Patent ID: 8559491
Filing Date: 2013-10-15
Classification: G01S,H04B

Abstract:
1. A method for determining one or more parameters of an impulse response of a propagation channel involving emitters, reflectors or sensors that are fixed or mobile, and for detecting and for determining the position and kinematic parameters of the emitters and reflectors, in a system comprising N sensors configured to receive signals from said emitters or reflections from said reflectors, with N being an integer greater than or equal to 2, the method comprising: determining an ambiguity function based on coupling of a spatial analysis and a delay-distance/Doppler-kinematic analysis; determining at least one sufficient statistic Ĉ(l,m,K) corresponding to a correlation between a known signal s(kTe) corresponding to a complex envelope of an emitted signal that is subjected to a transformation associated with assumptions regarding the positions and kinematic parameters of the emitters, reflectors and sensors and regarding fluctuations of propagation, and an output of a space filter w(l,m), where l symbolizes a set of temporal assumptions reduced to a delay or a distance and m symbolizes a set of frequency assumptions reduced to a Doppler or a relative speed, wherein: for each delay assumption l and each Doppler assumption m: