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    一种基于载波标号调制的星座点映射方式可调的调制方法
    1.
    发明公开
    一种基于载波标号调制的星座点映射方式可调的调制方法 有权

    公开(公告)号：CN105049398A

    公开(公告)日：2015-11-11

    申请号：CN201510268283.2

    申请日：2015-05-24

    Applicant: 浙江大学

    Inventor： 张朝阳 ,  杨潇翔 ,  付攀玉 ,  张婧

    IPC: H04L27/34 ,  H04L27/26

    CPC classification number: H04L27/3483 ,  H04L27/2628 ,  H04L27/2678 ,  H04L2201/02

    Abstract: 本发明公开了一种基于载波标号调制的星座点映射方式可调的调制方法。发送端安装模式选择器和星座点映射选择器，接收端安装模式检测器和星座点映射方式检测器；原始消息序列在发送端进行分组，经发送端的模式选择器和星座点映射选择器根据活跃载波模式及其星座点调制方式进行信号调制，并发送；接收端的模式检测器和星座点映射检测器通过最大似然检测方法和最短距离检测方法解调出发送端调制过的活跃载波模式和星座点调制方式，进而恢复出原始消息序列。本发明每组选择的星座点映射方式取决于每组选取的活跃子载波模式，实现了在有限的发送功率下，尽可能提高传输效率和吞吐量。

    METHOD AND APPARATUS FOR POLAR RECEIVER WITH PHASE-AMPLITUDE ALIGNMENT
    2.
    发明申请
    METHOD AND APPARATUS FOR POLAR RECEIVER WITH PHASE-AMPLITUDE ALIGNMENT 审中-公开

    公开(公告)号：US20170085405A1

    公开(公告)日：2017-03-23

    申请号：US14863174

    申请日：2015-09-23

    Applicant: Innophase Inc.

    Inventor： Yang Xu ,  Sara Munoz Hermoso

    IPC: H04L27/227 ,  H04L27/34

    CPC classification number: H04L27/2272 ,  H04L27/3444 ,  H04L2201/02

    Abstract: Systems and methods are provided for aligning amplitude and phase signals in a polar receiver. A receiver generates digital amplitude and phase signals representing the amplitude and phase of a modulated input signal. At least one of the digital signals is filtered using a fractional delay filter with a variable delay. The delay of the fractional delay filter is adjusted to align the amplitude and phase signals. In some embodiments, an error vector magnitude is determined by comparing in-phase and quadrature values of the signal with values corresponding to a constellation point, and the delay is adjusted based on the error vector magnitude. The fractional delay filter may be a finite impulse response filter with coefficients stored in a lookup table that correspond to different delays.

    METHOD AND APPARATUS FOR POLAR RECEIVER WITH PHASE-AMPLITUDE ALIGNMENT
    6.
    发明申请
    METHOD AND APPARATUS FOR POLAR RECEIVER WITH PHASE-AMPLITUDE ALIGNMENT 审中-公开
    具有相位调整对准的极性接收器的方法和装置

    公开(公告)号：WO2017053827A1

    公开(公告)日：2017-03-30

    申请号：PCT/US2016/053484

    申请日：2016-09-23

    Applicant: INNOPHASE, INC.

    Inventor： XU, Yang ,  MUNOZ HERMOSO, Sara

    IPC: H04L27/227

    CPC classification number: H04L27/2272 ,  H04L27/3444 ,  H04L2201/02

    Abstract: Systems and methods are provided for aligning amplitude and phase signals in a polar receiver. A receiver generates digital amplitude and phase signals representing the amplitude and phase of a modulated input signal. At least one of the digital signals is filtered using a fractional delay filter with a variable delay. The delay of the fractional delay filter is adjusted to align the amplitude and phase signals. In some embodiments, an error vector magnitude is determined by comparing in-phase and quadrature values of the signal with values corresponding to a constellation point, and the delay is adjusted based on the error vector magnitude. The fractional delay filter may be a finite impulse response filter with coefficients stored in a lookup table that correspond to different delays.

