-
公开(公告)号：KR102235639B1
公开(公告)日：2021-04-05
申请号：KR1020150034483A
申请日：2015-03-12
Applicant: 한국전자통신연구원
CPC classification number: H04L25/03006 , H03M13/11 , H03M13/27 , H04L25/03203 , H04L25/40
Abstract: FTN 방식에 따라 전송되는 신호를 처리하는 데이터 송수신 장치가 제공된다. 데이터 송수신 장치는, 미리 설정된 기준에 의한 제1 차수를 갖는 제1 행렬과 싱글 대각행렬의 구조를 갖는 제2 행렬을 이용하여 전송 데이터를 LDPC 부호화하고, 정보 비트와 패리티 비트를 구분하여 각각 독립적으로 인터리빙 및 심볼 매핑을 수행하고, FTN 방식에 따른 전송 속도로 출력 신호를 가속하여 전송 데이터를 송신한다.
-
公开(公告)号：WO2013109075A1
公开(公告)日：2013-07-25
申请号：PCT/KR2013/000383
申请日：2013-01-18
Applicant: 한국전자통신연구원
IPC: H04B7/185
CPC classification number: H04B7/2643
Abstract: 복수의 물리 계층 프레임(PLframe) 단위로 이루어진 하나 이상의 슬라이스(slice)를 포함하는 하나 이상의 슈퍼 프레임을 생성하고, 각각의 슈퍼 프레임을 기설정된 위상 값으로 회전시켜 다중화 슈퍼 프레임(multiplexing super frame)을 생성하며, 다중화 슈퍼 프레임을 전송하는 데이터 프레임 다중화 전송 장치 및 방법을 제공한다.
Abstract translation: 提供了一种用于发送复用数据帧的装置和方法，其中：生成包括具有多个物理层帧（PLframe）单元的一个或多个片的一个或多个超帧; 每个超帧被旋转预设相位值以产生多路超帧; 并且发送多路复用的超帧。
-
公开(公告)号：KR102235639B1
公开(公告)日：2021-04-05
申请号：KR1020150034483
申请日：2015-03-12
Applicant: 한국전자통신연구원
Abstract: FTN 방식에따라전송되는신호를처리하는데이터송수신장치가제공된다. 데이터송수신장치는, 미리설정된기준에의한제1 차수를갖는제1 행렬과싱글대각행렬의구조를갖는제2 행렬을이용하여전송데이터를 LDPC 부호화하고, 정보비트와패리티비트를구분하여각각독립적으로인터리빙및 심볼매핑을수행하고, FTN 방식에따른전송속도로출력신호를가속하여전송데이터를송신한다.
-
公开(公告)号：KR101828104B1
公开(公告)日：2018-03-22
申请号：KR1020130105985
申请日：2013-09-04
Applicant: 한국전자통신연구원
CPC classification number: H03M1/662 , H03M1/0624 , H03M1/66
Abstract: 본발명의실시예는고속신호처리를위한 DAC 장치들사이의동기화방법과그 시스템에관한것이다. 다중 DAC 장치의동기화방법에있어서, MUX DAC 장치에클럭을입력하는단계; 클럭을제1 클럭과제2 클럭으로나누는단계; 제1 클럭과제2 클럭사이의위상차이를 D 플립플롭으로전달하는단계; 및위상차이를처리하여제1 클럭과제2 클럭을동기화하는단계를포함하는다중 DAC 장치의동기화방법이제공될수 있다.
Abstract translation: 本发明的一个实施例涉及用于高速信号处理的DAC器件之间的同步方法及其系统。 一种用于同步多个DAC器件的方法，包括：向MUX DAC器件输入时钟; 用第一个时钟任务2时钟划分一个时钟; 将第一时钟任务和第二时钟任务之间的相位差传送到D触发器; 并且处理相位差以同步第一时钟任务2时钟，可以提供同步多个DAC器件的方法。
-
公开(公告)号：KR1020170111168A
公开(公告)日：2017-10-12
申请号：KR1020160036070
申请日：2016-03-25
Applicant: 한국전자통신연구원
CPC classification number: H04B1/707 , H04B2001/70724
Abstract: 본발명은신호처리방법및 송신기및 수신기에관한것이다. 본발명에따르면, 주기시퀀스들을이용하여송신신호를비주기시퀀스형태로변환하는단계; 및상기비주기시퀀스형태로변환된송신신호를수신기로전송하는단계를포함하고, 상기수신기는, 상기비주기시퀀스형태로변환된송신신호로부터버스트를검출하는, 송신기가수행하는신호처리방법이제공된다.
