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公开(公告)号：KR1020110018216A
公开(公告)日：2011-02-23
申请号：KR1020090075901
申请日：2009-08-17
Applicant: 한국전자통신연구원
Abstract: PURPOSE: Signal acquiring apparatus and method in a global positioning system are provided to obtain satellite signals without an additional hardware by detecting the identifier of a satellite and calculating a code phase and Doppler. CONSTITUTION: A signal acquiring apparatus in a global positioning system includes a first calculating part(420) and a second calculating part(430). The first calculating part detects the identifier of a satellite from a signal from the satellite. A code phase and Doppler are calculated, and a time required for calculation is measured. A second calculating part corrects the code phase and the Doppler using the carrier frequency and the code frequency of the satellite and the calculated values of the first calculating part.
Abstract translation: 目的：提供全球定位系统中的信号采集装置和方法，通过检测卫星的标识符和计算码相位和多普勒来获得卫星信号，无需额外的硬件。 构成：全球定位系统中的信号获取装置包括第一计算部分（420）和第二计算部分（430）。 第一计算部分从卫星的信号中检测卫星的标识符。 计算码相位和多普勒频率，测量计算所需的时间。 第二计算部分使用载波频率和卫星的码频率和第一计算部分的计算值来校正码相位和多普勒。
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公开(公告)号：KR100887764B1
公开(公告)日：2009-03-12
申请号：KR1020070109009
申请日：2007-10-29
Applicant: 한국전자통신연구원
CPC classification number: H04L27/20 , H04L1/0042 , H04L25/03834
Abstract: A high speed digital transceiver and a transmitting and receiving method thereof are provided to increase a transmission channel capacity by using high order hierarchical modulation method. A high speed digital transmission device includes a header insertion unit(130), a hierarchical modulation mapping unit(140), and a transmission unit(170). A header insertion unit inserts the header into a first stream. The hierarchical modulation mapping unit modulates a first stream and a second stream hierarchically and generates the transmission stream. The transmission stream includes an I channel signal and a Q channel signal. The transmission unit transmits the transmission stream. The high order hierarchical modulation method includes a non-uniform 16 APSK(Amplitude Phase Shift Keying) method.
Abstract translation: 提供高速数字收发器及其发送和接收方法，以通过使用高阶分层调制方法来增加传输信道容量。 高速数字传输装置包括标题插入单元（130），分层调制映射单元（140）和传输单元（170）。 报头插入单元将报头插入第一个流。 分层调制映射单元分层调制第一流和第二流，并生成传输流。 传输流包括I信道信号和Q信道信号。 发送单元发送发送流。 高阶分层调制方法包括非均匀16 APSK（幅相移键控）方法。
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公开(公告)号：KR1020080052205A
公开(公告)日：2008-06-11
申请号：KR1020070049956
申请日：2007-05-22
Applicant: 한국전자통신연구원
IPC: H04N21/236 , H04N7/015 , H04L27/34
CPC classification number: H04N19/37 , H03M13/255 , H04H2201/11 , H04L27/2273 , H04N21/4382
Abstract: A digital broadcasting transmitting and receiving apparatus and a transmitting and receiving method therefor are provided to offer an inverse compatible function on the basis of a current system, improve transmission quality or increase transmission capacity. A first encoding unit(300) performs the first encoding of the first digital broadcasting data. A second encoding unit(310) performs the second encoding of the second digital broadcasting data. A hierarchical mapping unit(320) sets the first encoded signal as high order, sets the second encoded signal as low order, and maps the set signals to an IQ signal. A modulation unit(330) performs the orthogonal modulation of the hierarchical mapped IQ signal by a high order modulation type.