    Abstract translation: 提供的系统和方法用于对准极化接收机中的幅度和相位信号。 接收器产生表示调制输入信号的振幅和相位的数字幅度和相位信号。 使用具有可变延迟的分数延迟滤波器来对数字信号中的至少一个进行滤波。 调整分数延迟滤波器的延迟以对齐幅度和相位信号。 在一些实施例中，通过将信号的相位和正交值与对应于星座点的值进行比较来确定误差矢量幅度，并且基于误差矢量幅度来调整延迟。 分数延迟滤波器可以是有限脉冲响应滤波器，其中系数存储在对应于不同延迟的查找表中。

    위상 편이 변조 심볼의 로그 우도 계산 방법
    7.
    发明公开
    위상 편이 변조 심볼의 로그 우도 계산 방법 无效
    用于生成相移键控符号的日志比特率的方法

    公开(公告)号：KR1020130066448A

    公开(公告)日：2013-06-20

    申请号：KR1020110133271

    申请日：2011-12-12

    Applicant: 한국전자통신연구원

    Inventor： 박기윤

    IPC: H04L27/18

    CPC classification number: H03M13/3927 ,  H04L27/18 ,  H04L2201/02

    Abstract: PURPOSE: A log likelihood calculation method of a PSK(Phase Shift Keying) symbol is provided to maximize a gain of a channel coding tool by reducing an approximation error and to increase transmission efficiency. CONSTITUTION: A reception modulation symbol receives a modulated symbol and extracts an in-phase component or an out-phase component(S100). The reception modulation symbol calculates a logarithmic likelihood with a modulated mapping symbol using a correlation having a least square error showing square of an error between a real value and an estimated value with respect to the extracted in-phase or out-phase component(S200). The reception modulation symbol is demodulated by using the calculated likelihood(S300). [Reference numerals] (AA) Start; (BB) Finish; (S100) Out-phase component; (S200) Extracted in-phase or out-phase component; (S300) Calculated likelihood

    Abstract translation: 目的：提供PSK（相移键控）符号的对数似然计算方法，以通过减少近似误差和增加传输效率来最大化信道编码工具的增益。 构成：接收调制符号接收调制符号并提取同相分量或异相分量（S100）。 接收调制符号使用具有相对于所提取的同相或异相分量的实际值和估计值之间的误差的平方误差的最小平方误差的相关来计算具有调制映射符号的对数似然度（S200） 。 通过使用计算出的可能性解调接收调制符号（S300）。 （附图标记）（AA）开始; （BB）完成; （S100）外相分量; （S200）提取的同相或异相组件; （S300）计算的可能性

    부반송파간 간섭 제거 방법 및 이를 이용한 수신 장치
    8.
    发明授权
    부반송파간 간섭 제거 방법 및 이를 이용한 수신 장치 失效
    低复杂均衡的方法减少由多普勒扩散引起的干扰因子干扰

    公开(公告)号：KR100809017B1

    公开(公告)日：2008-03-07

    申请号：KR1020060107674

    申请日：2006-11-02

    Applicant: 한국전자통신연구원

    Inventor： 장갑석 ,  김영훈 ,  방승찬 ,  한영남 ,  하정석

    IPC: H04B1/10

    CPC classification number: H04L25/0328 ,  H04L25/03949 ,  H04L27/2691 ,  H04L2201/02

    Abstract: A method for removing intercarrier interference and a receiving apparatus using the same are provided to remove the intercarrier interference by removing a time-varying sparse matrix component in a time domain, thereby reducing the amount of operation in comparison with a frequency domain. A method for removing intercarrier interference comprises the following steps of: extracting a protection section removal data vector by deleting a protection section for preventing intersymbol interference inserted into a transmitting signal; detecting a first restored time domain data vector, where the intercarrier interference is removed, by performing LCMMSE(Low Complexity Minimum Mean Squared Error) equalization with respect to the extracted protection section removal data vector(S100-S120); and extracting a second restored time domain data vector, where the intercarrier interference is removed, by performing DF-PIC(Decision Feedback Parallel Interference Cancellation) equalization with respect to the detected first stored time domain data vector(S130-S150).

