公开(公告)号：KR101400125B1

公开(公告)日：2014-05-28

申请号：KR1020130155786

申请日：2013-12-13

Applicant: 국방과학연구소

Inventor： 김관성 ,  정명수 ,  정창식

IPC: G01S13/48

Abstract: A method for compensating low elevation angle errors of a multibeam radar in a multipath environment is provided. Embodiments of the present invention include: a step of receiving at least one target signal by a multibeam radar; a step of calculating an elevation angle of the target from the received target signal using a mono pulse method; a step of using a result, which used the mono pulse method, as an elevation angle of the real target if the elevation angle of the target is out of a first reference range; a step of selectively compensating elevation angle errors of the target using a void matrix calculated from a received beam pattern using search radar near-field measurement if the elevation angle of the target is within the first reference range and exceeds a predetermined threshold value; and a step of compensating the elevation angel errors of the target using an elevation error compensation table which is formed by algebraically converting a ratio of the signal intensity between the received beam and received beam adjacent to the received beam if the elevation angle of the target is within the first reference range and satisfies a second reference range below the predetermined threshold value.

Abstract translation: 提供了一种补偿多波束雷达在多径环境中的低仰角误差的方法。 本发明的实施例包括：通过多波束雷达接收至少一个目标信号的步骤; 使用单脉冲法从接收到的目标信号计算目标的仰角的步骤; 如果目标的仰角不在第一参考范围内，则使用使用单脉冲方法的结果作为实际目标的仰角的步骤; 如果目标的仰角在第一参考范围内且超过预定阈值，则使用搜索雷达近场测量，使用由接收波束图案计算的空隙矩阵来选择性地补偿目标的仰角误差的步骤; 以及使用如果目标的仰角为接收波束和接收波束之间的接收波束和接收波束之间的信号强度的比率形成的仰角误差补偿表，则补偿目标的仰角误差的步骤是 在第一参考范围内，并且满足低于预定阈值的第二参考范围。

公开(公告)号：KR100646873B1

公开(公告)日：2006-11-23

申请号：KR1020060008565

申请日：2006-01-26

Applicant: 국방과학연구소

Inventor： 조명제 ,  정창식 ,  염동진

IPC: H04B7/02

Abstract: An apparatus and a method for canceling an adaptive interference signal are provided to obtain an optimum erroneous alarm rate by adaptively changing an erroneous alarm rate of a CA-CFAR(Call Averaging-Constant False Alarm Rate) detector. A frequency domain conversion unit(202) receives an auxiliary channel output signal for canceling an interference signal included in a main channel output signal, and converts it into a frequency domain. A weight value calculating unit performs calculation by multiplying a certain weight value to the frequency domain-converted signal. An adaptive signal processing unit(401) discriminates whether there is an interference signal in each frequency band, and selectively updates only a frequency band signal in which there exists an interference signal through the weight value calculating unit.

Abstract translation: 提供一种用于消除自适应干扰信号的装置和方法，以通过自适应地改变CA-CFAR（呼叫平均 - 常数假警报速率）检测器的错误警报率来获得最佳错误警报率。 频域转换单元（202）接收用于消除包括在主信道输出信号中的干扰信号的辅助信道输出信号，并将其转换为频域。 权重值计算单元通过将某个权重值乘以频域转换后的​​信号来执行计算。 自适应信号处理单元（401）鉴别每个频带中是否存在干扰信号，并且通过权重值计算单元仅选择性地更新存在干扰信号的频带信号。

公开(公告)号：KR101016316B1

公开(公告)日：2011-02-22

申请号：KR1020100012526

申请日：2010-02-10

Applicant: 국방과학연구소

Inventor： 정창식 ,  최성희 ,  염동진

IPC: G01S7/02

Abstract: PURPOSE: A method for compensating a radar video display based on a true north reference in the surveillance radar system is provided to display all radar videos regardless of the real time change of heading. CONSTITUTION: Whether the veering of a fleet is in a clockwise direction or in a counterclockwise direction is confirmed based on the heading information of a gyro. The interval of an azimuth change pulse is calculated to compensate for the variation amount of heading. The azimuth change pulse is generated according to the calculated interval of the azimuth change pulse.

Abstract translation: 目的：提供一种基于监控雷达系统中的真正北参考补偿雷达视频显示的方法，以显示所有雷达视频，而不考虑航向的实时变化。 规定：基于陀螺仪的航向信息，确认舰队的转向是顺时针方向还是逆时针方向。 计算方位变化脉冲的间隔以补偿航向的变化量。 根据计算出的方位角脉冲间隔产生方位角变化脉冲。