Abstract translation: 提供了一种数字广播发送和接收装置及其发送和接收方法，用于基于当前系统提供逆兼容功能，提高传输质量或增加传输容量。 第一编码单元（300）执行第一数字广播数据的第一编码。 第二编码单元（310）执行第二数字广播数据的第二编码。 分层映射单元（320）将第一编码信号设置为高阶，将第二编码信号设置为低阶，并将设置的信号映射到IQ信号。 调制单元（330）通过高阶调制类型执行分层映射IQ信号的正交调制。
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公开(公告)号：KR1020120051854A
公开(公告)日：2012-05-23
申请号：KR1020100113170
申请日：2010-11-15
Applicant: 한국전자통신연구원
IPC: G01S19/35
Abstract: PURPOSE: An apparatus and a method for non-coherent integration in a receiver of a global navigation satellite system are provided to perform capable of performing non-coherent integration and coherent integration in real time by considering code phase change according to the influence of a signal acquisition time and a doppler. CONSTITUTION: An apparatus for non-coherent integration in a receiver of a global navigation satellite system comprises a signal acquisition unit(110), a storing unit(120), a signal acquisition time measuring unit(130), a code phase compensating unit(140), and non-coherent integration unit(150). The signal acquisition unit performs a signal acquisition algorithm and obtains a signal acquisition result value of K and a signal acquisition result value of K+1. The storing unit stores the signal acquisition result value of the K and the signal acquisition result value of the K+1 in memory. The signal acquisition time measuring unit measures signal acquisition time necessary for obtaining the saved the signal acquisition result value of the K. The code phase compensating unit calculates the code phase shift amount of the signal acquisition result value of the K based on the measured signal acquisition time. The code phase compensating unit compensates for the signal acquisition result value of the K as much as the code phase shift amount. The non-coherent integration unit performs non-coherent integration the compensated signal acquisition result value of the K with the signal acquisition result value of the K+1.
Abstract translation: 目的：提供一种用于在全球导航卫星系统的接收机中进行非相干整合的装置和方法，以通过考虑根据信号的影响的码相位变化来执行能够实时执行非相干积分和相干积分 采集时间和多普勒。 构成：用于在全球导航卫星系统的接收机中非相干集成的装置包括信号获取单元（110），存储单元（120），信号采集时间测量单元（130），码相位补偿单元 140）和非相干整合单元（150）。 信号采集单元执行信号采集算法，获得K的信号采集结果值和K + 1的信号采集结果值。 存储单元将K的信号获取结果值和K + 1的信号获取结果值存储在存储器中。 信号获取时间测量单元测量获得K的信号获取结果值所需的信号获取时间。码相位补偿单元基于测量的信号采集计算K的信号获取结果值的码相位量 时间。 代码相位补偿单元补偿K的信号获取结果值与代码相移量一样多。 非相干积分单元用K + 1的信号采集结果值对K的补偿信号采集结果值进行非相干积分。
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公开(公告)号：KR1020110111225A
公开(公告)日：2011-10-10
申请号：KR1020100101913
申请日：2010-10-19
Applicant: 한국전자통신연구원
Abstract: 본 발명의 일실시예에 따른 위성항법시스템 수신기의 신호획득 장치는 디지털화된 위성 신호들을 코드 해상도에 기초하여 다운 샘플링 하고, 상기 다운 샘플링 된 위성 신호들과 오버 샘플링 된 PRN 코드들을 정합필터 크기에 기초하여 블록단위로 상관하며, 상기 정합필터에서 사용되는 블록 개수를 M 포인터로 하여 상기 상관 결과로 출력된 값을 고속 푸리에 변환한다. 또한, 상기 M 포인터 고속 푸리에 변환된 값에 기초하여 계산된 파워값을 임계값과 비교하여 상기 위성 신호들의 코드위상 및 대략적인(coarse) 도플러를 추정하고, 상기 위성 신호들을 획득하는데 성공하면, 제로패딩(zero padding)에 기초한 고속 푸리에 변환을 통하여 정밀(fine) 도플러를 추정한다.
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Patent Agency Ranking
公开(公告)号：KR1020110068129A
公开(公告)日：2011-06-22
申请号：KR1020090124972
申请日：2009-12-15
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A navigation system using neighboring navigation information and a method thereof are provided to improve TTFF(Time To First Fix) performance, the time required for calculating the current position from the power turned on. CONSTITUTION: A navigation system using neighboring navigation information comprises: a short-distance wireless communication module(350) receiving neighboring navigation information from a navigation system located on the circumference; a navigation module(310) obtaining navigation signals from a navigation satellite by utilizing the received neighboring navigation information, and processing the obtained navigation signals, thereby calculating the own position; a mobile communication module(330) receiving the mobile communication time information from a base station(200); and a code phase synchronous signal generation module(320) calculating code phase synchronous signals on the basis of the mobile communication time information and the measuring time of a measuring data, received from the neighboring navigation system, and transferring to the navigation module, wherein the navigation module obtains the navigation signals on the basis of the code phase synchronous signals and processes into the obtained navigation signals to calculate the down position.
