ADAPTIVE TYPE PROCEDURE AND RADAR RECEIVER FOR THE SUPPRESSION OF PARASITE COMPONENTS OF THE DOPPLER SPECTRUM

Abstract

Abstract Translated from French L'INVENTION CONCERNE UN PROCEDE FONCTIONNANT DE FACON ADAPTIVE ET UN RECEPTEUR RADAR PERMETTANT LA SUPPRESSION DE COMPOSANTES PARASITES DU SPECTRE DOPPLER. SELON CE PROCEDE, LA SUPPRESSION DU PARASITAGE ET L'INTEGRATION COHERENTE SONT PERMUTEES, LES VALEURS D'ECHOS ETANT ENVOYEES D'ABORD A UN CIRCUIT (FOT) REALISANT UNE TRANSFORMATION DE FOURIER ET ENSUITE LA SUPPRESSION DES COMPOSANTES PARASITES EST REALISEE DANS LA PLAGE DES FREQUENCES DANS UN ENSEMBLE DE MULTIPLICATEURS ET D'ADDITIONNEURS (KMHU1, ...; KAU1A, ...: BTU1, ...: RAU1B, ...; KMU12, ...), ABOUTISSANT A UN DISPOSITIF (SMS) DETERMINANT LE CANAL CONTENANT DES SIGNAUX D'ECHOS DE CIBLES. APPLICATION NOTAMMENT AUX RADARS A SUPPRESSION AMELIOREE DES ECHOS PARASITES. THE INVENTION RELATES TO AN ADAPTIVE OPERATING PROCESS AND TO A RADAR RECEIVER ALLOWING THE SUPPRESSION OF PARASITIC COMPONENTS OF THE DOPPLER SPECTRUM. ACCORDING TO THIS PROCEDURE, THE REMOVAL OF PARASITATION AND CONSISTENT INTEGRATION ARE PERMUTED, THE ECHOS VALUES BEING SENT FIRST TO A CIRCUIT (FOT) PERFORMING A FOURIER TRANSFORMATION AND THEN THE REMOVAL OF THE PARASITE COMPONENTS IS ACHIEVED IN THE RANGE. FREQUENCIES IN A SET OF MULTIPLICATORS AND ADDITIONERS (KMHU1, ...; KAU1A, ...: BTU1, ...: RAU1B, ...; KMU12, ...), LEADING TO A DETERMINING DEVICE (SMS) THE CHANNEL CONTAINING TARGET ECHO SIGNALS. APPLICATION IN PARTICULAR TO RADARS WITH IMPROVED REMOVAL OF PARASITIC ECHOES.

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