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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：KR101408076B1
公开(公告)日：2014-06-18
申请号：KR1020140004161
申请日：2014-01-13
Applicant: 국방과학연구소
IPC: G06N3/12
CPC classification number: G06N3/126
Abstract: The present invention relates to a method for recognizing a PRI modulation type and a device thereof, capable of being easily automated due to a simplified algorithm, lowering time complexity, and improving a modulation type recognition ratio. The method for recognizing a PRI modulation type according to the present invention comprises: a step of training a neural network using a heredity algorithm; a step of generating a DDTOA code using the time of arrival (TOA) of an input pulse; a step of generating a DDTOA matrix from the DDTOA code; a step of extracting seven PRI modulation type elements from the DDTOA matrix; a step of recognizing the PRI modulation type by inputting the seven elements to the neural network and outputting an output layer result of the neural network; a step of generating a result code from the output layer result of the neural network; and a step of recognizing the PRI modulation type by comparing the result code with a predetermined PRI modulation code.
Abstract translation: 本发明涉及一种用于识别PRI调制类型的方法及其装置，其能够由于简化的算法而容易地自动化，降低了时间复杂度，并提高了调制类型识别率。 根据本发明的用于识别PRI调制类型的方法包括：使用遗传算法训练神经网络的步骤; 使用输入脉冲的到达时间（TOA）产生DDTOA代码的步骤; 从DDTOA代码生成DDTOA矩阵的步骤; 从DDTOA矩阵中提取七个PRI调制类型元素的步骤; 通过将七个要素输入到神经网络并输出神经网络的输出层结果来识别PRI调制类型的步骤; 从所述神经网络的输出层结果生成结果代码的步骤; 以及通过将结果代码与预定的PRI调制码进行比较来识别PRI调制类型的步骤。
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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：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：KR101326096B1
公开(公告)日：2013-11-07
申请号：KR1020120053300
申请日：2012-05-18
Applicant: 국방과학연구소
Abstract: A pulse description word (PDW) data preprocessing and detection method for modulation analysis in a pulse are disclosed. A lot of PDW data, which is generated by a channelized digital receiver with radar signals, is successively arranged according to the time of arrival (TOA). The PDW data which the TOA, a frequency, and a pulse width are overlapped is deleted. When the frequency is swept and the PDW data divided into a plurality of channels is generated, the PDW data is combined based on a set of sweep information and generation channel information. When the frequency is hopping and the PDW divided into the channels is generated, the PDW data is combined based on the information for the TOA and the pulse width. A PDW used for the modulation analysis in the pulse is selected based on a performance result. Optical PDW data capable of accurately recognizing the type of the modulation in the pulse corresponding to an importance identification variable is detected. The importance identification variable improves the radar signal identification ability of an electron source system. [Reference numerals] (AA) Start;(BB) End;(S100) Arrange PDW based on time of arrival (TOA) of pulse;(S101) Check and process PDW where channels are overlapped and adjacent;(S102) Process channel changed PDW with frequency sweep;(S103) Process channel changed PDW with frequency hopping;(S104) Select optimal PDW for using deviation analysis in pulse
Abstract translation: 公开了一种用于脉冲调制分析的脉冲描述字（PDW）数据预处理和检测方法。 由具有雷达信号的信道化数字接收机产生的许多PDW数据根据到达时间（TOA）被依次排列。 删除TOA，频率和脉冲重叠的PDW数据。 当频率被扫描并且被分成多个信道的PDW数据被生成时，基于一组扫描信息和生成信道信息来组合PDW数据。 当频率为跳频并且PDW分为通道被生成时，PDW数据基于TOA的信息和脉冲宽度被组合。 基于性能结果选择用于脉冲中调制分析的PDW。 检测能够精确地识别对应于重要性识别变量的脉冲中的调制类型的光PDW数据。 重要性识别变量提高了电子源系统的雷达信号识别能力。 （参考号）（AA）开始;（BB）结束;（S100）基于脉冲到达时间（TOA）对PDW进行排列;（S101）检查并处理通道重叠和相邻的PDW;（S102）处理通道改变 PDW具有频率扫描;（S103）过程通道跳频改变PDW;（S104）选择脉冲中使用偏差分析的最优PDW
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Patent Agency Ranking
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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公开(公告)号：KR102219341B1
公开(公告)日：2021-02-23
申请号：KR1020200048861
申请日：2020-04-22
Applicant: 국방과학연구소
IPC: H04B1/7115 , H04B1/10 , G01S7/288
Abstract: 본발명은 FM 신호기반의수동형코히어런트위치추정(PCL) 시스템에서기준채널내의다중경로에의한간섭원을제거하는간섭원제거장치및 방법에관한것으로서, FM 송신기로부터송신된기준신호및 다중경로간섭원에의한간섭신호를수신하는안테나부와, 상기간섭원제거장치가배치된위치에기초하여사전예측된제1 간섭원의수신이득을감쇄하기위한고정가중치행렬을생성하는고정가중치생성부와, 상기 FM 신호의포락선크기에기초하여사전예측되지않은제2 간섭원을제거하기위한가변가중치벡터를생성하는가변가중치생성부와, 상기고정가중치행렬및 상기가변가중치벡터에기초하여최종가중치벡터를생성하는최종가중치생성부및 상기최종가중치벡터에기초하여상기제1 간섭원및 상기제2 간섭원이제거된기준채널 I/Q(In-phase and Quadrature) 신호를출력하는가중치적용부를포함한다.
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