-
-
公开(公告)号：KR101719826B1
公开(公告)日：2017-03-27
申请号：KR1020110125088
申请日：2011-11-28
Applicant: 한국전자통신연구원
CPC classification number: H04B7/18519
Abstract: 위성중계기로부터하나이상의위성서비스신호를수신하는수신부, 상기하나이상의위성서비스신호의주파수, 대역폭및 크기를측정하는측정부, 상기측정결과를기반으로, 상기하나이상의위성서비스신호를기설정된기준값과비교하여위성서비스서버의이상유무를판단하는제어부및 상기위성서비스서버의이상이발생한것으로판단된경우, 운영자단말기로이상위성서비스서버를알리는경보를발령하는통신부를포함하는통신위성감시장치를제공한다.
-
公开(公告)号：KR1020140041074A
公开(公告)日：2014-04-04
申请号：KR1020120107994
申请日：2012-09-27
Applicant: 한국전자통신연구원
CPC classification number: H04W24/02 , H04B7/18513 , H04B7/18523 , H04B7/18582 , Y02D70/446
Abstract: Provided are an apparatus and method for managing a satellite service resource, capable of measuring one or more satellite service signals from one or more satellite service resources using a communication system monitoring unit, transmitting the measured signals to a service resource managing unit, analyzing the frequency and output of one or more satellite service resources using the service resource managing unit, calculating an allowance frequency and an allowance output value for one or more satellite service resources, comparing the allowance frequency and the allowance output value with each satellite service signal using the communication system monitoring unit, and transmitting a comparison result value to the service resource managing unit. [Reference numerals] (111) Service resource managing unit,; (112) Communication system monitoring unit
Abstract translation: 提供了一种用于管理卫星服务资源的装置和方法，能够使用通信系统监视单元从一个或多个卫星服务资源测量一个或多个卫星服务信号，将测量的信号发送到服务资源管理单元，分析频率 以及使用所述服务资源管理单元输出一个或多个卫星服务资源，计算一个或多个卫星服务资源的允许频率和允许输出值，使用所述通信将所述允许频率和允许输出值与每个卫星服务信号进行比较 系统监视单元，并将比较结果值发送到服务资源管理单元。 （111）服务资源管理单元 （112）通信系统监控单元
-
公开(公告)号：KR1020130059016A
公开(公告)日：2013-06-05
申请号：KR1020110125088
申请日：2011-11-28
Applicant: 한국전자통신연구원
CPC classification number: H04B7/18519 , H04B17/29 , H04B17/21 , H04B17/23 , H04B17/40
Abstract: PURPOSE: An unmanned communication satellite monitoring device and a method thereof are provided to automatically notify a selected satellite service server to an operator by selecting a satellite service server for a reference value. CONSTITUTION: Satellite service servers(111-113) transmit one or more satellite service signals. A satellite repeater(120) receives one or more satellite service signals. The satellite repeater transmits the received satellite service signals to the ground. A communication satellite monitoring device(130) monitors the satellite service servers by comparing one or more satellite service signals with the reference value. [Reference numerals] (130) Communication satellite monitoring device
Abstract translation: 目的：提供一种无人通信卫星监控装置及其方法，通过选择卫星服务服务器作为参考值，自动将选定的卫星业务服务器通知给运营商。 规定：卫星业务服务器（111-113）发送一个或多个卫星业务信号。 卫星中继器（120）接收一个或多个卫星服务信号。 卫星中继器将接收的卫星业务信号发送到地面。 通信卫星监控设备（130）通过将一个或多个卫星服务信号与参考值进行比较来监视卫星业务服务器。 （附图标记）（130）通信卫星监控装置
-
Patent Agency Ranking
公开(公告)号：KR1020120052715A
公开(公告)日：2012-05-24
申请号：KR1020100113995
申请日：2010-11-16
Applicant: 한국전자통신연구원
CPC classification number: H04B7/18519
Abstract: PURPOSE: A satellite performance monitoring system and method thereof are provided to compensate frequency response features for satellite repeaters by using variation rates of signals according to weather conditions. CONSTITUTION: A satellite communication control unit(100A) transmits a reference signal and test signal to a satellite repeater(200). A satellite performance monitoring apparatus(100B) creates the test signals and the reference signal. The satellite performance monitoring apparatus creates frequency response features for the satellite repeater. The satellite performance monitoring apparatus calculates variation rates of the signals according to weather conditions. The satellite performance monitoring apparatus applies the calculated variation rates of the signals to the frequency response features.
