Patent ID: 7760131

Claim:
A digital line-of-sight (LOS) processor for detecting electromagnetic (EM) pulses reflected off a target from a source that emits the EM pulses at known pulse repetition intervals and computing a LOS to the target, comprising: a plurality of A/D converters configured to convert respective analog signals from a multi-channel detector into a plurality of digital signals on respective individual channels; at least one digital summer, each said summer configured to sum a different plurality of said digital signals to produce a digital signal on a different sum channel; a plurality of digital pulse detectors configured to compare sample amplitudes of a plurality of digital signals on a plurality of channels including at least one sum channel to respective detection thresholds to detect pulses; a memory; a memory controller that upon detection of a pulse by any one of the digital pulse detectors stores a plurality of samples for each said individual channel in said memory; and an embedded processor configured to process the sample amplitudes stored in memory for the individual channels to calculate a LOS to the target.