Commissariat a L'energie Atomique Et Aux Energies Alternatives

David Demmer

Jean-Baptiste Dore

Benoît Miscopein

Patrick Rosson

The present disclosure concerns a method of estimation and correction, at the level of a base station, of a frequency drift (&#x394;F, &#x394;Fi, &#x394;FN) between signals transmitted by a plurality of antenna systems (___N) spatially distributed around a computing unit of the base station () and signals received by a radio device ().

Frequency drift compensation in a distributed multiple-input-multiple-output network

The present description concerns a method of processing by a radio transmitter/receiver () of a radio signal (SR) comprising a telecommunications signal disturbed by pulses of a radar signal, the method comprising the steps of: estimating the instantaneous power of the pulses, estimating the ratio of the average power of the telecommunications signal to the instantaneous power of the radar pulses, and modifying the radio signal at the locations of the radar pulses when said ratio is smaller than a threshold.

Processing method for a radio signal disturbed by a radar signal

A detection method for a MIMO system receiver in which a linear detection is carried out in order to provide an equalised vector. This equalised vector is represented in a reduced basis obtained from the reduction of the channel matrix. It undergoes an iterative noise cancellation process in the representation according to the reduced basis. Upon each iteration, a search is carried out for the component of the equalised vector in the reduced basis located the furthest from an area unperturbed by noise surrounding the product constellation with a tolerance margin, and the point representative of the equalised vector of this area by subtracting therefrom a noise vector in the direction of this component, the module whereof is equal to a fraction of the tolerance margin. The iterative cancellation converges when the equalised vector belongs to the area unperturbed by noise.

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Grenoble, France

David Demmer