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1.发明授权
公开(公告)号：KR100861318B1
公开(公告)日：2008-10-01
申请号：KR1020070086075
申请日：2007-08-27
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H03H21/00
CPC classification number: H03H21/00 , H03H17/02 , H03H17/0227 , H03H21/0012 , H03H21/0025
Abstract: An adaptive filter and method for detecting an optimum spectrum, and a spectrum detection apparatus using the same and a method thereof are provided to detect a spectrum by using an adaptive filter for reducing a noise under a time variable environment. An adaptive filter for detecting an optimum spectrum includes a data vector calculation unit(11), a coefficient vector calculation unit(12), an average calculation unit(13), and a convolutional calculation unit(14). The data vector calculation unit calculates a data vector of p-dimension from an input signal based on a degree of a predetermined adaptive filter. The coefficient vector calculation unit calculates a coefficient vector based on the data vector calculated by the data vector calculation unit. The average calculation unit calculates an average of the coefficient vector calculated by the coefficient vector calculation unit. The convolutional calculation unit calculates a convolution of the input signal and the average of the coefficient vector calculated by the average calculation unit.
Abstract translation: 提供了一种用于检测最佳频谱的自适应滤波器和方法，以及使用该频谱检测装置的频谱检测装置及其方法，用于通过使用用于在时间可变环境下降低噪声的自适应滤波器来检测频谱。 用于检测最佳频谱的自适应滤波器包括数据矢量计算单元（11），系数矢量计算单元（12），平均计算单元（13）和卷积计算单元（14）。 数据矢量计算单元基于预定的自适应滤波器的程度从输入信号计算p维的数据矢量。 系数向量计算单元基于由数据矢量计算单元计算的数据矢量来计算系数矢量。 平均计算单元计算由系数向量计算单元计算的系数向量的平均值。 卷积计算单元计算输入信号的卷积和由平均计算单元计算的系数矢量的平均值。
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公开(公告)号：KR101741260B1
公开(公告)日：2017-05-29
申请号：KR1020100118559
申请日：2010-11-26
Applicant: 한국전자통신연구원
CPC classification number: H04L27/0006
Abstract: 본발명은인지무선통신에있어서, 스펙트럼센싱부에유입된데이터송신신호를제거하는방법에관한것으로서, 데이터송신부가송신하는데이터송신신호에대하여위상을반전시킨제1 신호를생성하는단계, 제1 신호의경로(phase) 및/또는크기(amplitude)를조정하는단계및 데이터송신신호가데이터수신부를통해유입된제2 신호를제1 신호와상쇄시키는단계를포함하고, 본발명에의하면, 인지무선통신시스템에있어서데이터송수신장치와스펙트럼센싱장치가별도의안테나를각각사용하는경우뿐만아니라, 데이터송수신안테나와센싱안테나를하나의안테나로통합하여사용하는경우에도, 데이터송수신장치와스펙트럼센싱장치사이의아이솔레이션을증대시킬수 있다.
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公开(公告)号：KR1020140057921A
公开(公告)日：2014-05-14
申请号：KR1020120124288
申请日：2012-11-05
Applicant: 한국전자통신연구원
IPC: H04L25/02
CPC classification number: H03M7/46 , H03M7/3062
Abstract: The present invention relates to an apparatus and a method for compressing a signal in dynamic compressive sensing, wherein the apparatus comprises a signal inputting part for outputting an input signal, and, concurrently, generating and outputting a linear measurement reference signal based on the input signal; a linear deforming part for receiving the linear measurement reference signal and variably generating a linear measurement matrix value according to the linear measurement reference signal; a signal compressing part for outputting a compressed signal for the input signal based on the generated linear measurement matrix value; and a signal processing part for restoring the compressed signal and performing spectrum sensing on the input signal. The present invention uses sparsity information of the input signal, thereby enhancing signal compression efficiency in compressive sensing and signal restoration performance. Moreover, the present invention compresses a signal using a compression matrix appropriate for the sparsity information of the input signal, thereby enhancing the compression efficiency in the compressive sensing and improving the signal restoration performance.