Abstract translation: 目的：提供一种卫星性能监测系统及其方法，通过使用根据天气条件的信号变化率来补偿卫星中继器的频率响应特征。 构成：卫星通信控制单元（100A）将参考信号和测试信号发送到卫星中继器（200）。 卫星演奏监视装置（100B）产生测试信号和参考信号。 卫星演播监视装置为卫星中继器创建频率响应特征。 卫星演奏监视装置根据天气条件来计算信号的变化率。 卫星性能监视装置将计算的信号变化率应用于频率响应特征。
-
公开(公告)号：KR100497128B1
公开(公告)日：2005-06-29
申请号：KR1020010077599
申请日：2001-12-08
Applicant: 한국전자통신연구원
IPC: G01M15/00
CPC classification number: G07C5/0808 , G06F3/14 , G07C5/008
Abstract: 본 발명은 위성의 원격측정 기술을 응용한 차량 성능의 진단 시스템 및 그 방법에 관한 것이다. 이를 위하여 본 발명은 차량의 각 기관 및 부품의 상태 정보에 대해 실시간 전송되는 원격측정 데이터를 수집하고, 이를 각 기관 및 부품의 고유 지정값과 비교하여 차량 성능의 이상 여부를 진단하고, 그 진단 결과를 모니터링 하는 진단 장치, 및 진단 장치의 차량 성능의 진단결과를 요청하는 외부 사용자와 통신망을 통해 실시간 통신하는 통신 장치를 포함한다. 따라서, 본 발명은 운전자나 외부 사용자가 쉽게 차량 성능의 이상 상태를 감지하고, 차량 고장에 대해 미리 대처할 수 있고, 차량 성능의 이상 부위를 정확히 파악할 수 있어 고장 수리가 보다 용이해질 수 있고, 또한, 운전자나 외부 사용자가 알고자하는 차량의 성능 상태를 지정하면 차량의 원격측정 데이터의 검색을 통해 해당하는 차량의 성능 상태를 알려주어 차량 성능의 신뢰도를 향상시킬 수 있으며, 통신망을 통해 차량 성능의 평가 및 진단 상태를 필요로 하는 사용자에게 정보를 제공할 수 있고, 차량의 부가적인 정보나 기타 서비스 정보를 제공받을 수 있는 효과를 제공하여 준다.
-
公开(公告)号：KR1020020054231A
公开(公告)日：2002-07-06
申请号：KR1020000083264
申请日：2000-12-27
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: G01S19/254 , H04W64/006
Abstract: PURPOSE: A method for compensating Doppler transition frequency in a non-geostationary satellite orbit mobile communication system is provided to reduce the complexity of a frequency synchronous circuit device required from a receiving mobile terminal and easily receive signals by performing accurate and prompt frequency synchronizing with electric calculation. CONSTITUTION: Initial input Doppler transition value is set up by using a pilot signal received from a satellite to adaptively compensate Doppler transition frequency generated by operation of a non-geostationary satellite(S510). Instantaneous satellite location parameter is input(S520). The distance between the satellite and a mobile communication terminal is estimated(S530). The location of the receiving mobile terminal is estimated by using the estimated Doppler transition frequency and the location of the satellite(S540). Instantaneous Doppler transition frequency is predicted by using the estimated location of the receiving mobile terminal(S550). A prediction error is compensated by applying appropriate weight to the predicted instantaneous Doppler transition frequency(S560).
