专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明公开

KR1020100096279A 통신 시스템에서의 Ｉ/Ｑ 불균형 추정 및 교정 有权
标题翻译：通信系统中的I / Q不平等估计和校正
公开(公告)号：KR1020100096279A
公开(公告)日：2010-09-01
申请号：KR1020107017391
申请日：2008-06-16
申请人： 퀄컴 인코포레이티드
发明人： 이나노글루,하칸 , 메트레아우드,레온 , 월레스,마크에스. , 장,시앙동
IPC分类号： H04L27/38
CPC分类号： H04L27/0014 , H04L27/2626 , H04L27/2647 , H04L27/364 , H04L27/3863 , H04L2027/0016 , H04L2027/0022 , H04L2027/0024
摘要： 특정 양상들 및 실시예들은 복합 기저대역 신호의 동상(I) 및 직교 위상(Q) 성분들 사이에 불균형들의 정확한 측정 및 추정을 제공한다. I/Q 위상 불균형 추정들의 정확성은 로컬 루프백 접속부를 통해 접속되는 수신기 및 전송기상에서 추정들을 수행함으로써, 그리고 전송된 패킷들에서 교차-스펙트럼 간섭을 제거함으로써 향상될 수 있다. 일단 정확한 I/Q 위상 불균형들이 결정되면, 이들은 신호를 사용하여 통신의 성능 및 데이터 스루풋을 증가시키기 위하여 전송기 또는 수신기에 의하여 프로세싱되는 신호를 조정하는데 사용될 수 있다.

92. 发明公开

KR1020100064311A Ｉ/Ｑ 부정합 보상 장치 및 방법 有权
标题翻译：用于I / Q误差校准的装置和方法
公开(公告)号：KR1020100064311A
公开(公告)日：2010-06-14
申请号：KR1020090061163
申请日：2009-07-06
申请人： 한국전자통신연구원
发明人： 유현규 , 박문양 , 심재훈
IPC分类号： H04L27/38 , H04L27/22 , H04B1/16
CPC分类号： H04L27/3863 , H04B1/16
摘要： PURPOSE: An I/Q mismatching compensation apparatus and a method are provided to guarantee a generality about an arbitrary receiver using a continuous wave signal unrelated with a modulated signal. CONSTITUTION: A point of symmetry extracting unit(110) extracts an I/Q channel average trace of the continuous wave signal by receiving a continuous wave signal. An error extracting unit(120) extracts a distortion of the continuous wave signal from the I/Q channel average trace extracted from the point of symmetry extracting unit. A compensation unit(130) compensates a mismatching generated between an I channel signal and a Q channel signal of the continuous wave signal using the distortion of the continuous wave signal. The compensation unit normalizes the I/Q channel average trace to a circular.
摘要翻译：目的：提供I / Q不匹配补偿装置和方法，以保证使用与调制信号无关的连续波信号的任意接收机的通用性。构成：对称提取单元（110）通过接收连续波信号来提取连续波信号的I / Q通道平均迹线。误差提取单元（120）从对称提取单元提取的I / Q通道平均曲线提取连续波信号的失真。补偿单元（130）使用连续波信号的失真来补偿在I信道信号和连续波信号的Q信道信号之间产生的失配。补偿单元将I / Q通道平均轨迹归一化为圆形。

93. 发明公开

KR1020100050283A Ｉ신호와 Ｑ신호의 미스매치를 보상할 수 있는 수신기 및 이를 포함하는 통신시스템 有权
标题翻译：对I信号和Q信号及其通信系统进行补偿的接收机
公开(公告)号：KR1020100050283A
公开(公告)日：2010-05-13
申请号：KR1020080109502
申请日：2008-11-05
申请人： 삼성전자주식회사
发明人： 이규만 , 정진용 , 정기봉
IPC分类号： H04B1/06
CPC分类号： H04L27/3863
摘要： PURPOSE: A receiver capable of compensating mismatch of I-signal and Q-signal and a communication system thereof are provided to maintain the phase difference to the 90 degrees. CONSTITUTION: An ADC(Analog-Digital Converter)(18) analog-digital converts an I(In-phase) signal and Q(Quadruple-phase) signal and outputs the digital signal of I and Q signals. A mismatch compensator(21) presumes the mismatch of Q and I digital signals per each band and stores a digital compensation value for compensating the presumed mismatch. A demodulator(20) compensates the mismatch of I and Q digital signals based on the digital compensation value and performs the demodulation based on the compensation result.
摘要翻译：目的：提供能够补偿I信号和Q信号失配的接收机及其通信系统，以将相位差保持在90度。构成：ADC（模拟数字转换器）（18）模拟数字转换I（同相）信号和Q（四相）信号，并输出I和Q信号的数字信号。不匹配补偿器（21）假设每个频带的Q和I数字信号不匹配，并存储用于补偿推定的不匹配的数字补偿值。解调器（20）基于数字补偿值补偿I和Q数字信号的不匹配，并且基于补偿结果执行解调。

