Method of signal processing by correlation

A microwave source 2 and a transmitting aerial A are used to create microwave radiation 1 which is picked up by receiving aerials A1, A2 located at different places. The signals detected by the receiving aerials A1 and A2 are directed to a correlator 3. The frequency spectrum of the output signal fr...

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Bibliographische Detailangaben
1. Verfasser:	JEAN-CLAUDE VAN DE VELDE, YVES LEROY ET AHMED MAMOUNI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A microwave source 2 and a transmitting aerial A are used to create microwave radiation 1 which is picked up by receiving aerials A1, A2 located at different places. The signals detected by the receiving aerials A1 and A2 are directed to a correlator 3. The frequency spectrum of the output signal from the correlator is analysed, generally using a Fourier transform (FFT) method. Application particularly to revolution counting, range finding, direction and tracking control, detection of nonuniformity and discontinuities in materials. L'INVENTION EST RELATIVE A UN PROCEDE DE TRAITEMENT DU SIGNAL PAR CORRELATION.SELON L'INVENTION, ON UTILISE LE RAYONNEMENT MICRO-ONDE 1 ENGENDRE PAR UNE SOURCE D'EMISSION 2 ET D'UNE ANTENNE D'EMISSION A, ET SELON LA PRESENTE INVENTION, ON CAPTE A L'AIDE D'ANTENNES DE RECEPTION A, A, SITUEES EN DIFFERENTS LIEUX, LE RAYONNEMENT MICRO-ONDE EMIS. LES SIGNAUX PERCUS PAR LES ANTENNES DE RECEPTION A ET A, SONT DIRIGES VERS UN CORRELATEUR 3 DONT ON ANALYSE LE SPECTRE DE FREQUENCE DU SIGNAL DE SORTIE NOTAMMENT PAR TRANSFORMEE DE FOURIER FFT.LA PRESENTE INVENTION TROUVERA TOUT PARTICULIEREMENT SON APPLICATION DANS LA CINEMOMETRIE, LA TELEMETRIE, L'ASSERVISSEMENT EN DIRECTION ET EN POURSUITE, LA DETECTION D'HETEROGENEITE ET DE DISCONTINUITE DANS LES MATERIAUX.