公开(公告)号：KR1020130034095A

公开(公告)日：2013-04-05

申请号：KR1020110097931

申请日：2011-09-28

Applicant: 한국전자통신연구원

Inventor： 정수엽 ,  오덕길 ,  강준혁

IPC: G01S5/02 ,  H04W64/00

Abstract: PURPOSE: An apparatus for estimating the DOA(Direction Of Arrival) and TOA(Time Of Arrival) of a mobile signal and a method thereof are provided to separate a received signal in order to reduce the complexity and to estimate the DOA and TOA of the mobile signal having low complexity using a pseudo-spectrum calculation which uses DFT(Discrete Fourier Transform). CONSTITUTION: A separating unit(210) separates a received signal into DOA vectors and TOA vectors. A correlation matrix calculation unit(220) calculates the correlation matrix of the DOA and the correlation matrix of the TOA. An Eigen Vector Decomposition(EVD)(230) receives the correlation matrix of the DOA and TOA and checks the number of paths through which the received signal is received. A spectrum calculation unit(240) calculates a pseudo-spectrum using DFT. A total calculation unit(250) calculates a TOA spectrum. A sensing unit(260) senses the discrete spatial frequency of the DOA when having a maximum DOA spectrum value and the discrete spatial frequency of the TOA having a maximum TOA spectrum value. A mapping unit(270) calculates the corresponding DOA and TOA. [Reference numerals] (210) Separating unit; (220) Correlation matrix calculation unit; (230) Eigenvector analysis unit; (240) Spectrum calculation unit; (260) Sensing unit; (270) Mapping unit;

Abstract translation: 目的：提供一种用于估计移动信号的DOA（到达方向）和TOA（到达时间）的装置及其方法，以分离接收的信号，以便降低复杂度并估计DOA和TOA 使用使用DFT（离散傅立叶变换）的伪频谱计算具有低复杂度的移动信号。 构成：分离单元（210）将接收到的信号分离成DOA向量和TOA向量。 相关矩阵计算单元（220）计算DOA的相关矩阵和TOA的相关矩阵。 特征向量分解（EVD）（230）接收DOA和TOA的相关矩阵，并检查接收到的信号的路径数。 频谱计算单元（240）使用DFT计算伪频谱。 总计算单元（250）计算TOA谱。 当具有最大DOA频谱值和具有最大TOA频谱值的TOA的离散空间频率时，感测单元（260）感测DOA的离散空间频率。 映射单元（270）计算相应的DOA和TOA。 （附图标记）（210）分离单元; （220）相关矩阵计算单元; （230）特征向量分析单元; （240）频谱计算单位; （260）感应单元; （270）映射单元;