Abstract translation: 本发明涉及一种用于压缩动态压缩感测中的信号的装置和方法，其中该装置包括用于输出输入信号的信号输入部分，并且同时基于输入信号产生和输出线性测量参考信号 ; 线性变形部分，用于接收线性测量参考信号，并根据线性测量参考信号可变地生成线性测量矩阵值; 信号压缩部分，用于基于所生成的线性测量矩阵值输出用于输入信号的压缩信号; 以及用于恢复压缩信号并对输入信号执行频谱感测的信号处理部分。 本发明使用输入信号的稀疏信息，从而提高压缩感测和信号恢复性能中的信号压缩效率。 此外，本发明使用适合于输入信号的稀疏信息的压缩矩阵来压缩信号，从而提高压缩感测中的压缩效率并提高信号恢复性能。
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公开(公告)号：KR1020120056645A
公开(公告)日：2012-06-04
申请号：KR1020100118278
申请日：2010-11-25
Applicant: 한국전자통신연구원
CPC classification number: H04W24/00
Abstract: PURPOSE: A multiple channel signal detection method and apparatus thereof are provided to effectively embody a system by reducing time and calculation rates which are necessary for detecting signals in multiple channels. CONSTITUTION: A transmission and reception apparatus(530) senses channels. A processor(510) technically contacts to the transmission and reception apparatus. The processor detects the signals based on interesting section sensing data. The processor is established in order to determine the nonexistence of a detection target signal in each channel which constructs interesting sections when the detection target signal is not detected.
Abstract translation: 目的：提供多信道信号检测方法及其装置，通过减少检测多个信道中的信号所必需的时间和计算速率来有效地体现系统。 构成：发送和接收装置（530）感测信道。 处理器（510）技术上与发送和接收装置接触。 处理器根据有趣的部分感测数据来检测信号。 建立处理器，以便在检测目标信号未被检测时，确定在每个通道中不存在检测目标信号，其构建感兴趣部分。
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公开(公告)号：KR1020130068644A
公开(公告)日：2013-06-26
申请号：KR1020110135944
申请日：2011-12-15
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A device for reducing noise in a DC power supply is provided to prevent an error occurrence due to a spur component in a spectrum sensing receiver, and to improve a signal to noise ratio of a transceiver by removing a direct current noise of an SMPS(Switching Mode Power Supplier) by using a circuit for eliminating noise. CONSTITUTION: A device for reducing noise in DC power supply comprises a ferrit bead(41) removing after converting a noise included in a DC voltage inputted from an SMPS into heat; and a low frequency filter(43) removing a low frequency noise of the DC voltage by having an inductor and a capacitor.
Abstract translation: 目的：提供一种用于降低直流电源噪声的装置，以防止由于频谱感测接收机中的支线分量引起的错误发生，并通过消除SMPS的直流噪声来提高收发信机的信噪比 （开关电源供应商）通过使用消除噪声的电路。 构成：用于降低直流电源噪声的装置包括：将从SMPS输入的直流电压中包含的噪声转换成热量之后，去除铁氧体电极（41）; 和低频滤波器（43）通过具有电感器和电容器来去除直流电压的低频噪声。
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Patent Agency Ranking6.发明公开데이터 송수신기와 데이터 송수신용 안테나 및 센싱용 수신기와 센싱용 안테나의 공유 방법 및 무선 통신 시스템 有权无线通信系统和方法，用于共享感测天线，感应接收机和数据天线，数据发射机接收机
公开(公告)号：KR1020110060195A
公开(公告)日：2011-06-08
申请号：KR1020090116711
申请日：2009-11-30
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A data transceiver, a data transceiving antenna, a sharing method between a sensing receiver and a sensing antenna, and a wireless communication system are provided to improve the use efficiency of the transceiver and the antenna through smooth sharing of each transceiver and antenna. CONSTITUTION: In case a current time section is a data transceiving section, a data transceiver transmits and receives data(410,420). In case the time section is a QP(Quiet Period), the data transceiver receives inband sensing data with a sensing receiver(430,440). In case the time section is not the QP, a data signal processor confirms a separate sensing schedule(450). In case there is the sensing schedule, the data transceiver receives sensing data(460).
