？_ _ _（P（贯）_K））;（S400）选择HMM（贯^ * = argmax〜_K（P（X） （S500）超过阈值？（P（X贯贯^ *（（（贯贯贯贯贯贯贯贯贯贯贯贯贯））））））））modulation modulation modulation modulation modulation;;;;;（（（（（（（（（（;;;; 类型
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公开(公告)号：KR101331833B1
公开(公告)日：2013-11-22
申请号：KR1020120112613
申请日：2012-10-10
Applicant: 국방과학연구소
Abstract: The present invention relates to a position detection method for targets by selecting receivers for calculating the position and setting the center between the receivers as a virtual receiving position using a reference table which contains information about the position of the receivers in multiple directions and information about the angle of arrival. Errors in position calculations are reduced and reliability in the position calculations is improved by selectively setting the receivers and the virtual receiving position. [Reference numerals] (AA) Start;(BB) Measure the time of arrival regarding an object;(CC) Measure difference in the time of arrival;(DD) Calculate the angle of arrival using the difference and the position of a receiver;(EE) Select a virtual receiving position;(FF) Determine a reference angle of arrival using a reference table;(GG) Detect the position of the object;(HH) End
Abstract translation: 本发明涉及一种用于目标的位置检测方法，通过选择接收机来计算位置并将接收机之间的中心设置为虚拟接收位置，使用参考表，该参考表包含关于多个方向上的接收机的位置的信息以及关于接收机的信息 到达角度 通过选择性地设置接收机和虚拟接收位置，降低了位置计算中的错误并提高了位置计算的可靠性。 （AA）开始;（BB）测量物体到达时间;（CC）测量到达时间的差异;（DD）使用接收机的差值和位置计算到达角度; （EE）选择虚拟接收位置;（FF）使用参考表确定参考到达角度;（GG）检测对象的位置;（HH）结束
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公开(公告)号：KR101252531B1
公开(公告)日：2013-04-09
申请号：KR1020130006776
申请日：2013-01-22
Applicant: 국방과학연구소
Abstract: PURPOSE: A target location tracking device is provided to improve location tracking performance on a moving target by adaptively determining a noise parameter of a state model of a Kalman filter depending on the circumstances using a location measurement value of a measured target and location information of multiple separated receivers. CONSTITUTION: Multiple receivers(10) are spaced from one another, receive a radiation signal(S) from a target(T), and transmits a reception signal corresponding to the received signal to a control unit(20). The receivers transmit location information of each receiver to the control unit. The control unit consists of a measurement module, an initial value setting module, a noise parameter determination module, and a target location tracking module. The target measurement module measures a target location at a specific time using information such as TOA(Time of Arrival) and AOA(Angle of Arrival) of the received signal based on the location and target of the receiver. The initial value setting module sets up an initial value of a Kalman filter execution module, using an initial target location measurement value of the target or a predetermined value. The noise parameter determination module adaptively determines a noise parameter of a state module of the Kalman filter using the measured target location measurement value and the location information of the receiver whenever the location of the target is completely measured.
Abstract translation: 目的：提供目标位置跟踪装置，以通过使用测量目标的位置测量值和多个位置信息的情况自适应地确定卡尔曼滤波器的状态模型的噪声参数来改善移动目标的位置跟踪性能 分离的接收器。 构成：多个接收器（10）彼此间隔开，从目标（T）接收辐射信号（S），并将与接收到的信号相对应的接收信号发送到控制单元（20）。 接收机将每个接收机的位置信息发送到控制单元。 控制单元包括测量模块，初始值设定模块，噪声参数确定模块和目标位置跟踪模块。 目标测量模块基于接收机的位置和目标，使用诸如TOA（到达时间）和接收信号的AOA（到达角度）之类的信息来测量特定时间的目标位置。 初始值设定模块使用目标的初始目标位置测量值或预定值来设置卡尔曼滤波器执行模块的初始值。 噪声参数确定模块，当目标的位置被完全测量时，使用所测量的目标位置测量值和接收机的位置信息自适应地确定卡尔曼滤波器的状态模块的噪声参数。
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