94. 发明公开

KR1020090118113A 비편향 트레이닝 시퀀스들을 사용한 직교 불균형 추정 失效
标题翻译：使用未经修改的培训序列的平均不平等估计
公开(公告)号：KR1020090118113A
公开(公告)日：2009-11-17
申请号：KR1020097021100
申请日：2008-03-07
申请人： 퀄컴 인코포레이티드
发明人： 크라비에,라비 , 솔리만,사미르,에스.
IPC分类号： H04L27/26
CPC分类号： H04L27/3863 , H04L25/022 , H04L27/2647
摘要： A system and method are provided for removing quadrature imbalance errors in received data. The method accepts an unbiased training sequence in a quadrature demodulation receiver. An unbiased training sequence has a uniform accumulated power evenly distributed in a complex plane, and includes predetermined reference signals (p) at frequency +f and predetermined mirror signals (pm) at frequency-f. The unbiased training sequence is processed, generating a sequence of processed symbols (y) at frequency +f, representing complex plane information in the unbiased training sequence. Each processed symbol (y) is multiplied by the mirror signal (pm), and an unbiased quadrature imbalance estimate Bm is obtained at frequency (-f). Using quadrature imbalance estimates, channel estimates, and processed symbols, an imbalance-corrected symbol can be generated.
摘要翻译：提供了一种用于消除接收数据中的正交不平衡误差的系统和方法。该方法在正交解调接收机中接受无偏差的训练序列。无偏差的训练序列具有均匀分布在复平面中的均匀累积功率，并且包括频率为+ f的预定参考信号（p）和频率为f的预定镜像信号（pm）。处理无偏差训练序列，以频率+ f生成经处理符号（y）的序列，表示无偏差训练序列中的复平面信息。每个被处理符号（y）乘以镜像信号（pm），并且以频率（-f）获得无偏差正交不平衡估计Bm。使用正交不平衡估计，信道估计和经处理的符号，可以产生不平衡校正的符号。

95. 发明公开

KR1020090045348A Ｉ／Ｑ 불평형 보상 有权
标题翻译： I / Q不平等补偿
公开(公告)号：KR1020090045348A
公开(公告)日：2009-05-07
申请号：KR1020097005504
申请日：2007-08-29
申请人： 어드밴스드 마이크로 디바이시즈, 인코포레이티드
发明人： 리얀 , 토우즈니아제딘
IPC分类号： H04L27/26 , H04J11/00
CPC分类号： H04L27/3863 , H04B1/30 , H04L27/2647 , H04L27/2089
摘要： 기저대역 신호에서의 I/Q 불평형을 예측하고 정정할 수 있는 ZIF 직접 변환 OFDM 수신기가 제공된다. 수신된 신호 r(t)에 관해 복잡도를 낮추는 변환이 수행된다. 수신된 신호 r(t)는 동위상 신호(I) 및 직교위상 신호(Q)로 나누어진다. I/Q 불평형이 로컬 오실레이터에 의해 도입되고, 그래서 I/Q 불평형은 진폭 불평형 인자( ) 및 위상 불평형 인자( )를 포함한다. I 신호 및 Q 신호는 증폭되고, 필터링되고 그리고 디지털화된다. 디지털화된 I 신호 및 Q 신호는 FFT(Fast Fourier Transform)를 통해 처리된다. I/Q 보상 알고리즘은, 시간 기대값 계산에 근거하여, 진폭 불평형 인자( ) 및 위상 불평형 인자( )의 값을 예측한다. 불평형 인자들이 기저대역 신호에 적용되어 관심 신호 x(t)가 복원된다. OFDM 수신기는 관심 신호 x(t)를 정보 디스플레이 디바이스에 출력한다.

