Gunshot detection system and method
First Claim
1. A method for use in detecting and locating a muzzle flash event, the method comprising imaging electromagnetic radiation by an imager comprising a non cryogenically cooled Photo Detector Array (PDA) sensitive in at least a portion of a SWIR spectrum, wherein said electromagnetic radiation propagating towards the PDA undergoes filtering for selectively passing towards the PDA the electromagnetic radiation of one or more spectral ranges of relatively low transmission in atmosphere of said at least portion of the SWIR spectrum.
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Abstract
A device and a method for use in detection of a muzzle flash event is described. The device can include a Photo Detector Array (PDA), sensitive in at least a portion of the NIR and SWIR spectrum, and a filter of electromagnetic radiation selectively passing in this portion a spectral range of low atmospheric transmission, the PDA has an integration time shorter than a duration of the muzzle flash event.
26 Citations
19 Claims
- 1. A method for use in detecting and locating a muzzle flash event, the method comprising imaging electromagnetic radiation by an imager comprising a non cryogenically cooled Photo Detector Array (PDA) sensitive in at least a portion of a SWIR spectrum, wherein said electromagnetic radiation propagating towards the PDA undergoes filtering for selectively passing towards the PDA the electromagnetic radiation of one or more spectral ranges of relatively low transmission in atmosphere of said at least portion of the SWIR spectrum.
- 10. A device for use in detection and location of a muzzle flash event, the device comprising an imager comprising a non cryogenically cooled Photo Detector Array (PDA) sensitive in at least a portion of the SWIR spectrum, and a filter of electromagnetic radiation configured and operable for selectively passing therethrough spectral bands corresponding to relatively low transmission of the electromagnetic radiation in atmosphere for said at least portion of the SWIR spectrum.
Specification