Abstract translation: 信号处理方法和发射机和接收机技术领域本发明涉及信号处理方法和发射机和接收机。 根据本发明，提供了一种方法，包括：使用周期序列将发送信号转换为非周期性序列形式; 并且将转换为非周期序列形式的发送信号发送到接收器，其中接收器从被转换为非周期序列形式的发送信号中检测突发， 是的。
-
Patent Agency Ranking
公开(公告)号：KR1020140101269A
公开(公告)日：2014-08-19
申请号：KR1020130082894
申请日：2013-07-15
Applicant: 한국전자통신연구원
IPC: H04B7/185
CPC classification number: H04B7/18582 , H04B7/18593
Abstract: The present invention relates to a technique to enable an apparatus to operate in environments of a broad signal to noise ratio in satellite communications and broadcasting service, which may comprise a mapping unit which utilizes a selected constellation to modulate a forward error correction frame; a physical layer header processing unit which adds a physical layer header to the modulated forward error correction frame; a physical layer frame diffusing unit which diffuses a physical layer frame of the modulated forward error correction frame; and a physical layer scrambling unit which scrambles the added physical layer header and the diffused physical layer frame.
Abstract translation: 本发明涉及一种能够使设备在卫星通信和广播服务中具有广泛信噪比的环境中工作的技术，其可以包括利用所选择的星座来调制前向纠错帧的映射单元; 物理层报头处理单元，其将物理层报头添加到调制的前向纠错帧; 物理层帧扩散单元，其扩散调制的前向纠错帧的物理层帧; 以及物理层加扰单元，其加扰附加的物理层报头和扩散的物理层帧。
-
公开(公告)号：KR1020100073062A
公开(公告)日：2010-07-01
申请号：KR1020080131645
申请日：2008-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04L27/22 , H04L27/0014 , H04L2027/0067 , H04L1/004
Abstract: PURPOSE: A frequency error estimating device and a frequency error estimating method thereof are provided to easily estimate a frequency error by low power consumption. CONSTITUTION: A plurality of autocorrelators(141-144) calculates autocorrelation through values outputted from the first registers. The second registers store the calculated autocorrelation values. Phase difference calculation blocks(161-165) calculate phase difference between symbols adjacent from the values saved in the second registers. An adder(177) adds up the calculated phase differences. The adder calculates a frequency error.
Abstract translation: 目的：提供一种频率误差估计装置及其频率误差估计方法，以便通过低功耗容易地估计频率误差。 构成：多个自相关器（141-144）通过从第一寄存器输出的值来计算自相关。 第二个寄存器存储计算的自相关值。 相位差计算块（161-165）计算与保存在第二寄存器中的值相邻的符号之间的相位差。 加法器（177）将计算的相位差相加。 加法器计算频率误差。
-
公开(公告)号：KR1020100062894A
公开(公告)日：2010-06-10
申请号：KR1020090078691
申请日：2009-08-25
Applicant: 한국전자통신연구원
IPC: H04N7/015
CPC classification number: H04H40/90 , H04H20/74 , H04H2201/10 , H04N5/08
Abstract: PURPOSE: A receiving circuit of the satellite digital video broadcasting system is provided, which integrates the duplicated auto correlation calculation circuits into one circuit, thereby the complexity of circuit is lowered conspicuously. CONSTITUTION: A common auto correlation unit(120) multiplies the auto correlation coefficient to the synchronized receiving symbol. A frame synchronization unit(130) detects the SOF(Start Of Frame) from the self correlation by receiving symbol. The SOF is the synchronization word indicating the beginning of frame. A frequency synchronization unit(140) presumes the frequency error information from the self correlation by receiving symbol and the SOF. An SNR estimation unit(150) presumes the SNR(Signal to Noise Ratio) from the self correlation by receiving symbol and the SOF.
