Thomson-Csf

Thomson Licensing S.a.

Michel Pecot

Philippe Tourtier

Bertrand Chupeau

Vincent Demoulin

Bruno Carrara

Jean-Louis Diascorn

Laurent Perdrieau

The radar system of the invention uses a digital television network to make a multistatic configuration. The transmitted signal is of the OFDM type. The receiver or receivers carry out a matched filtering operation and recover the synchronization by processing of zero-value Doppler gates.

Discreet radar detection method and system of implementation thereof

The present invention belongs to the field of transmission of a signal, using OFDM modulation (Orthogonal Frequency Division Multiplexing), from a transmitter to at least one receiver, via a transmission channel. The invention relates in particular to a device and a method for equalization of the received OFDM signal. Said equalization device is fitted into the reception system between a synchronization module and a module for binary decoding of the received signal, in which the receiver includes a recursive vector equalizer (10) capable of correcting the received signal in the time domain. According to the invention, the recursive vector equalizer (10) includes computation means (16; 22; 24; 40; 44; 46; 56) capable of estimating each transmitted symbol as a function of an estimate of the transmitted symbol which precedes the said transmitted symbol.

Device and method for vector equalization of an OFDM signal

An adaptive method for television image encoding by splitting the video image to be transmitted into sub-bands at the time of analysis filtering of the image encoder. These sub-bands are split into a tree-like structure by filtering and decimation. Local adaptive filtering is carried out in the analysis filters of each sub-band.

Adaptive method and device for sub-band analysis and synthesis

Television signal sub-band coder/decoder with different levels of

Method for hierarchical estimation of the movement in a sequence of

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Thorigne-Fouillard, France

Michel Pecot