96. 发明授权

KR100873876B1 직교 주파수 분할 다중 신호 수신 방법 및 이를 이용한직교 주파수 분할 다중 신호 수신 장치 失效
标题翻译：接收正交频分复用信号和正交频分多址信号的方法接收方法
公开(公告)号：KR100873876B1
公开(公告)日：2008-12-15
申请号：KR1020070065824
申请日：2007-06-29
申请人： 연세대학교 산학협력단
发明人： 김지호 , 정윤호 , 김재석
IPC分类号： H04L27/26
CPC分类号： H04L27/2662 , H04L5/0007 , H04L25/0212 , H04L25/0228 , H04L27/2657 , H04L27/3863
摘要： A method for receiving an orthogonal frequency division multiplexing signal and an orthogonal frequency division multiplexing signal receiving apparatus using the same are provided to perform an efficient communication by calculating an I/Q parameter in consideration of the response time synchronization error of a channel response. An OFDM signal receiving apparatus includes a channel estimation unit(100), an I/Q parameter calculation unit(110), a channel response compensation unit(120), and a data symbol compensation unit. The channel estimation unit estimates the channel response in a frequency domain based on the received training symbol. The I / Q parameter calculation unit calculates the I/Q parameter of the channel response in the frequency domain in consideration of the time synchronization error of the channel response. The channel response compensation unit compensates for the channel response in the frequency domain by using I/Q parameter. The data symbol compensation unit compensates for the received data symbol in the frequency domain by using the calculated I/Q parameter.
摘要翻译：提供一种用于接收正交频分复用信号的方法和使用其的正交频分多路复用信号接收装置，以便考虑到信道响应的响应时间同步误差来计算I / Q参数来执行有效的通信。 OFDM信号接收装置包括信道估计单元（100），I / Q参数计算单元（110），信道响应补偿单元（120）和数据符号补偿单元。信道估计单元基于接收到的训练符号来估计频域中的信道响应。考虑到信道响应的时间同步误差，I / Q参数计算单元计算频域中的信道响应的I / Q参数。信道响应补偿单元通过使用I / Q参数来补偿频域中的信道响应。数据符号补偿单元通过使用计算出的I / Q参数补偿频域中的接收数据符号。

97. 发明公开

KR1020080006447A 통신 장치, 직교 오차 보상의 설정치 계산 방법, 및 직교 오차 보상 프로그램이 기록된 컴퓨터 판독 가능 기록 매체 有权
标题翻译：通信设备，计算正交误差补偿设定值和正交误差补偿程序的方法
公开(公告)号：KR1020080006447A
公开(公告)日：2008-01-16
申请号：KR1020070043962
申请日：2007-05-07
申请人： 가부시끼가이샤 도시바
发明人： 야마구치게이이치 , 야마오카아츠시
IPC分类号： H04L27/34 , H04L27/36 , H04L27/38
CPC分类号： H04L27/0014 , H04L27/364 , H04L27/3863 , H04L2027/0016 , H04L2027/0022
摘要： A communication apparatus, a method of calculating a set value of orthogonal error compensation and an orthogonal error compensation program are provided to detect and compensate nonlinearity and error of an orthogonal modulator and an orthogonal demodulator, even though a feedback system adopts a structure of using a DPD(Digital Pre-Distorter) and an orthogonal error compensation circuit in common. A local signal generator generates a first local signal with a first phase and a second local signal with a second phase different from the first phase. An orthogonal modulator modulates an input signal into a modulation signal using the first local signal. A first compensator(402) compensates orthogonal modulation error generated in the orthogonal modulator. An orthogonal demodulator demodulates the modulation signal into a demodulation signal using the second local signal. A second compensator(404) compensates orthogonal demodulation error generated in the orthogonal demodulator. A compensation controller(405) calculates a first set value set in the first compensator and a second set value set in the second compensator, on the basis of phase difference between the first phase and the second phase, the input signal and the demodulation signal.
摘要翻译：提供通信装置，计算正交误差补偿的设定值的方法和正交误差补偿程序，以检测和补偿正交调制器和正交解调器的非线性和误差，即使反馈系统采用使用 DPD（数字预失真器）和正交误差补偿电路。本地信号发生器产生具有第一相位和第二本征信号的第一本地信号，第二相位与第一相位不同。正交调制器使用第一本地信号将输入信号调制成调制信号。第一补偿器（402）补偿在正交调制器中产生的正交调制误差。正交解调器使用第二本地信号将调制信号解调为解调信号。第二补偿器（404）补偿在正交解调器中产生的正交解调误差。补偿控制器（405）基于第一相位和第二相位之间的相位差，输入信号和解调信号来计算在第一补偿器中设定的第一设定值和设定在第二补偿器中的第二设定值。

