-
-
Patent Agency Ranking
公开(公告)号：KR101239165B1
公开(公告)日：2013-03-05
申请号：KR1020120023270
申请日：2012-03-07
Applicant: 국방과학연구소
IPC: G01S13/44
Abstract: PURPOSE: A target direction estimation method and an apparatus of a mono-pulse radar are provided to increase accuracy of target tracking by continuously controlling the beam steering direction by accurately estimating an error between the current beam steering direction and the real target direction. CONSTITUTION: A target direction estimation apparatus includes a first estimated value calculation unit(400), a second estimated value calculation unit(402) and a beam steering direction correction unit(404). The first estimated value calculation unit calculates a first estimated value about the target direction using an MRC according to signal vector, weighed vector of an arrayed antenna and ML(Maximum Likelihood) technique received from an arrayed antenna after transmitting a mono-pulse. The second estimated value calculation unit calculates the final estimated value about the target direction using the inverse function of a function determining the first estimated value and the MRC. A beam steering direction correction unit(406) corrects the beam steering direction using the final estimated value. [Reference numerals] (400) First estimated value calculation unit; (402) Second estimated value calculation unit; (404) Beam steering direction correction unit
Abstract translation: 目的：提供目标方向估计方法和单脉冲雷达的装置，以通过精确估计当前波束转向方向和实际目标方向之间的误差来连续控制波束转向方向，以提高目标跟踪的精度。 构成：目标方向估计装置包括第一估计值计算单元（400），第二估计值计算单元（402）和波束控制方向校正单元（404）。 第一估计值计算单元使用根据信号矢量，排列天线的加权向量和发送单脉冲之后从阵列天线接收的ML（最大似然））的MRC来计算关于目标方向的第一估计值。 第二估计值计算单元使用确定第一估计值和MRC的函数的反函数来计算关于目标方向的最终估计值。 光束转向方向校正单元（406）使用最终估计值校正光束转向方向。 （附图标记）（400）第一估计值计算单元; （402）第二估计值计算单元; （404）光束转向方向校正单元
-
公开(公告)号：KR101066069B1
公开(公告)日：2011-09-20
申请号：KR1020090007751
申请日：2009-01-30
Applicant: 국방과학연구소
IPC: G01S13/02
Abstract: 본 발명은 레이더 표적탐지 방법 및 레이더 표적탐지 장치에 관한 것으로, 상기 레이더 표적탐지 방법은 레이더 수신 신호에 대한 처리구간을 설정하는 단계와, 상기 신호를 근거로 상기 처리구간에서 표적을 인식하는 단계와, 상기 표적 중 상기 처리구간의 경계영역에서 인식되는 표적을 제거하는 단계와 상기 처리구간의 설정조건을 변경시키는 단계, 및 상기 단계들을 반복하는 단계를 포함한다. 이에 의하여 본 발명은 레이더에서 오표적의 탐지를 완화 또는 방지시키고, 이를 통하여 레이더의 탐지 성능을 증대시킨다.
레이더, 표적, 경계영역-
公开(公告)号：KR101339108B1
公开(公告)日：2013-12-10
申请号：KR1020120080836
申请日：2012-07-24
Applicant: 국방과학연구소
Abstract: The present invention inspects the existence of a clutter by each distance section for a detection signal reflected on a target after separating total detection distance in which beam is steered into multiple distance sections and performs blanking process of the distance section having the clutter and dramatically reduces a detection error rate by the clutter and effectively solves an assignment problem of a memory space. The present invention maximizes a target detection performance by converting a basic detection wave form (LFM) into a PT wave form having an excellent clutter eliminating performance and performs target detection if the clutter generation rate by the distance section is over a predetermined range. Therefore, a target detection method of a radar system according to the present invention has the characteristic of a clutter map technique and uses a small memory space and reduces a detection error and performs the target detection in real time. [Reference numerals] (AA) Start;(BB) Separation of a target and a clutter;(CC) Target detection;(DD) End;(S10) Beam steering angle determination;(S11) Output waveform determination;(S12) Determination waveform is LFM waveform ?;(S13) LFM waveform transmission/reception;(S14) Calculation of an average value of a receiving signal per distance;(S15) Range blanking determination;(S16) Detection signal eleimination within range blanking;(S17) Tarket detection using a detection siganl without range blanking;(S18) Memory renewal;(S19) Tarket detection end ?;(S20) PT waveform transmission/reception
Abstract translation: 本发明在将波束被转向多个距离部分的总检测距离分离并执行具有杂波的距离部分的消隐处理之后，检测由每个距离部分产生的杂波对于在目标上反射的检测信号的存在，并且显着地减少 通过杂波检测错误率，有效解决了存储空间的分配问题。 本发明通过将基本检测波形（LFM）转换成具有良好的杂波消除性能的PT波形来最大化目标检测性能，并且如果距离部分的杂波产生速率超过预定范围，则执行目标检测。 因此，根据本发明的雷达系统的目标检测方法具有杂波映射技术的特征，并且使用小的存储空间并且减少检测误差并且实时地执行目标检测。 （AA）开始;（BB）目标和杂波的分离;（CC）目标检测;（DD）结束;（S10）光束转向角确定;（S11）输出波形确定;（S12） 波形为LFM波形;（S13）LFM波形发送/接收;（S14）每个距离的接收信号的平均值的计算;（S15）范围消隐判定;（S16）范围消隐中的检测信号电平;（S17） （S18）存储更新;（S19）Tarket检测结束;（S20）PT波形发送/接收
-
公开(公告)号：KR1020100088491A
公开(公告)日：2010-08-09
申请号：KR1020090007751
申请日：2009-01-30
Applicant: 국방과학연구소
IPC: G01S13/02
Abstract: PURPOSE: A radar target detection method using processing section size variation, and an apparatus thereof are provided to improve the detection performance of a radar by preventing falsely detecting a target in a radar. CONSTITUTION: A processing unit(801a-801c) distribute the received radar signal according to a processing signal, uses the input signal as an input value to recognize a target in a processing section. A control unit(802) eliminates a target recognized in a boundary area of a processing section. A setting condition of the processing section is repeatedly modified.
Abstract translation: 目的：提供一种使用处理部分尺寸变化的雷达目标检测方法及其装置，用于通过防止在雷达中虚拟检测目标来提高雷达的检测性能。 构成：处理单元（801a-801c）根据处理信号分配接收到的雷达信号，使用输入信号作为输入值来识别处理部中的目标。 控制单元（802）消除在处理部分的边界区域中识别的目标。 反复修改处理部的设定条件。
-
-
-
-
-
Search Results
6
records
(took 0.018 seconds)
