Airbus Ds Gmbh

Airbus Defence and Space Gmbh

Office National D'etudes Et De Recherches Aerospatiales

Mathieu Cattenoz

Francis Soualle

Philippe Brouard

Noise distribution shaping for signals, particularly for the application in receivers for CDMA signals. An embodiment provides a method for noise distribution shaping for signals comprising the acts of generating a blanking control signal by comparing a received signal comprising transitions with at least one blanking threshold, determining transitions of the received signal and zones around the determined transitions, and generating a transitions control signal comprising the determined transitions and zones, adapting the at least one blanking threshold or the received signal according to an offset value depending on the amplitude of the received signal and on the transitions control signal, and modifying the noise distribution of the received signal by applying blanking of the received signal under control of the blanking control signal.

Noise distribution shaping for signals, particularly spread spectrum signals like CDMA signals, with improved robustness

Noise distribution shaping for signals, particularly for the application in receivers for CDMA signals. A method for noise distribution shaping for signals comprises the acts of receiving a signal of interest from a signal transmitter, detecting whether the received signal of interest is present, and if the received signal of interest is present iteratively performing the following acts of adapting at least one blanking threshold or the received signal of interest according to an offset value depending on the amplitude of the received signal of interest, and generating a blanking control signal by comparing the received signal of interest with the at least one blanking threshold, modifying the noise distribution of the received signal of interest by applying blanking of the received signal of interest under control of the blanking control signal.

Noise distribution shaping for signals, particularly CDMA signals, with mitigation of artifact signals

A method is provided for noise distribution shaping of signals, particularly for the application in receivers for CDMA signals. The method includes the acts of generating a blanking control signal by comparing a received signal with at least one blanking threshold, adapting the at least one blanking threshold or the received signal according to an offset value depending on the amplitude of the received signal, and modifying the noise distribution of the received signal by applying blanking of the received signal under control of the blanking control signal.

Noise distribution shaping for signals, particularly CDMA signals

An apparatus comprising a blanker configured to provide a plurality of blanked signals, each blanked signal corresponding to a respective correlator channel signal of a plurality of correlator channel signals. The correlator channel signal is obtainable based on the respective blanked signal and a respective signal replica of a plurality of signal replicas, the signal replicas being shifted with respect to each other. The blanker is configured to obtain each blanked signal based on applying a respective thresholding scheme to a respective signal component of a plurality of signal components derived from a received spread-spectrum signal. The respective thresholding scheme is based on the respective signal component and the signal replica based on which the correlator channel signal corresponding to the respective blanked signal is obtainable. A receiver comprising such an apparatus is provided as is a method comprising providing a plurality of blanked signals.

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Gentilly, France

Mathieu Cattenoz