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公开(公告)号：KR101357061B1
公开(公告)日：2014-02-04
申请号：KR1020120039480
申请日：2012-04-17
Applicant: 국방과학연구소
IPC: G01S13/89
Abstract: 본 발명은 위성 또는 항공기에 탑재 하는 영상 레이더 (SAR : Synthetic Aperture Radar, 합성 개구면 레이더) 운용을 위한 타이밍 신호 발생을 위한 데이터 구조와 타이밍 발생 장치에서의 발생 방법에 관한 것이다. SAR 운용 시 사용되는 타이밍 신호의 구조적인 특성을 이용하여 타이밍 신호를 정의하기 위한 데이터 구조를 계층화하여 설계 한다. 이를 통해 타이밍 신호 구조가 개념적이고 인식 가능한 형태로 표현되며, 타이밍 신호 구조를 표현하는 파라미터의 데이터 양이 최소화 되어 탑재체를 원거리 무선으로 접근해야 하는 지상에서 타이밍 구조 변경 및 튜닝 작업이 용이하게 된다. 파라미터 데이터의 최소화는 탑재체 내에서 타이밍 발생기로의 데이터 전송 시간 역시 단축시키기 때문에 다중 영상 모드의 연속 수행 간 간격을 줄일 수 있게 한다. 또한 타이밍 구조 변경이 필요한 모든 부분이 파라미터화 되어 있기 때문에 어떠한 변경에도 유연하며, SAR 영상 획득 시 기하학적 특성을 보정하기 위한 영상 모드 수행 중 타이밍 신호 변경도 가능하다. 본 발명에서는,타이밍 발생 장치에서의 발생 방법 또한 단순 반복 루틴의 조합으로 가능한 구조를 제안한다.
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公开(公告)号：KR1020130116974A
公开(公告)日：2013-10-25
申请号：KR1020120039480
申请日：2012-04-17
Applicant: 국방과학연구소
IPC: G01S13/89
Abstract: PURPOSE: A data structure and a timing signal generation method are provided to flexibly convert a timing signal and to reduce the successive execution interval of a multiple image mode by using structural characteristics. CONSTITUTION: A synthetic aperture radar (SAR) timing generation device receives data for generating a time line through a system bus, stores the time line in a memory, and transmits a timing generation signal to sub-systems. Timing signal generation reads each construction pattern and a lasting time value from a pulse repetition interval (PRI) cluster identification (ID) table, generates a timing signal in real time, and changes a parameter according to a sampling start time change flag. [Reference numerals] (AA) SAR timing generator; (BB) Timeline data transmission; (CC) System bus; (DD) Timeline data memory; (EE) Mode timeline comprising logic generator; (FF) Timing signal generator
Abstract translation: 目的：提供数据结构和定时信号产生方法，以灵活地转换定时信号，并通过使用结构特征来减少多图像模式的连续执行间隔。 构成：合成孔径雷达（SAR）定时生成装置接收通过系统总线生成时间线的数据，将时间线存储在存储器中，并将定时生成信号发送到子系统。 定时信号产生从脉冲重复间隔（PRI）簇识别（ID）表读取每个构造模式和持续时间值，实时生成定时信号，并根据采样开始时间变化标志改变参数。 （标号）（AA）SAR定时发生器; （BB）时间线数据传输; （CC）系统总线; （DD）时间线数据存储器; （EE）模式时间线，包括逻辑发生器; （FF）定时信号发生器
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公开(公告)号：KR101259893B1
公开(公告)日：2013-05-02
申请号：KR1020120035299
申请日：2012-04-05
Applicant: 국방과학연구소
IPC: G01S13/89
Abstract: PURPOSE: An aircraft mounted image radar capable of the fluctuation process compensation on a real-time basis is provided to predict the future fluctuation level of the aircraft and to perform the directional angle control, the PRI(Pulse Repetition Interval) variable control, the RGD(Range Gate Delay) control, the range resampling process, and the phase compensation of an antenna. CONSTITUTION: An aircraft mounted image radar is comprised of the followings: a Chirp signal generator(100) which generates a base band Chirp signal of a broadband; a transmission device(200) which converts the base band Chirp signal into a RF radar signal and