-
-
公开(公告)号：KR101812967B1
公开(公告)日：2017-12-28
申请号：KR1020170067159
申请日：2017-05-30
Applicant: 국방과학연구소
IPC: G01S7/02
Abstract: 본발명은단말기의허위신호원제거방법에관한것으로, 상기허위신호원제거방법은, 제1 위치에서소정기준을만족하는신호가탐지되는경우, 상기탐지된신호에대응하는제1 신호방향선을생성하는단계, 신호원목록에상기제1 신호방향선과동일한제원의신호방향선으로구성된신호원이적어도하나존재하는경우, 상기제1 신호방향선에대한마할라노비스거리(mahalanobis distance)의최소값을산출하는단계, 상기최소값이제1 임계값보다작은경우, 상기최소값을가지는제1 신호원에상기제1 신호방향선을추가하는단계및 상기제1 신호방향선이상기제1 신호원에추가되는경우, 상기제1 신호방향선을이용하여상기제1 신호원의위치를산출하는단계를포함한다.
Abstract translation: 本发明涉及一种用于终端的伪信号源去除方法，其中当在第一位置处检测到满足预定标准的信号时，检测与检测到的信号相对应的第一信号方向线 当存在至少一个信号源时，计算第一信号方向线的马氏距离的最小值，所述信号源包括与信号源列表中的第一信号方向线相同规格的信号方向线 如果最小值现在小于一个阈值并且将第一信号方向线添加到第一信号方向线异常信号源，则将第一信号方向线添加到具有最小值的第一信号源， 并且使用第一信号方向线来计算第一信号源的位置。
-
23.发明公开광대역 다채널 수신기에서 채널간 간섭에 의한 오탐지 쇼트 펄스 PDW 제거 방법 및 장치 有权PDW方法和装置，用于消除由于宽带多信道接收机中的信道间干扰引起的短脉冲引起的误检测的脉冲描述字
公开(公告)号：KR1020170021150A
公开(公告)日：2017-02-27
申请号：KR1020150115589
申请日：2015-08-17
Applicant: 국방과학연구소
Abstract: 본발명은광대역다채널수신기에관한것으로서, 더상세하게는레이더신호를수신하여 PDW(Pulse Description Word)를생성하는일반적인전자전지원(ES, Electronic Warfare Support) 광대역다채널디지털수신기구조에서신호세기가매우큰 레이더펄스신호가인입시채널간섭에의해인접채널에강한신호가유입되어 short pulse가오탐지되는문제가발생하면이들오탐지 PDW를제거하는방법및 장치에대한것이다.
-
Patent Agency Ranking
公开(公告)号：KR1020150001352A
公开(公告)日：2015-01-06
申请号：KR1020130074445
申请日：2013-06-27
Applicant: 국방과학연구소
Abstract: 본 발명은 레이더 신호 인식 기술에 관한 것으로서, 더 상세하게는 탐지된 레이더 신호의 반송파 복구 없이 N 중첩 위상차(N Overlapping Phase Difference)를 이용하여 PSK(Phase Shift Keying)로 구분된 레이더 신호의 세부 변조 형태인 BPSK(Binary Phase Shift Keying), QPSK(Quadrature Phase Shift Keying) 변조 형태를 자동으로 인식하는 방법에 관한 것이다.
본 발명에 따르면, 탐지된 레이더 신호가 PSK 변조형태인 경우 N 중첩 위상차를 구하고, N 중첩 위상차를 기반으로 한 히스토그램의 피크 개수를 이용하여 BPSK, QPSK로 세부적으로 구분함으로써, 자동적으로 BPSK, QPSK 등의 세부 변조형태를 인식할 수 있다.Abstract translation: 本发明涉及雷达信号识别技术，更具体地说，涉及一种用于自动识别二进制相移键控（BPSK）或正交相移键控（QPSK）形式的详细调制形式的雷达信号分类方法 通过使用N个重叠相位差的相移键控（PSK），而不恢复检测到的雷达信号的载波。 根据本发明，当检测到的雷达信号具有PSK形式时，获得N个重叠相位差，并且通过使用基于N个重叠相位差的直方图的峰值数将雷达信号分类为BPSK或QPSK 由此可以自动识别诸如BPSK或QPSK的详细调制形式。
-
公开(公告)号：KR101333596B1
公开(公告)日：2013-11-26
申请号：KR1020120127684
申请日：2012-11-12
Applicant: 국방과학연구소
Abstract: The present invention relates to an apparatus and a method for TDOA correction between radio frequency receivers. According to the apparatus and the method of the present invention, a central control device stored with a TDOA correction table actually can correct TDOA (Time Difference Of Arrival) easily in extracting the TDOA on the basis of PDW (Pulse Description Word) TOA (Time Of Arrival) by receiving the PDW of a threat signal received from each radio frequency receiver, by realizing an apparatus capable of generating PDW through the radio frequency receiver and then constituting the TDOA correction table between radio frequency receivers according to frequency, receiving channel and internal path and receiving power of receiving channel under the condition of having theoretically equal TOA in order to minimize error of position estimation. [Reference numerals] (AA) Start;(BB) End;(S10) Generate a high frequency signal;(S11) Divide the high frequency signal into multiple channels and provide the channels to a frequency receiver;(S12) Generate precision frequency information and precision sight information;(S13) Generate PDW having TOA with nanosecond resolution in each frequency receiver by being synchronized with the generated information;(S14) Generate a TDOA correction table by comparing the difference of TOA generated in each frequency receiver;(S15) Store the generated TDOA correction table in a central control device;(S16) Correct TDOA of the each receiver in the central control device by using the stored TDOA correction table
