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公开(公告)号：KR1020020032194A
公开(公告)日：2002-05-03
申请号：KR1020000063214
申请日：2000-10-26
Applicant: 한국항공우주연구원
IPC: H04L7/04
Abstract: PURPOSE: A digital phase locked loop by a measurement of a phase error is disclosed to provide a reference time of an artificial satellite by compensating for an error and a noise of an IPPS signal from a GPS receiver. CONSTITUTION: The digital phase locked loop synchronizes a GPS 1PPS signal with a UTC. A phase error detector(21) calculates an error between a GPS 1PPS signal and internal 1Hz of a processor according to a reference signal. A software filter(22) reduces jitter amount of a compensated 1PPS signal which is provided to a DPLL based on the error calculated by the phase error detector(21) using a digital filter method. An error compensator(23) compensates for the 1PPS signal by the error compensated by the software filter(22) and provided the compensated IPPS signal to an input terminal of a DPLL.
Abstract translation: 目的：公开了通过相位误差测量的数字锁相环，通过补偿来自GPS接收机的IPPS信号的误差和噪声来提供人造卫星的参考时间。 构成：数字锁相环将GPS 1PPS信号与UTC同步。 相位误差检测器（21）根据参考信号计算处理器的GPS 1PPS信号和内部1Hz之间的误差。 软件滤波器（22）基于使用数字滤波器方法由相位误差检测器（21）计算出的误差来减少提供给DPLL的经补偿的1PPS信号的抖动量。 误差补偿器（23）通过由软件滤波器（22）补偿的误差来补偿1PPS信号，并将补偿的IPPS信号提供给DPLL的输入端。
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公开(公告)号：KR101346062B1
公开(公告)日：2013-12-31
申请号：KR1020130011313
申请日：2013-01-31
Applicant: 한국항공우주연구원
Abstract: The present invention relates to a rotational GPS electronic compass capable of accurately measuring a location using correction information provided from a ground base station by simply correcting reception errors using one GPS receiver and capable of confirming a direction through information measured by a receiver including the GPS receiver combined with a rotation unit. [Reference numerals] (AA) Calculation unit;(BB) Output unit
Abstract translation: 本发明涉及一种旋转GPS电子罗盘，其能够使用一个GPS接收机简单地校正接收错误，并且能够通过由包括GPS接收机的接收机测量的信息来确认方向，来精确地测量从地面基站提供的校正信息的位置 结合旋转单元。 （附图标记）（AA）计算单元;（BB）输出单元
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公开(公告)号：KR101224087B1
公开(公告)日：2013-01-21
申请号：KR1020110060953
申请日：2011-06-23
Applicant: 한국항공우주연구원
IPC: H04B1/16
CPC classification number: H04B1/18 , H03F2200/294
Abstract: PURPOSE: An RF(Radio Frequency) front end structure of a GPS(Global Positioning System)/ Galileo complex receiver is provided to receive diversity and simultaneously receive a combination of various signal bands. CONSTITUTION: A broadband LNA(Low Noise Amplifier)(110) amplifies low noise of a received navigation signal. Each unit receives an output signal of the broadband LNA. Each channel unit executes a switching, a filtering, and an amplifying process of a desired signal of the navigation signals. A control unit controls the switching, filtering, and amplifying process of the desired signal of the navigation in order to match the channel units with a band of the desired signal. [Reference numerals] (161) First downward modulation unit; (163) Second downward modulation unit; (181) First downward modulation post-processing unit; (183) Second downward modulation post-processing unit
Abstract translation: 目的：提供GPS（全球定位系统）/伽利略复合接收机的RF（射频）前端结构以接收分集并同时接收各种信号频带的组合。 构成：宽带LNA（低噪声放大器）（110）放大接收的导航信号的低噪声。 每个单元接收宽带LNA的输出信号。 每个通道单元执行导航信号的期望信号的切换，滤波和放大处理。 控制单元控制导航的期望信号的切换，滤波和放大处理，以便将信道单元与期望信号的频带相匹配。 （161）第一向下调制单元; （163）第二向下调制单元; （181）第一向下调制后处理单元; （183）第二向下调制后处理单元
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Patent Agency Ranking
公开(公告)号：KR1020120094263A
公开(公告)日：2012-08-24
申请号：KR1020110013647
申请日：2011-02-16
Applicant: 부산대학교 산학협력단 , 한국항공우주연구원
IPC: G01S19/36
Abstract: PURPOSE: A front end circuit is provided to eliminate noise characteristics due to a resistive feedback in the wideband low noise amplifier. CONSTITUTION: A front end circuit(10) comprises a wideband low noise amplifier(100), an output buffer(200), and an elastic wave filter(300). The wideband low noise amplifier receives a radio frequency signal. The wideband low noise amplifier drives in a plurality of frequency bands including a first frequency band and a second frequency band. The wideband low noise amplifier amplifies the radio frequency signal of the plurality of frequency bands and outputs an amplified signal. The output buffer provides output matching corresponding to the elastic wave filter. The output buffer receives the amplified signal from the wideband low noise amplifier and transfers the amplified signal to the elastic wave filter.
