公开(公告)号：US08655298B2

公开(公告)日：2014-02-18

申请号：US13627889

申请日：2012-09-26

Applicant: Thales

Inventor： Nicolas Martin ,  Franck Leteshi ,  Bruno Montagne

IPC: H04B1/10

CPC classification number: G01S19/21

Abstract: A technique for locating sources interfering on a signal received by a receiver comprising an array of antennas calculates a spatio-temporal intercorrelation matrix Rxx, subdivides the useful band of the signals into sub-bands (b), and for each sub-band (b), calculates the spatial intercorrelation matrix R(b) associated with the sub-band (b) and calculates at least one of its eigenvalues {λ1, λ2, . . . λM}. Interference in the sub-band is detected with the aid of the following detection criterion: log ⁡ ( ( ∑ m = k M ⁢ λ m ) ⁢ / ⁢ ( M - k + 1 ) ) - log ⁡ ( ∏ m = k M ⁢ λ m ) ⁢ / ⁢ ( M - k + 1 ) > threshold , and determining the eigenvectors {U1, U2, . . . UN} of the spatial intercorrelation matrix R(b), and determining the directions of arrival of the interfering sources by searching for the vectors of relative gains belonging to the said interference sub-space or which are orthogonal to the orthogonal noise sub-space and complementary to the interference sub-space.

Abstract translation: 用于定位干扰由包括天线阵列的接收机接收的信号的源的技术计算时空相关矩阵Rxx，将信号的有用频带细分为子带（b），并将每个子带（b ），计算与子带（b）相关联的空间相关矩阵R（b），并计算其特征值{λ1，λ2，...中的至少一个。 。 。 lambdaM}。 借助于以下检测标准检测子带中的干扰：log⁡（（Σm = k Mλm）/（M-k + 1））-log⁡（Πm = k M λm）/（M-k + 1）>阈值，并且确定特征向量{U1，U2，...， 。 。 UN}，并且通过搜索属于所述干扰子空间的或与正交噪声子空间正交的相对增益的向量来确定干扰源的到达方向，以及 与干扰子空间互补。