Abstract translation: 本发明涉及用于射频接收机之间的TDOA校正的装置和方法。 根据本发明的装置和方法，存储有TDOA校正表的中央控制装置实际上可以基于PDW（脉冲描述字）TOA（时间）提取TDOA来容易地校正TDOA（到达时差） 通过接收从每个射频接收机接收到的威胁信号的PDW，通过实现能够通过射频接收机产生PDW的装置，然后根据频率，接收信道和内部的频率构成射频接收机之间的TDOA校正表 在理论上等于TOA的条件下接收信道的路径和接收功率，以最小化位置估计误差。 （参考号）（AA）开始;（BB）结束;（S10）产生高频信号;（S11）将高频信号分割成多个信道，并将频道提供给频率接收机;（S12）生成精度频率信息 （S13）通过与所生成的信息同步，在每个频率接收机中产生具有纳秒分辨率的TOA的PDW;（S14）通过比较在每个频率接收机中产生的TOA的差异来产生TDOA校正表;（S15） 将生成的TDOA校正表存储在中央控制装置中;（S16）通过使用存储的TDOA校正表来校正中央控制装置中的每个接收机的TDOA
-
公开(公告)号：KR101313051B1
公开(公告)日：2013-09-30
申请号：KR1020120030199
申请日：2012-03-23
Applicant: 국방과학연구소
IPC: G01S13/78
Abstract: PURPOSE: A pulse repetition interval (PRI) modulation form recognizing method and a recognition apparatus applying the same are provided to easily automatize by simplifying an algorithm and to have low temporal complexity. CONSTITUTION: A PRI modulation form recognizing apparatus (200) comprises a chain code acquiring unit (210), a state transition probability matrix acquiring unit (220), a PRI modulation form separation factor acquiring unit (230), and a modulation form determining unit (240). The code acquiring unit obtains a chain code for an input pulse row. The state transition probability matrix acquiring unit obtains a state transition probability matrix based on the chain code. The PRI modulation form separation factor acquiring unit obtains a PRI modulation form separation factor based on the state transition probability matrix. The modulation form determining unit obtains an output result for a predetermined neural network based on the state transition probability matrix and the modulation form separation factor and determines a PRI modulation form based on the output result. [Reference numerals] (110) Signal receiving unit; (120) Signal processing unit; (200) Modulation form recognizing apparatus; (210) Chain code acquiring unit; (220) State transition probability matrix acquiring unit; (230) PRI modulation form separation factor acquiring unit; (240) Modulation form determining unit; (250) Nerve network discipline unit; (260) Nerve network processing unit
Abstract translation: 目的：提供脉冲重复间隔（PRI）调制形式识别方法和应用它的识别装置，以通过简化算法并具有低的时间复杂度来容易地自动化。 构成：PRI调制形式识别装置（200）包括链码获取单元（210），状态转移概率矩阵获取单元（220），PRI调制形式分离因子获取单元（230）和调制形式确定单元 （240）。 代码获取单元获得用于输入脉冲行的链码。 状态转移概率矩阵获取单元基于链码获得状态转移概率矩阵。 PRI调制形式分离因子获取单元基于状态转移概率矩阵获得PRI调制形式分离因子。 调制形式确定单元基于状态转移概率矩阵和调制形式分离因子获得预定神经网络的输出结果，并根据输出结果确定PRI调制形式。 （附图标记）（110）信号接收单元; （120）信号处理单元; （200）调制形式识别装置; （210）链码获取单元; （220）状态转移概率矩阵获取单元; （230）PRI调制形式分离因子获取单元; （240）调制形式确定单元; （250）神经网络纪律单位; （260）神经网络处理单元
-
公开(公告)号：KR1020130045597A
公开(公告)日：2013-05-06
申请号：KR1020110109900
申请日：2011-10-26
Applicant: 국방과학연구소
Abstract: PURPOSE: A multi-channel digital reception method and an apparatus thereof are provided to be directly applicable to a TDOA based positioning system requiring a high definition TOA[Time of Arrival] measurement scalability. CONSTITUTION: An AD converter(100) converts four or more RF signals received from multiple antennas into digital signals. A power measurement and channel selection unit(200) selects a channel having a biggest reception signal and the reception channel of left and right thereof after receiving a multi-channel digital signal from the AD converter and measuring the power of the signal of each channel. A high definition TOA measuring unit(300) measures the TOA of the biggest reception signal by using the high precision visual data