Abstract translation: 目的：提供一种用于在非对地静止卫星轨道移动通信系统中补偿多普勒频移的方法，以减少从接收移动终端所需的频率同步电路装置的复杂性，并且通过与电气执行准确和及时的频率同步来容易地接收信号 计算。 构成：通过使用从卫星接收的导频信号来自适应地补偿由非对地静止卫星的操作产生的多普勒频移频率来建立初始输入多普勒跃迁值（S510）。 输入瞬时卫星定位参数（S520）。 估计卫星与移动通信终端之间的距离（S530）。 通过使用估计的多普勒频率和卫星的位置来估计接收移动终端的位置（S540）。 通过使用接收移动终端的估计位置预测瞬时多普勒频移（S550）。 通过对预测的瞬时多普勒频移应用适当的权重来补偿预测误差（S560）。
-
公开(公告)号：KR1020020030367A
公开(公告)日：2002-04-25
申请号：KR1020000060961
申请日：2000-10-17
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W74/006 , H04B7/18558 , H04W74/0833 , H04W84/06
Abstract: PURPOSE: A transmission method in a random access channel of a mobile communication system is provided to decrease a transmission delay time and enhance message receipt success probability in a mobile satellite communication system. CONSTITUTION: If a re-transmission period counter is less than the number of maximum re-transmission period(S505), an access process association parameter is updated as a recent value and a persistence check is performed(S507). A random number between 0 and 1 is generated(S508). If the generated value is larger than a persistence check probability(S509), a check is performed after waiting to a next frame(S510). If the generated value is less than or same to the persistence check probability, a power increase counter is initialized as 0(S511). The power increase counter is increased by 1(S512). If the power increase counter is less than the number of maximum power increase(S513), a possible signature is selected in a selected service class(S515) and a preamble and a message are transmitted(S516). A detection acknowledge signal corresponding to a signature used in the preamble through a preamble detection acknowledge channel while a detection acknowledge signal standby time elapses and a detection acknowledge signal receipt period elapses is received, and the received detection acknowledge signals are synthesized(S517,S518).
Abstract translation: 目的：提供移动通信系统的随机接入信道中的传输方法，以减少移动卫星通信系统中的传输延迟时间和增强消息接收成功概率。 构成：如果重传周期计数器小于最大重传周期数（S505），则将访问处理关联参数更新为最近的值，并执行持久性检查（S507）。 生成0到1之间的随机数（S508）。 如果生成值大于持久性检查概率（S509），则在等待下一帧之后进行检查（S510）。 如果生成值小于或等于持久性检查概率，则功率增加计数器被初始化为0（S511）。 功率增加计数器增加1（S512）。 如果功率增加计数器小于最大功率增加次数（S513），则在所选择的服务等级（S515）中选择可能的签名，并发送前导码和消息（S516）。 接收到检测确认信号，该检测确认信号通过前同步码检测确认信道在前同步码中使用的签名，而经过了检测确认信号待机时间并且检测到确认信号接收期间已经过去，并且接收到的检测确认信号被合成（S517，S518） 。
-
公开(公告)号：KR100327901B1
公开(公告)日：2002-03-09
申请号：KR1019990062428
申请日：1999-12-27
Applicant: 한국전자통신연구원
IPC: H04B1/7073
Abstract: 본발명은고속퓨리에변환(FFT : Fast Fourier Transform)을이용한복잡도가감소된도플러주파수천이보상방법에관한것이다. 이러한고속퓨리에변환을이용한도플러주파수천이보상방법은, 수신신호에대하여기저대역으로주파수천이한후, 대략적인도플러주파수천이를검출하고, 검출결과에따라기저대역수신신호의잔류반송파주파수를보상하는제 1 단계와; 상기대략적인도플러주파수천이검출과보상이된 신호에대하여고속퓨리에변환연산을수행하여이산주파수성분의전력분포를계산하는제 2 단계; 상기고속퓨리에변환연산결과로부터잔류반송파주파수오차를추정하는제 3 단계; 상기잔류반송파주파수오차추정결과에대하여저역통과여파기를사용하여잡음을감소시키는제 4 단계; 상기저역통과여파된결과에따라국부발진기의주파수를조절함으로써잔류반송파주파수오차를보상하고상기제 2 단계로진행하는제 5 단계; 및상기잔류반송파주파수오차보상시, 오류가발생할경우오류의종류에따라상기제 1 단계또는제 2 단계로부터반복수행하는제 6 단계를포함하는것을특징으로한다.
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.028 seconds)
