Device for processing signals from a side-looking radar
AssigneeThomson-CSF
InventorsPierre Anthouard, Roland Carre
Life of this patent
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Abstract
Video signals delivered by a side-looking radar system during M successive recurrences in each section of a sweep range are sampled, coded and registered in the form of a series of samples of modulus .rho..sub.i and a series of samples of phase .phi..sub.i. The device performs the correlation with a series of samples .theta..sub.i of a synthesized replica by computing, for each recurrence, the modulus of a vector whose components are: ##EQU1##
Claims11
A device for processing video signals from a side-looking radar receiver, comprising input means for sampling and coding in digital form the phase .phi. and the amplitude .rho. of the incoming video signals, storage means for registering samples received and coded during a given number M of successive recurrences, generating means for producing M digital phase samples .theta..sub.i of a constant-modulus syntehtic replica signal, correlation means for computing, for each recurrence and each section of a sweep range, the sums ##EQU10## from 2M phase samples .phi..sub.i and modulus samples .rho..sub.i registered during the M preceding recurrences and M successive and respective samples .theta..sub.i of the replica signal, and arithmetic means for computing the modulus of the signal whose cartesian components are X' and Y'.
Dependencies are inferred from the claim text.