of inside or outside in the signal of the biggest reception signal. A channelizer/phase detector(400) measures a signal frequency, a signal strength, a pulse width, and a signal phase. An AOA(Angle of Arrival) measuring unit(500) measures an AOA by using the signal strength of each channel and a phase at the same time. A PDW generating unit(600) generates a PDW as a pulse unit by assembling the measured result and outputs the PDW to an external link device by storing in a fixed time or number. [Reference numerals] (200) Power measurement and channel selection unit; (300) High definition TOA measuring unit; (500) AOA measuring unit; (600) PDW generating unit
Abstract translation: 目的：提供多通道数字接收方法及其装置，以直接应用于需要高清晰度TOA [到达时间]测量可扩展性的基于TDOA的定位系统。 构成：AD转换器（100）将从多个天线接收的四个或更多个RF信号转换为数字信号。 功率测量和信道选择单元（200）在从AD转换器接收到多通道数字信号并测量每个信道的信号的功率之后，选择具有最大接收信号的信道和其左右的接收信道。 高清晰度TOA测量单元（300）通过使用最大接收信号的信号中的内部或外部的高精度视觉数据来测量最大接收信号的TOA。 信道化器/相位检测器（400）测量信号频率，信号强度，脉冲宽度和信号相位。 AOA（到达角度）测量单元（500）通过使用每个通道的信号强度和相位同时测量AOA。 PDW生成单元（600）通过组装测量结果来生成PDW作为脉冲单元，并通过以固定的时间或数量存储将PDW输出到外部链路设备。 （附图标记）（200）功率测量和通道选择单元; （300）高清晰度TOA测量单元; （500）AOA测量单元; （600）PDW发电机组
-
公开(公告)号：KR101235059B1
公开(公告)日：2013-02-19
申请号：KR1020110129270
申请日：2011-12-05
Applicant: 국방과학연구소
IPC: G01S13/06
Abstract: PURPOSE: A radar signal modulation type identification unit and a method thereof are provided to reliably identify NM, FSK, PSK, LFM and NLFM modulation types of a radar reception signal. CONSTITUTION: A generation unit(100) generates more than one I information and Q information by reading IQ from an analysis target PDW(Pulse Description Word) of a received radar signal. An identification unit(200) is connected with the generation unit and includes an NM identification unit(210), an FSK identification unit(230), a PSK identification unit(250) and an LFM identification unit(270). The identification unit identifies an NM modulation type of the received radar reception signal by applying FFT(Fast Fourier Transform) and STFT(Short Time Fourier Transform) to the generated I information and Q information. [Reference numerals] (100) Generation unit; (211) PBT calculation unit; (212) PBT dB calculation unit; (213) IQ processing unit; (214) Fc calculation unit; (215) NM identification unit; (231) G_C1 calculation unit; (232) G_C2 calculation unit; (233) FSK identification unit; (251) Kf calculation unit; (252) Pe setting unit; (253) Vt calculation unit; (254) PSK identification unit; (271) Noise processing unit; (272) Data generation unit; (273) Instantaneous phase difference calculation unit; (274) Instantaneous phase difference generation unit; (275) Maximum value index acquisition unit; (276) Minimum value index acquisition unit; (277) Pair calculation unit; (278) Template generation unit; (279) C_C12 calculation unit; (280) LFM identification unit
Abstract translation: 目的：提供一种雷达信号调制型识别单元及其方法，以可靠地识别雷达接收信号的NM，FSK，PSK，LFM和NLFM调制类型。 构成：生成单元（100）通过从接收到的雷达信号的分析目标PDW（脉冲描述字）读取IQ来生成多于一个I信息和Q信息。 识别单元（200）与生成单元连接，包括NM识别单元（210），FSK识别单元（230），PSK识别单元（250）和LFM识别单元（270）。 识别单元通过对生成的I信息和Q信息应用FFT（快速傅里叶变换）和STFT（短时傅里叶变换）来识别接收到的雷达接收信号的NM调制类型。 （附图标记）（100）生成单元; （211）PBT计算单位; （212）PBT dB计算单位; （213）IQ处理单元; （214）Fc计算单元; （215）NM识别单位; （231）G_C1计算单位; （232）G_C2计算单位; （233）FSK识别单位; （251）Kf计算单位; （252）Pe设定单位; （253）Vt计算单位; （254）PSK识别单元; （271）噪声处理单元; （272）数据生成单元; （273）瞬时相位差计算单元; （274）瞬时相位差生成部; （275）最大价值指数收购单位; （276）最低指数收购单位; （277）对计算单位; （278）模板生成单元; （279）C_C12计算单位; （280）LFM识别单元
-
-
-
-
-
-
-
Search Results
28
records
(took 0.027 seconds)