Abstract translation: 目的：提供卫星数字视频广播系统的接收电路，将重复的自相关计算电路集成到一个电路中，从而显着降低电路的复杂度。 构成：公共自相关单元（120）将自相关系数与同步接收符号相乘。 帧同步单元（130）通过接收符号从自相关检测SOF（帧起始）。 SOF是指示帧开始的同步字。 频率同步单元（140）通过接收符号和SOF来假设来自自相关的频率误差信息。 SNR估计单元（150）通过接收符号和SOF来假设来自自相关的SNR（信噪比）。
-
公开(公告)号：KR1020090064290A
公开(公告)日：2009-06-18
申请号：KR1020080093769
申请日：2008-09-24
Applicant: 한국전자통신연구원
CPC classification number: H04L1/08 , H03M13/005 , H03M13/2771 , H04L1/0041 , H04L1/0076
Abstract: An apparatus and a method for transmitting and receiving data packets repeatedly are provided to prevent signal attenuation and a fading phenomenon in a high speed mobile environment by additionally transmitting a parity bit with different punching pattern repeatedly and channel-encoding and transmitting the same information bit stream repeatedly. A dual data generator(200) redundantly produces the same information stream every information bit stream to be transmitted. A dual channel encoder(202) divides redundantly produced information bit streams into a plurality of information bits. The dual channel encoder generates the coded data packet including a plurality of parity bits according to different punching patterns for divided information bit. A dual interleaver(204) interleaves the coded data packets generated in the dual channel encoder. A transmitter(205) successively transmits the generated coded data packets.
Abstract translation: 提供重复发送和接收数据分组的装置和方法，通过重复发送具有不同冲压模式的奇偶校验位和信道编码并发送相同的信息比特流来防止高速移动环境中的信号衰减和衰落现象 反复。 双数据生成器（200）冗余地产生要发送的每个信息比特流的相同信息流。 双通道编码器（202）将冗余产生的信息比特流分成多个信息比特。 双通道编码器根据用于划分的信息位的不同冲压模式生成包括多个奇偶校验位的编码数据分组。 双交织器（204）交织在双信道编码器中生成的编码数据分组。 发射机（205）连续发送所生成的编码数据分组。
-
公开(公告)号：KR1020080051032A
公开(公告)日：2008-06-10
申请号：KR1020070100600
申请日：2007-10-05
Applicant: 한국전자통신연구원
CPC classification number: H04L7/042 , H04L7/046 , H04L27/0014 , H04L2027/003
Abstract: A method and an apparatus of acquiring synchronization of a system are provided to decrease an initial synchronization time by performing a frequency synchronization and a frame synchronization at the same time. A synchronization apparatus of a communication system having a frame with a header of a fixed length includes a differential correlator(210), a frequency difference calculator(220), and a frame synchronization determiner(230). The differential correlator performs a differential calculation based on an input signal and a contracted value. A symbol timing is synchronized in the input signal. The contracted value is determined between the differential correlator and a sender. The frequency difference calculator compensates for a frequency error in the input signal based on a result from the differential correlator and a frequency compensation control signal. The frame synchronization determiner compares the result with a threshold value and outputs the frequency compensation control signal based on the compared result.
Abstract translation: 提供一种获取系统同步的方法和装置，以通过同时执行频率同步和帧同步来减少初始同步时间。 具有具有固定长度的报头的帧的通信系统的同步装置包括差分相关器（210），频率差计算器（220）和帧同步确定器（230）。 差分相关器基于输入信号和收缩值执行差分计算。 符号定时在输入信号中同步。 收缩值在差分相关器和发送器之间确定。 频差计算器基于差分相关器的结果和频率补偿控制信号来补偿输入信号中的频率误差。 帧同步确定器将结果与阈值进行比较，并根据比较结果输出频率补偿控制信号。
-
-
-
-
-
-
-
-
-
Search Results
75
records
(took 0.024 seconds)
