System and method for detecting and de-interleaving radar emitters
AssigneeITT Manufacturing Enterprises, Inc.
InventorsPaul C. Wang, Matthew Orr, Mitchell Sparrow, Martin Apa
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Abstract
A method of classifying radar emitters includes the steps of: (a) receiving pulses from multiple radar emitters; (b) categorizing received pulses based on pulse data descriptors (PDWs); (c) forming clusters of received pulses based on the PDWs; and (d) de-interleaving pulses from the cluster using one of a differential time of arrival (DTOA) histogram technique, a spectrum estimation technique, or a Hough transform technique. Step (a) includes receiving the pulses during a predetermined time interval and storing the received pulses as a snapshot representing the pulses present during the predetermined time interval.
Claims19
A method of classifying radar emitters comprising the steps of:
- (a) receiving pulses from multiple radar emitters;
- (b) categorizing received pulses based on pulse data descriptors (PDWs);
- (c) forming clusters of received pulses based on the PDWs;
- and
- (d) extracting pulses from at least one of the formed clusters, based on pulse repetition intervals (PRIs) between the extracted pulses, to form a pulse train belonging to a radar emitter;
- wherein forming clusters includes sorting the PDWs based on each PDW's Euclidean distance from the center of a respective cluster.
A method of classifying radar emitters comprising the steps of:
- (a) receiving pulses from multiple radar emitters;
- (b) categorizing received pulses based on pulse data descriptors (PDWs);
- (c) forming clusters of received pulses based on the PDWs;
- and
- (d) de-interleaving pulses from the cluster using one of a differential time of arrival (DTOA) histogram technique, a spectrum estimation technique, or a Hough transform technique;
- wherein forming clusters includes sorting the PDWs based on each PDW's Euclidean distance from the center of a respective cluster.
A system for classifying radar emitters comprising
- a receiver for receiving a plurality of signals from radar emitters,
- a processor coupled to the receiver for
- (a) generating data components for each signal received from the radar emitters,
- (b) forming multi-dimensional samples from the generated data components,
- (c) sorting the multi-dimensional samples into a plurality of data clusters, based on their respective proximity to a center of each data cluster, and
- (d) extracting pulses from at least one of the formed clusters, based on pulse repetition intervals (PRIs) between the extracted pulses, to form a pulse train belonging to a radar emitter,
- wherein the processor is configured to sort the multi-dimensional samples based on each sample's Euclidean distance from the center of a respective cluster.
Dependencies are inferred from the claim text.