Abstract translation: 目的：提供数据收发器，数据收发天线，感测接收机和感应天线之间的共享方法以及无线通信系统，以通过平滑共享每个收发器和天线来提高收发器和天线的使用效率。 规定：如果当前时间段是数据收发部分，则数据收发器发送和接收数据（410,420）。 在时间段是QP（静音周期）的情况下，数据收发器用感测接收器接收带内感测数据（430,440）。 在时间部分不是QP的情况下，数据信号处理器确认单独的感测时间表（450）。 在存在传感调度的情况下，数据收发器接收感测数据（460）。
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公开(公告)号：KR1020090028392A
公开(公告)日：2009-03-18
申请号：KR1020080048543
申请日：2008-05-26
Applicant: 한국전자통신연구원
CPC classification number: H04L27/00 , H04L27/0006
Abstract: A method and an apparatus for detecting a signal with cyclo-stationary characteristics are provided to efficiently perform a spectrum sensing by reducing a complexity of calculation in detecting a signal with cyclo-stationary characteristics. An apparatus for detecting a signal calculates cyclo-stationary characteristics values on a cyclic frequency domain of input signals(S110), normalizes the calculated cyclo-stationary characteristics values(S120), multiplies the calculated cyclo-stationary characteristics values each other(S130), compares the result values of multiplication with a critical value(S140), determines that the signal exists in the input signals in case a result value is larger than the critical value(S150), and detects the signal from the input signals(S160).
Abstract translation: 提供一种用于检测具有环稳定特性的信号的方法和装置，以通过降低在检测具有环稳定特性的信号时的计算复杂度来有效地执行频谱感测。 用于检测信号的装置计算输入信号的循环频域上的环稳定特性值（S110），对所计算出的环稳定特性值进行归一化（S120），将计算出的环稳定特性值相乘（S130）， 将乘法结果值与临界值进行比较（S140），在结果值大于临界值（S150）的情况下，确定信号存在于输入信号中，并根据输入信号检测信号（S160）。
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公开(公告)号：KR1020090025123A
公开(公告)日：2009-03-10
申请号：KR1020070131028
申请日：2007-12-14
Applicant: 한국전자통신연구원
CPC classification number: H04W72/00 , H04W16/14 , H04W28/0231 , H04W28/24
Abstract: A channel set management method and a system thereof for a dynamic channel allocation which periodically manages idle channels in a recognition wireless communications system which dynamically assigns the frequency of channel are provided to select optimum mobile channel by providing information for determining suitable frequency. A channel estimator(230) predicts a channel condition and a channel environment about an idle channel based on the channel information obtained through the spectrum sense and communications protocol. A reliability decision device(250) evaluates the reliability about the predictable result. A channel set administration(270) gives available rank to the idle channel based on the evaluated reliability.
Abstract translation: 提供用于动态分配信道频率的识别无线通信系统中周期性地管理空闲信道的信道集管理方法及其系统，以通过提供用于确定合适频率的信息来选择最佳移动信道。 信道估计器（230）基于通过频谱感知和通信协议获得的信道信息预测关于空闲信道的信道状况和信道环境。 可靠性决策装置（250）评估关于可预测结果的可靠性。 信道集管理（270）基于评估的可靠性给空闲信道提供等级。
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公开(公告)号：KR100824602B1
公开(公告)日：2008-04-24
申请号：KR1020070085011
申请日：2007-08-23
Applicant: 한국전자통신연구원
CPC classification number: H04L25/0202 , H04B17/391 , H04W16/14
Abstract: An apparatus and a method for predicting a channel status based on a cognitive radio communication are provided to reduce a time and a calculation quantity by providing a next status prediction scheme using an algorithm of an HMM(Hidden Markov Model) and a channel status record. An apparatus for predicting a channel status based on a cognitive radio communication includes an input unit(11), a parameter calculation unit(12), a likelihood calculation unit(13), and a channel prediction unit(14). The input unit receives previous information of a channel to be predicted. The parameter calculation unit calculates a model parameter for the probability of previous state information received through the input unit to be maximized. The likelihood calculation unit calculates a likelihood value for each state of channels based on the model parameter calculated in the parameter calculation unit. The channel prediction unit predicts a next state of a channel from the previous state of the channel having the maximum value of the likelihood value calculated in the likelihood calculation unit.
Abstract translation: 提供了一种用于基于认知无线电通信来预测信道状态的装置和方法，以通过使用HMM（隐马尔可夫模型）和信道状态记录的算法提供下一状态预测方案来减少时间和计算量。 一种用于基于认知无线电通信来预测信道状态的装置包括输入单元（11），参数计算单元（12），似然计算单元（13）和信道预测单元（14）。 输入单元接收要预测的信道的先前信息。 参数计算单元计算通过要被最大化的输入单元接收到的先前状态信息的概率的模型参数。 似然度计算单元基于在参数计算单元中计算的模型参数来计算每个通道状态的似然值。 信道预测单元从具有在似然度计算单元中计算的似然值的最大值的信道的先前状态预测信道的下一状态。
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