Patent application number | Description | Published |
20080252526 | Multiparametric Direction Finding Method Comprising the Separation of the Incidence and Nuisance Parameters - Method of multi-parameter direction finding of several sources in an array of N sensors, comprising at least the following steps: a) choosing a parameter to be determined, or parameter of interest, b) expressing the direction vector in the form of a linear relation between the parameter of interest chosen and the secondary parameters b | 10-16-2008 |
20080266177 | High Resolution, Arbitrary-Even-Order Direction Finding Method and Device - Method of high-resolution direction finding to an arbitrary even order, 2q (q>2), for an array comprising N narrowband antennas each receiving the contribution from P sources characterized in that the algebraic properties of a matrix of cumulants of order 2q, C | 10-30-2008 |
20090073041 | 1D OR 2D GONIOMETRY METHOD OF DIFFUSE SOURCES - A goniometry method for one or several diffuse (or distributed) sources is disclosed. The sources or sources having one or more give directions and a diffusion cone. The sources are received by an array of several sensors. The method breaks down the diffusion cone into a finite number L of diffusers. A diffuser has the parameters (θ | 03-19-2009 |
20090220031 | METHOD FOR BLIND DEMODULATION AT HIGHER ORDERS OF SEVERAL LINEAR WAVEFORM TRANSMITTERS - Disclosed is a method of blind demodulation of signals arising from one or more transmitters, the signals including a mixture of symbols comprising at least one step of separating the transmitters by using the temporal independence of the symbol trains specific to a transmitter and the mutual independence of the transmitters. | 09-03-2009 |
20090305720 | METHOD FOR CHARACTERISING EMITTERS BY THE ASSOCIATION OF PARAMETERS RELATED TO THE SAME RADIO EMITTER - Method of using one or more transmitters and/or one or more parameters associated with a transmitter by using a reception station comprising a device suitable for measuring over time a set of K parameters dependent on the transmitters associated with vectors {circumflex over (η)} | 12-10-2009 |
20110025563 | METHOD FOR MEASURING INCOMING ANGLES OF COHERENT SOURCES USING SPACE SMOOTHING ON ANY SENSOR NETWORK - A method for interpolating steering vectors a(θ) of a sensor network, the sensor network receiving signals transmitted by a source, characterized in that, for the interpolation of the steering vectors a(θ), use is made of one or more omnidirectional modal functions z(θ) | 02-03-2011 |
20110140966 | METHOD OF MULTI-TRANSMITTER AND MULTI-PATH AOA-TDOA LOCATION COMPRISING A SUB-METHOD FOR SYNCHRONIZING AND EQUALIZING THE RECEIVING STATIONS - Method and system for locating one or more transmitters in the potential presence of obstacles in a network comprising a first receiving station A and a second receiving station B that is asynchronous with A. The method includes the identification of a reference transmitter through an estimation of its direction of arrival AOA-TDOA pair (θ | 06-16-2011 |
20120098703 | Method for Determining Azimuth and Elevation Angles of Arrival of Coherent Sources - A method for jointly determining the azimuth angle θ and the elevation angle Δ of the wave vectors of P waves in a system comprising an array of sensors, a number of waves out of the P waves being propagated along coherent or substantially coherent paths between a source and said sensors, includes at least the following steps: selecting a subset of sensors from said sensors to form a linear subarray of sensors; applying, to the signals from the chosen subarray, an algorithm according to a single dimension to decorrelate the sources of the P waves; determining a first component w of said wave vectors by applying, to the signals observed on the sensors of the chosen subarray, a goniometry algorithm according to the single dimension w; determining a second component u of said wave vectors by applying a goniometry algorithm according to the single dimension u to the signals from the entire array of sensors; determining θ and Δ from w and u. | 04-26-2012 |
20120122470 | METHOD FOR LOCATING MULTIPLE RAYS OF A SOURCE WITH OR WITHOUT AOA BY MULTI-CHANNEL ESTIMATION OF THE TDOA AND FDOA - A method and system for locating an emitter E transmitting a signal toward a receiver A comprising N radio frequency channels (N≧1), the characteristics of said signal being unknown to the receiver and said signal being reflected off P reflectors B | 05-17-2012 |