98. 发明公开

KR1020070060941A 카테시안 피드백 루프를 이용한 초협대역 송신 시스템의이득 제어 장치 失效
标题翻译：使用优化CFL的直接转换发送系统
公开(公告)号：KR1020070060941A
公开(公告)日：2007-06-13
申请号：KR1020050121180
申请日：2005-12-09
申请人： 한국전자통신연구원
发明人： 강민수 , 정영준 , 유성진 , 정태진
IPC分类号： H04L27/20 , H04B1/04
CPC分类号： H04L27/20 , H04B1/0475 , H04B2001/0408 , H04L27/3427 , H04L27/3863 , H04L2027/0053
摘要： A gain controlling apparatus of an ultra narrow band transmission system using a CFL(Cartesian Feedback Loop) is provided to control transmission power without deterioration of stability of the CFL and to adjust phase and gain without being affected by transmission output frequency. A gain controlling apparatus of an ultra narrow band transmission system using a CFL includes a digital signal processing device(201), an I/Q(In phase/Quadrature phase) modulating device(21), I/Q error amplifying devices(202,203), a phase shifting device(204), I/Q variable attenuating devices(205,206), and a transmitting device(20). The digital signal processing device(201) outputs a base band transmission I/Q channel signal by processing transmission data, and controls a phase in the phase shifting device(204) according to the base band transmission I/Q channel signal modulated at the I/Q modulating device(21), and a size in the I/Q variable attenuating devices(205,206) and the I/Q modulating device(21). The I/Q modulating device(21) modulates a transmission high frequency signal, output at the transmitting device(20), to the base band transmission I/Q channel signal. The I/Q error amplifying devices(202,203) compare the base band transmission I/Q channel signal modulated at the I/Q modulating device(21) and the base band transmission I/Q channel signal outputted at the digital signal processing device(201), and amplify a distortion signal. The phase shifting device(204) inverts a phase of the distortion signal amplified at a base band area. The I/Q variable attenuating devices(205,206) adjust a size of distortion signal inverted at the phase shifting device(204). The transmitting device(20) modulates the base band transmission I/Q channel signal including the inverted and size-adjusted distortion signal to the transmission high frequency signal.
摘要翻译：提供使用CFL（笛卡尔反馈回路）的超窄带传输系统的增益控制装置，用于控制传输功率，而不会降低CFL的稳定性，并且在不受传输输出频率影响的情况下调整相位和增益。使用CFL的超窄带传输系统的增益控制装置包括数字信号处理装置（201），I / Q（同相/正交相位）调制装置（21），I / Q误差放大装置（202,203），相移装置（204），I / Q可变衰减装置（205,206）和发送装置（20）。数字信号处理装置（201）通过处理发送数据来输出基带发送I / Q信道信号，并且根据在I处调制的基带发送I / Q信道信号来控制移相装置（204）中的相位 / Q调制装置（21），以及I / Q可变衰减装置（205,206）和I / Q调制装置（21）的大小。 I / Q调制装置（21）将在发送装置（20）输出的发送高频信号调制为基带发送I / Q信道信号。 I / Q误差放大装置（202,203）将在I / Q调制装置（21）调制的基带发送I / Q信道信号与在数字信号处理装置（201）输出的基带发送I / Q信道信号进行比较），并放大失真信号。相移装置（204）使在基带区域放大的失真信号的相位反相。 I / Q可变衰减装置（205,206）调整在相移装置（204）处反相的失真信号的大小。发送装置（20）将包括反转大小调整失真信号的基带发送I / Q信道信号调制为发送高频信号。

