UWB 신호 추적 방법
    1.
    发明公开
    UWB 신호 추적 방법 无效
    基于新型相关函数的UWB信号跟踪方法

    公开(公告)号:KR1020130044043A

    公开(公告)日:2013-05-02

    申请号:KR1020110108299

    申请日:2011-10-21

    CPC classification number: H04B1/7183 H04B1/7085

    Abstract: PURPOSE: A method for tracing a UWB(Ultra-WideBand) signal is provided to analyze a generated surrounding peak and a generated problem because of the shape of a correlation function of the UWB signal and to solve the problem. CONSTITUTION: Synchronization of a UWB system is performed. A surrounding peak of a UWB correlation function is removed in a tracing process for the synchronization. The surrounding peak is removed based on a receiving signal and the change of a correlation value. A sharp autocorrelation function is obtained by removing values of the correlation function scattered around surrounding peaks. [Reference numerals] (AA) Tracing process

    Abstract translation: 目的:提供一种用于跟踪UWB(超宽带)信号的方法,用于分析由于UWB信号的相关函数的形状而产生的周围峰值和产生的问题,并解决问题。 构成:执行UWB系统的同步。 UWB相关函数的周围峰值在用于同步的跟踪过程中被去除。 基于接收信号和相关值的变化去除周围峰。 通过去除围绕周围峰值的相关函数的值获得明显的自相关函数。 (附图标记)(AA)追踪过程

    부호함수 기반 주파수 옵셋 추정 방법
    2.
    发明授权
    부호함수 기반 주파수 옵셋 추정 방법 有权
    基于符号函数的OFDM系统的频偏估计方法

    公开(公告)号:KR101259562B1

    公开(公告)日:2013-04-30

    申请号:KR1020110085107

    申请日:2011-08-25

    Abstract: 본 발명은 부호함수 기반 주파수 옵셋 추정 방법에 대하여 개시한다. 본 발명의 일면에 따른 주파수 옵셋 추정 방법은, 주파수 옵셋 추정 장치에 의한 주파수 옵셋 추정 방법으로서, 수신신호를 입력받으면, 상기 수신신호에 복소 부호함수를 취하는 단계; 상기 복소 부호함수를 취한 상기 수신신호의 각 샘플 간의 상관값을 산출하는 단계; 및 상기 상관값에 각도 연산을 수행하고, 상기 각도 연산의 결과에 기설정된 상수를 곱하여 상기 수신신호의 주파수 옵셋 추정치를 산출하는 단계를 포함하는 것을 특징으로 한다.

    부호함수 기반 주파수 옵셋 추정 방법
    3.
    发明公开
    부호함수 기반 주파수 옵셋 추정 방법 有权
    基于标志函数的OFDM系统的频偏估计方法

    公开(公告)号:KR1020130022526A

    公开(公告)日:2013-03-07

    申请号:KR1020110085107

    申请日:2011-08-25

    CPC classification number: H04L27/2659 H04L27/2675

    Abstract: PURPOSE: A signum function based frequency offset estimation method is provided to reliable estimation performance in various noise environments. CONSTITUTION: Receiving reception signal(S110), a complex sign signal(S120) is obtained from the reception signal. Correlation between samples is calculated using a correlation function(S130), a frequency offset estimation value(160) is calculated by performing angle calculation(S140) on the correlation. At this time, a predetermined constant is multiplied with the angle calculation result(S150). [Reference numerals] (S110) Reception signal; (S120) Sign signal; (S130) Correlation function; (S140) Angle calculation; (S160) Estimation value

    Abstract translation: 目的:提供一种基于信号功能的频偏估计方法,可在各种噪声环境下提供可靠的估计性能。 构成:从接收信号获得接收信号(S110),复合信号(S120)。 使用相关函数计算样本之间的相关性(S130),通过对相关性进行角度计算(S140)来计算频率偏移估计值(160)。 此时,将预定常数与角度计算结果相乘(S150)。 (参考号)(S110)接收信号; (S120)标志信号; (S130)相关函数; (S140)角度计算; (S160)估计值

    주파수 선택적 페이딩에 강인한 협력 전송 방법
    4.
    发明公开
    주파수 선택적 페이딩에 강인한 협력 전송 방법 无效
    合作传输方法对频率选择性衰减的鲁棒性

    公开(公告)号:KR1020130013984A

    公开(公告)日:2013-02-06

    申请号:KR1020110075962

    申请日:2011-07-29

    CPC classification number: H04B7/026 H04B7/15592

    Abstract: PURPOSE: A cooperative transmission method strong against frequency selective fading is provided to obtain a cooperative diversity gain through asynchronous cooperative communication in a frequency selective fading channel. CONSTITUTION: A source node(S) transmits a generated OFDM(Orthogonal Frequency Division Multiplexing) transmission symbol to relay nodes(R1,R2) respectively. Each relay node performs an amplification operation to the received symbol. A destination node(D) performs a cyclic prefix removal to the symbol received through each of the relay nodes. The destination node obtains an estimation value of combination symbols transmitted from the source node. The destination node demodulates actual data symbols through a recombination process by using the estimation value of the combination symbols.

    Abstract translation: 目的:提供一种针对频率选择性衰落的协作传输方法,通过频率选择性衰落信道中的异步协作通信获得协作分集增益。 构成:源节点(S)分别向中继节点(R1,R2)发送生成的OFDM(正交频分复用)传输符号。 每个中继节点对所接收的符号执行放大操作。 目的地节点(D)对通过每个中继节点接收的符号执行循环前缀去除。 目的地节点获得从源节点发送的组合符号的估计值。 目的地节点通过使用组合符号的估计值,通过重组处理解调实际数据符号。

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