Abstract: A method for determining the position of a decoy using at least one receiver, the method includes a step for detecting a decoy attack, a step for correcting the clock bias delivered by the receiver based on an estimated drift (Dj) of the clock of the receiver. The method comprises a step for differential measurements using at least three corrected clock biases (CBjcorr(t?), CBkcorr(t?), CBlcorr(t?)) and a localization step for determining the position of the decoy.

Abstract: A method for locating at least one receiver in a positioning system. The system includes: at least two generators, each generator emitting, on a single carrier, at least two signals that each have a different code, and a receiver configured to detect the signals emitted by the generators. In the method: the receiver measures, for each generator, the phase difference between both signals emitted by the generator, and at least one geometric size, representing the position of the receiver in relation to the generators, is calculated on the basis of the measurements of the phase difference in order to locate the receiver in the positioning system.

Abstract: A method for locating at least one receiver within a positioning system, the system including: at least two transmitters, each transmitter emitting a signal including a carrier modulated by a code, and a receiver that is movable and configured to detect the signals, method in which: during the movement of the receiver from an estimated predefined initial position, consecutive measurements are taken of the phase of the carrier of the signal emitted by each transmitter, for various subsequent positions of the receiver, the variations in the phase of the carrier of the signals between each subsequent position of the receiver for which the phase was measured and the estimated initial position of the receiver is calculated for each transmitter, and these phase variations are used to calculate the variation in distance between the receiver and the transmitters, in order to determine the real initial position of the receiver.

Abstract: A method of reducing the glare of at least one receiver within a system, in particular a geolocation system, the system including: at least one first emitter emitting at least a first signal modulated by a first code, at least a second emitter emitting at least one second signal modulated by a second code, which is repetitive and potentially variable, and a third signal out of phase with respect to the second signal, the third signal being modulated by the second code delayed by a first delay, and the receiver, the latter being configured so as to detect signals emitted by the first and second emitters and implementing, for the tracking of the first signal, a local signal.

Abstract: A method of reducing the glare of at least one receiver within a system, in particular a geolocation system, the system including: at least one first emitter emitting at least a first signal modulated by a first code, at least a second emitter emitting at least one second signal modulated by a second code, which is repetitive and potentially variable, and a third signal out of phase with respect to the second signal, the third signal being modulated by the second code delayed by a first delay, and the receiver, the latter being configured so as to detect signals emitted by the first and second emitters and implementing, for the tracking of the first signal, a local signal.

Abstract: The present invention relates to a method of reducing the glare of at least one receiver within a positioning system, the system including a plurality of emitters, each emitter emitting signals modulated by one and the same code whose autocorrelation function exhibits a main peak and at least one white zone in which the autocorrelation function is a minimum, the signals for each emitter includes a first signal modulated by the code and a second signal out of phase with respect to the first signal, the second signal being modulated by the code which is delayed with respect to the code modulating the first signal, and a receiver, the latter being configured so as to detect signals emitted by the emitters and implementing, for the tracking of the first and second signal emitted by one of the emitters, a local signal modulated by the code.