    Abstract translation: 提供一种去除载波间干扰的方法和使用该方法的接收装置，通过去除时域中的时变稀疏矩阵分量来消除载波间干扰，从而与频域相比减少了操作量。 一种消除载波间干扰的方法，包括以下步骤：通过删除防止插入到发射信号中的符号间干扰的保护部分来提取保护部分去除数据向量; 通过对所提取的保护部分去除数据向量执行LCMMSE（低复杂度最小均方误差）均衡，来检测其中移除了载波间干扰的第一恢复时域数据向量（S100-S120）。 以及通过相对于检测到的第一存储的时域数据向量执行DF-PIC（判决反馈并行干扰消除）均衡，提取去除了载波间干扰的第二恢复时域数据向量（S130-S150）。

    공간 다중화 심볼 검출 방법
    9.
    发明公开
    공간 다중화 심볼 검출 방법 有权
    空间复合系统中符号检测方法

    公开(公告)号：KR1020080094323A

    公开(公告)日：2008-10-23

    申请号：KR1020070038601

    申请日：2007-04-20

    Applicant: 연세대학교 산학협력단

    Inventor： 황금찬 ,  황덕규

    IPC: H04L1/06

    CPC classification number: H04L1/06 ,  H04L1/203 ,  H04L2201/02 ,  H04L2201/04

    Abstract: A method for detecting a spatial multiplexing symbol is provided to decrease a calculation amount of a system by defining an arrangement criterion of a channel matrix by decomposing the channel matrix and arranging the channel matrix using the arrangement criterion. A measured channel matrix is expanded according to a variance of a noise to define an expanded channel matrix. An order arrangement criterion is defined by using the expanded channel matrix. The expanded channel matrix is arranged by using the order arrangement criterion, and sequence arrangement information is obtained. Actual power is allocated on a transmitter side by using the expanded channel matrix. The expanded channel matrix is arranged by using the order arrangement information. The expanded matrix is QR-decomposed, such that candidate transmission symbol is detected.

    Abstract translation: 提供了一种用于检测空间复用符号的方法，以通过使用该排列标准分解信道矩阵和排列信道矩阵来定义信道矩阵的排列标准来减少系统的计算量。 根据噪声的方差来扩展测量的信道矩阵以定义扩展的信道矩阵。 通过使用扩展的信道矩阵来定义订单排列标准。 通过使用顺序排列准则来布置扩展信道矩阵，并获得序列排列信息。 通过使用扩展的信道矩阵在发射机侧分配实际功率。 扩展信道矩阵通过使用顺序排列信息进行排列。 扩展矩阵被QR分解，使得检测到候选传输符号。

    채널 등화 장치
    10.
    发明公开
    채널 등화 장치 失效
    频道均衡器

    公开(公告)号：KR1020050073325A

    公开(公告)日：2005-07-13

    申请号：KR1020040001683

    申请日：2004-01-09

    Applicant: 엘지전자 주식회사

    Inventor： 서용학 ,  최인환 ,  김병길

    IPC: H04N7/015

    CPC classification number: H04L25/03286 ,  H04L2201/02

    Abstract: 본 발명은 콘쥬게이트 그레디언트(conjugate gradient) 알고리즘으로 데이터 구간에서도 채널을 추정하고, 이 채널 추정값을 기존의 8VSB 수신기에 사용되는 수정된 결정 궤환 등화기에 적용하여 등화를 수행하는 채널 등화 장치에 관한 것이다. 따라서, 기존의 최소 자승법을 이용한 채널 추정기와 달리

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