Patent ID: 7936300
Filing Date: 2011-05-03
Classification: G01S

Abstract:
1. A method of processing replies from targets interrogated by a surveillance radar for interrogations in mode S, independently for each target present in the reception lobe of the radar, whereby the different targets present in the reception lobe of the radar SSR are interrogated at least once, all the reply signals received for this lobe for each target are collected after each interrogation, a reply detection processing operation is performed in a signal processing module and errors are detected and corrected and the corresponding blips are extracted, wherein said signal quality detection and determination processing operation is implemented, in the event of decoding failure by the signal processing operation, by a data processing module which forms a synthetic message with the stored set of replies to each interrogation for one and the same target, establishing, for each bit of each message, the value and the quality of this bit and performing the detection and correction of errors using this synthetic message.