99. 发明公开

KR1020070027965A 시분할 복신 시스템에서 아이/큐 부정합 보상 장치 및 방법 有权
标题翻译：用于TDD系统中I / Q不平衡的补偿装置和方法
公开(公告)号：KR1020070027965A
公开(公告)日：2007-03-12
申请号：KR1020050079963
申请日：2005-08-30
申请人： 삼성전자주식회사
发明人： 김병욱
IPC分类号： H04L27/26
CPC分类号： H04L27/2647 , H04L25/061 , H04L27/3863
摘要： An apparatus and a method for correcting I(In phase)/Q(Quadrature) mismatching in a time division duplex system are provided to correct the I/Q mismatching in real time by coupling a transmission signal, estimating and correcting the I/Q mismatching without using a test signal generator. An apparatus for correcting I/Q mismatching in a time division duplex system includes a detector(331), an FFT(Fast Fourier Transform) calculator(333), an I/Q mismatching estimator(337), a baseband converting unit, and a DC offset estimator(335). The detector(331) detects a transmission signal and provides the detected signal to a receiving path. The FFT calculator(333) performs a FFT for the coupled transmission signal. The I/Q mismatching estimator(337) estimates the I/Q mismatching based on a preamble of the transmission signal which is transformed by the FFT calculator(333). The detector(331) uses one of a coupler or a divider. The baseband conversion unit classifies the coupled transmission signal into an I-channel and a Q-channel, and performs an orthogonal downlink conversion. The baseband conversion unit converts the transmission signal into a baseband signal and provides the converted signal to the FFT calculator(333) and the DC offset estimator(335). The DC offset estimator(335) estimates a DC offset based on the baseband signal.
摘要翻译：提供了用于校正时分双工系统中的I（同相）/ Q（正交）失配的装置和方法，以通过耦合传输信号来实时校正I / Q失配，估计和校正I / Q不匹配不使用测试信号发生器。一种用于校正时分双工系统中的I / Q不匹配的装置，包括检测器（331），FFT（快速傅立叶变换）计算器（333），I / Q失配估计器（337），基带转换单元和 DC偏移估计器（335）。检测器（331）检测发送信号，并将检测到的信号提供给接收路径。 FFT计算器（333）对耦合的发送信号执行FFT。 I / Q失配估计器（337）基于由FFT计算器（333）变换的发送信号的前导码来估计I / Q失配。检测器（331）使用耦合器或分压器之一。基带转换单元将耦合的发送信号分类为I信道和Q信道，并执行正交的下行链路转换。基带转换单元将发送信号转换为基带信号，并将转换的信号提供给FFT计算器（333）和DC偏移估计器（335）。 DC偏移估计器（335）基于基带信号估计DC偏移。

100. 发明公开

KR1020060101509A 후검출 컨스텔레이션 보정을 위한 무선 통신 방법 및 장치 失效
标题翻译： 후검출컨컨텔션션션법법법법및및및및및및및및및및및및및
公开(公告)号：KR1020060101509A
公开(公告)日：2006-09-25
申请号：KR1020067010699
申请日：2004-11-05
申请人： 인터디지탈 테크날러지 코포레이션
发明人： 피에트라스키필립제이
IPC分类号： H04L5/12 , H04L5/02 , H04L7/02
CPC分类号： H04L27/3863 , H04L27/3809 , H04L27/3872
摘要： A method and apparatus for correcting the phase and gain of data associated with a constellation pattern of a plurality of received individual symbols. Each symbol is divided into real and imaginary symbol components. The signs of the real and imaginary symbol components of each symbol are determined and used as a basis for determining whether the symbol is associated with a first or third quadrant of the constellation pattern or a second or fourth quadrant of the constellation pattern. The absolute values of the real and imaginary symbol components are determined and used to create a first sum and a second sum. A phase adjustment value G and a gain adjustment value G are derived from the first and second sums, and are used to create a complex number. Each of the received individual symbols is multiplied by the created complex number to provide corrected constellation pattern data.
摘要翻译：一种用于校正与多个接收的单独符号的星座图案相关联的数据的相位和增益的方法和装置。每个符号被分成实和虚符号分量。确定每个符号的实和虚符号分量的符号并将其用作确定符号是否与星座图案的第一或第三象限或星座图案的第二或第四象限相关联的基础。实部和虚部符号分量的绝对值被确定并用于产生第一和和第二和。相位调整值G和增益调整值G从第一和第二和中导出，并用于创建复数。每个接收的个体符号乘以创建的复数，以提供校正的星座图案数据。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式