Abstract translation: 目的：提供前端电路，以消除由于宽带低噪声放大器中的电阻反馈引起的噪声特性。 构成：前端电路（10）包括宽带低噪声放大器（100），输出缓冲器（200）和弹性波滤波器（300）。 宽带低噪声放大器接收射频信号。 宽带低噪声放大器在包括第一频带和第二频带的多个频带中驱动。 宽带低噪声放大器放大多个频带的射频信号并输出放大的信号。 输出缓冲器提供与弹性波滤波器相对应的输出匹配。 输出缓冲器从宽带低噪声放大器接收放大的信号，并将放大的信号传送到弹性滤波器。
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公开(公告)号：KR100693315B1
公开(公告)日：2007-03-13
申请号：KR1020050129950
申请日：2005-12-26
Applicant: 한국항공우주연구원
IPC: G01R29/08
Abstract: A multipactor testing system and method using a phase detecting device in a continuous wave mode are provided to detect the multipactor generating time and exact RF(Radio Frequency) input power even in using a continuous wave as an RF signal source and to test a multipactor of all kinds of RF passive elements with low cost and simple structure. A multipactor testing system using a phase detecting device in a continuous wave mode is composed of a vacuum chamber(400) equipped with a test object(420); an RF signal generator for applying a continuous wave type RF signal to the test object from the outside of the vacuum chamber; an RF coupler electrically connected between the RF signal generator and the test object to extract an RF input signal applied from the RF signal generator and an RF reflected signal reflected from the test object; and an RF mixer detecting the phase difference between the RF input signal and the RF reflected signal by mixing the RF input signal and the RF reflected signal extracted by the RF coupler.
Abstract translation: 提供了一种使用连续波模式的相位检测装置的多重测试系统和方法，即使在使用连续波作为RF信号源的情况下，也能够检测多重器产生时间和准确的RF（射频）输入功率，并测试多重器 各种射频无源元件成本低，结构简单。 以连续波模式使用相位检测装置的多重测试系统由装备有测试对象（420）的真空室（400） RF信号发生器，用于从真空室的外部向测试对象施加连续波型RF信号; 射频耦合器，电连接在所述射频信号发生器和所述测试对象之间，以提取从所述射频信号发生器施加的射频输入信号和从所述测试对象反射的射频反射信号; 以及RF混频器，通过混合由RF耦合器提取的RF输入信号和RF反射信号来检测RF输入信号与RF反射信号之间的相位差。
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公开(公告)号：KR1020060072885A
公开(公告)日：2006-06-28
申请号：KR1020040111650
申请日：2004-12-24
Applicant: 한국항공우주연구원
Abstract: 본 발명은 인공위성 등과 같은 첨단 시스템에서 로컬 버스를 통해 대량의 데이터를 전송하고 데이터 수신 완료에 대한 사실을 한번만 확인하여 데이터 송수신에 소요되는 시간을 대폭 줄일 수 있는 통신 방법을 제공하는 것으로, 라이팅 시종신호, 소정의 모듈타입 신호 및 소정의 서브 어드레스신호를 다수의 입출력 보드들에게 전송하는 제 1 단계; 입출력 보드의 해당 서브 모듈이 제어 데이터를 보내라는 승낙신호를 상기 로컬 버스를 통해 보내옴에 따라, 입출력 라이팅신호를 전송하고 소정의 제어 데이터를 로컬 버스를 통해 연속적으로 입출력 보드의 해당 서브 모듈에게 전송한 후 라이팅 시종신호를 전송하는 제 2 단계; 제어명령이 모두 수신되면, 수신된 제어명령이 일정한 동작의 수행을 지시하는 것인지 또는 자신의 상태에 관한 데이터를 요구하는 것인지를 판단하는 제 3 단계; 제어명령이 일정한 동작을 지시하는 것이면, 수신된 제어명령이 지시하는 동작을 수행하는 제 4 단계; 및 제어명령이 상태에 관한 데이터를 요구하는 것이면, 자신의 상태 정보를 수집하고, 리딩 시종신호와 입출력 리딩신호를 로컬 버스를 통해 전송하여 입출력 리딩신호에 따라 수집한 상태 데이터를 연속적으로 입출력 컨트롤러에게 전송한 후 리딩 시종신호를 전송하는 제 5 단계를 포함한다.
