Abstract: A method for identifying a gunshot occurrence. According to one embodiment, microphone data and inertial motion data are acquired with a hand-held device. Based on an acoustic criterion, a determination is made as to whether a gunshot has been produced. Based on a correlation criterion applied to the inertial motion data, a determination is made as to whether the gunshot was produced from fire produced by a first person having physical possession of the hand-held device or by a second person spaced away from the first person.

Abstract: A method for identifying a gunshot occurrence. According to one embodiment, microphone data and inertial motion data are acquired with a hand-held device. Based on an acoustic criterion, a determination is made as to whether a gunshot has been produced. Based on a correlation criterion applied to the inertial motion data, a determination is made as to whether the gunshot was produced from fire produced by a first person having physical possession of the hand-held device or by a second person spaced away from the first person.

Abstract: A method for identifying a gunshot occurrence. According to one embodiment, microphone data and inertial motion data are acquired with a hand-held device. Based on an acoustic criterion, a determination is made as to whether a gunshot has been produced. Based on a correlation criterion applied to the inertial motion data, a determination is made as to whether the gunshot was produced from fire produced by a first person having physical possession of the hand-held device or by a second person spaced away from the first person.

Abstract: A method for identifying a gunshot occurrence. According to one embodiment, microphone data and inertial motion data are acquired with a hand-held device. Based on an acoustic criterion, a determination is made as to whether a gunshot has been produced. Based on a correlation criterion applied to the inertial motion data, a determination is made as to whether the gunshot was produced from fire produced by a first person having physical possession of the hand-held device or by a second person spaced away from the first person.

Abstract: Large-mode-area single material holey fiber tapers with collapsed by nonadiabatic process air holes in the waist for fiber optic sensors and a method for manufacturing these tapers are claimed. The gradual collapsing of the holes is achieved by tapering the fibers with a “slow-and-hot” method. This nonadiabatic process makes the fundamental mode of the holey fiber to couple to multiple modes of the solid taper waist. Owing to the beating between the modes, the transmission spectra of the tapered single material holey fibers exhibit several interference peaks. That means the all-fiber Mach-Zehnder type interferometer is formed in a holey fiber such a way. The multiple peaks, combined with a fitting algorithm, allow high-accuracy refractometric measurements, temperature-independent strain measurements, measurements of high temperature and may be used for measuring many others parameters.