transmits through an antenna; a signal combiner(300) which synthesizes a received signal which is reflected by the RF radar signal through the antenna and the Chirp signal of the Chirp signal generator; a receiving device(400) which converts the synthesized signal of the signal combiner into the received signal of the base band; a base band processor(500) which process the phase compensation to the received signal of the base band which is converted from the receiving device; a SAR signal processor(600) which image-processes the received signal, which is phase compensation processed, of the base band processor and generating the image signal; a directional angle controlling unit(650) for controlling the directional angle of the antenna; and a control unit(700) for the phase compensation with the base band processor. The control unit receives the navigation information of a position, speed, and pasture of the aircraft from the inertial navigation system; receives the target location information and the plan aviation routing information of a region which will be photographed by a SAR sensor controller; receives the directional angle information of the antenna from the directional angle controlling unit; and controls an operation timing of the directional angle controlling unit, Chirp signal generator, transmission device, receiving device, and base band processor. [Reference numerals] (100) Chirp signal generator; (200) Transmission device; (250) Antenna; (400) Receiving device; (500) Base band processor; (600) SAR signal processor; (650) Directional angle controlling unit; (700) Directional angle controlling unit; (810) Inertial navigation system; (820) SAR sensor controller; (AA) Antenna directional angle information; (BB) Antenna directional command; (CC) Inertial navigation system location, speed, posture information; (DD) Planned flight path and target location information; (EE) Transmission device timing signal; (FF) Chirp timing signal; (GG) Deramping timing signal; (HH) Receiving device timing signal; (II) Sampling timing signal; (JJ) Phase correction value
Abstract translation: 目的：提供一种实时波动过程补偿的飞机安装图像雷达，用于预测飞机的未来波动水平，并执行方向角控制，PRI（脉冲重复间隔）变量控制，RGD （范围门限延迟）控制，范围重采样处理和天线的相位补偿。 构成：飞机安装的图像雷达由以下组成：啁啾信号发生器（100），其产生宽带的基带线性调频信号; 传输装置（200），其将基带Chirp信号转换成RF雷达信号并通过天线发射; 信号组合器（300），其通过天线合成由RF雷达信号反射的接收信号和啁啾信号发生器的线性调频信号; 接收装置（400），其将信号组合器的合成信号转换为基带的接收信号; 基带处理器（500），其对从接收装置转换的基带的接收信号进行相位补偿; 对基带处理器进行相位补偿处理的接收信号进行图像处理并产生图像信号的SAR信号处理器（600）; 用于控制天线的方向角的方向角度控制单元（650）; 以及用于与基带处理器进行相位补偿的控制单元（700）。 控制单元从惯性导航系统接收飞机的位置，速度和牧场的导航信息; 接收由SAR传感器控制器拍摄的区域的目标位置信息和计划航空路线信息; 从方向角度控制单元接收天线的方位角信息; 并控制方向角度控制单元，线性调频信号发生器，传输设备，接收设备和基带处理器的操作定时。 （100）线性调频信号发生器; （200）传动装置; （250）天线; （400）接收装置; （500）基带处理器; （600）SAR信号处理器; （650）定向角度控制单元; （700）定向角度控制单元; （810）惯性导航系统; （820）SAR传感器控制器; （AA）天线方位角信息; （BB）天线方向指令; （CC）惯性导航系统位置，速度，姿势信息; （DD）计划飞行路线和目标位置信息; （EE）传输设备定时信号; （FF）啁啾定时信号; （GG）递减定时信号; （HH）接收设备定时信号; （II）采样定时信号; （JJ）相位校正值
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