Abstract translation: 目的：提供使用相邻导航信息的导航系统及其方法，以改善TTFF（Time to First Fix）时间性能，即从打开的电源计算当前位置所需的时间。 构成：使用相邻导航信息的导航系统包括：短距离无线通信模块（350），其从位于所述圆周的导航系统接收相邻的导航信息; 导航模块（310），通过利用所接收的相邻导航信息从导航卫星获取导航信号，并处理所获得的导航信号，由此计算其自身位置; 从基站（200）接收移动通信时间信息的移动通信模块（330）; 以及代码相位同步信号生成模块，根据来自相邻导航系统的移动通信时间信息和测量数据的测量时间，计算码相位同步信号，并传送给导航模块，其中， 导航模块基于代码相位同步信号获取导航信号，并将其处理成所获得的导航信号，以计算下降位置。
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公开(公告)号：KR1020110068128A
公开(公告)日：2011-06-22
申请号：KR1020090124971
申请日：2009-12-15
Applicant: 한국전자통신연구원
Abstract: PURPOSE: An apparatus and a method for acquiring signals and a method for setting the parameter of the apparatus are provided to reduce the processing amount of a correlation operation by controlling the frequency resolution of a signal acquired from a satellite navigation receiver. CONSTITUTION: A sampling module(110) samples a signal, received from a satellite, and a pre-set PRN code according to pre-set signal acquiring frequency. A correlation operator(120) implements a correlation operation with respect to the signal and the PRN code. A Fourier transformer(140) implements a Fourier transformation operation with respect to the frequency resolution of the correlation operated result according to a pre-set Fourier transformation point. A peak detector(170) detects the peak of an energy value based on the Fourier transformed result.
Abstract translation: 目的：提供用于获取信号的装置和方法以及用于设置装置的参数的方法，以通过控制从卫星导航接收机获取的信号的频率分辨率来减少相关操作的处理量。 构成：采样模块（110）根据预先设定的信号获取频率对从卫星接收的信号和预设PRN码进行采样。 相关运算符（120）对信号和PRN码进行相关运算。 傅里叶变换器（140）根据预设的傅立叶变换点对相关运算结果的频率分辨率进行傅立叶变换运算。 峰值检测器（170）基于傅里叶变换结果检测能量值的峰值。
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公开(公告)号：KR101001553B1
公开(公告)日：2010-12-17
申请号：KR1020080084751
申请日：2008-08-28
Applicant: 한국전자통신연구원
Abstract: 본 발명은 위성항법 수신기의 비트/프레임 동기 방법 및 그 장치를 개시한다.
본 발명은 입력 메시지와 프리엠블의 상관시 보다 효율적으로 상관하기 위해 메시지의 구조에 따른 프레임동기를 구성함으로써 성능을 개선시키고 수신기의 복잡성을 향상시킬 수 있다.-
公开(公告)号：KR1020100034627A
公开(公告)日：2010-04-01
申请号：KR1020080093855
申请日：2008-09-24
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A signal acquisition method and an apparatus of an GNSS receiver are provided to rapidly obtain a GPS signal by using FFT. CONSTITUTION: An acquiring method of a global positioning system comprises the following steps: storing a PRN code (S1010); controlling an input signal (S1020); performing FFT(S1030); performing IFFT (S1040); and searching a maximum value(S1050). In the PRN code storing step, the PRN code is processed by FFT and a result is stored. In controlling an input signal, the speed of the input signal is controlled.
Abstract translation: 目的：提供一种信号采集方法和GNSS接收机的装置，通过FFT快速获取GPS信号。 构成：全球定位系统的获取方法包括以下步骤：存储PRN码（S1010）; 控制输入信号（S1020）; 执行FFT（S1030）; 执行IFFT（S1040）; 并搜索最大值（S1050）。 在PRN码存储步骤中，通过FFT处理PRN码并存储结果。 在控制输入信号时，控制输入信号的速度。
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公开(公告)号：KR101623479B1
公开(公告)日：2016-05-24
申请号：KR1020100006580
申请日：2010-01-25
Applicant: 한국전자통신연구원
Abstract: 본발명은수신기클럭오프셋검출을통한신속한항법신호획득장치및 방법에관한것으로서, 항법수신기의클럭오프셋을산출하고, 산출된클럭오프셋을근거로항법수신기의불확실성을제거하여주파수검색범위를항법위성과항법수신기의움직임에의한도플러변이로인해발생된주파수검색영역으로축소시켜신속하게신호를획득할수 있는것을특징으로한다.
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