로컬, 버스, 데이터, 제어, 통신-
公开(公告)号：KR100463908B1
公开(公告)日：2004-12-30
申请号：KR1020010084613
申请日：2001-12-26
Applicant: 한국항공우주연구원
IPC: B64G1/00
Abstract: PURPOSE: An artificial satellite separation signal output circuit for a high reliability artificial satellite is provided to improve the reliability in launching the artificial satellite or separating, and to minimize the failure rate by operating a backup computer stably against wrong operation of a main processor with detecting the stable separation signal. CONSTITUTION: An artificial satellite separation signal generating and detecting circuit is composed of a separation signal command circuit(10) applying a separation command signal to a separation signal generating circuit(30) in separating; the separation signal generating circuit detecting the separation signal from the separation signal command circuit and generating a pulse signal for driving a separation timer(40); the separation timer generating a time-out signal in not stopping the separation timer by a main processor(50); and a power switching relay(60) of the artificial satellite processor converting power from the main processor to an artificial satellite backup processor(51) in generating the time-out signal. The reliability is improved by operating the backup computer stably against wrong operation of the main processor.
Abstract translation: 目的：提供一种用于高可靠性人造卫星的人造卫星分离信号输出电路，用于提高启动人造卫星或分离的可靠性，并通过操作备用计算机来稳定地防止主处理器的错误操作并检测故障率以最小化故障率 稳定的分离信号。 一种人造卫星分离信号产生和检测电路，包括：分离信号指令电路（10），用于在分离时向分离信号产生电路（30）提供分离指令信号; 分离信号产生电路检测来自分离信号指令电路的分离信号并产生用于驱动分离计时器的脉冲信号; 分离计时器在主处理器（50）不停止分离定时器时产生超时信号; 和人造卫星处理器的功率开关继电器（60）在产生超时信号时将来自主处理器的功率转换成人造卫星备份处理器（51）。 通过对主处理器的错误操作稳定地操作备份计算机来提高可靠性。
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公开(公告)号：KR1020030054452A
公开(公告)日：2003-07-02
申请号：KR1020010084613
申请日：2001-12-26
Applicant: 한국항공우주연구원
IPC: B64G1/00
Abstract: PURPOSE: An artificial satellite separation signal output circuit for a high reliability artificial satellite is provided to improve the reliability in launching the artificial satellite or separating, and to minimize the failure rate by operating a backup computer stably against wrong operation of a main processor with detecting the stable separation signal. CONSTITUTION: An artificial satellite separation signal generating and detecting circuit is composed of a separation signal command circuit(10) applying a separation command signal to a separation signal generating circuit(30) in separating; the separation signal generating circuit detecting the separation signal from the separation signal command circuit and generating a pulse signal for driving a separation timer(40); the separation timer generating a time-out signal in not stopping the separation timer by a main processor(50); and a power switching relay(60) of the artificial satellite processor converting power from the main processor to an artificial satellite backup processor(51) in generating the time-out signal. The reliability is improved by operating the backup computer stably against wrong operation of the main processor.
Abstract translation: 目的：提供用于高可靠性人造卫星的人造卫星分离信号输出电路，以提高发射人造卫星或分离的可靠性，并通过稳定地操作备用计算机以防止主处理器的错误操作来最小化故障率 稳定的分离信号。 构成：人造卫星分离信号生成和检测电路由分离信号指令电路（10）组成，分离信号指令电路（10）将分离指令信号施加到分离信号发生电路（30）中; 分离信号发生电路检测来自分离信号指令电路的分离信号，并产生用于驱动分离定时器（40）的脉冲信号; 分离定时器在主处理器（50）不产生分离定时器的情况下产生超时信号; 以及人造卫星处理器的功率切换继电器（60），其将来自主处理器的功率转换成人造卫星备用处理器（51），以产生超时信号。 通过稳定地操作备用计算机以防止主处理器的错误操作来提高可靠性。
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