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LPI/LPD Detection Sensitivity Limitations
2014 IEEE Military Communications Conference, 2014LPI/LPD (Low Probability of Intercept/Low Probability of Detection) analyses typically follow the original work of Urkowitz [1] to obtain probability of detection for a specified false alarm rate. Such analyses are based on a uniform time invariant noise background.
Robert B. Dybdal, Kwok M. Soohoo
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Interception of LPI radar signals
IEEE International Conference on Radar, 2002The interception problem is reviewed, an LPI radar design is examined and the performance of intercept receivers of the future is considered. The receiver needed to intercept LPI signals must respond across a broad band and provide noncoherent integration capabilities over times comparable to the coherent (or noncoherent) integration times used by ...
G. Schrick, R.G. Wiley
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LPI waveforms for active sonar?
2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720), 2004The idea of a low probability of intercept (LPI) waveform is that its form is chaotic. It can of course be recalled by the transmitter (platform), and matched to what is received; but to the target it appears only as noise, and consequently the robust target receiver can only detect a rise in energy.
P. Willett, J. Reinert, R. Lynch
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LPI in pulsed laser space communications
IEEE Journal on Selected Areas in Communications, 1993A basic low-probability of intercept (LPI) study for a pulsed-laser pulse position modulated (PPM) optical link with a colocated direct detection intercepting receiver is presented. The latter is considered to be a form of optical radiometer using continuous threshold testing to detect the presence of the transmitting laser.
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LPI and BER Performance of a Chaotic CDMA System
IEEE Vehicular Technology Conference, 2006Low probability of intercept (LPI) performance of a direct-sequence code division multiple access (DS-CDMA) system is investigated in this paper; both chaotic and pseudorandom binary spreading sequences are considered. Several intercept receiver structures, including energy detector, synchronous and asynchronous, coherent and noncoherent, are examined,
Jin Yu 0002 +3 more
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LPI Optical Communication System
MILCOM 1984 - IEEE Military Communications Conference, 1984An optical communication system based on the use of the GaAs laser diode as the light source has been developed and demonstrated. The system uses one inch transmit optics to provide a beam-width of about 18 mrad and has a receive field of view of about 35 mrad with 2 inch optics.
J.D. Barry, G.S. Mecherle
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Practical LPI Communication with Noise-Shaped Signaling
2019 International Conference on Information and Communication Technology Convergence (ICTC), 2019As Electronic Warfare (EW) relevant technologies develops, more complex and solid defense algorithm is required to keep the military secrets and message in safe. In the wireless communication system, Low Probability of Interception (LPI) communication algorithms, based on Code Division Multiple Access (CDMA), had been introduced to keep the message ...
Jun Sung Choi +5 more
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Feasibility of range estimation using sonar LPI
2010 44th Annual Conference on Information Sciences and Systems (CISS), 2010Using a detailed waveform-based simulation framework, a study on the feasibility of LPI sonar is performed for covert range estimation. A frequency selective channel filter is applied for realistic ocean simulation. The platform uses matched filtering and the target uses energy detection for processing the received signal. The objective of the platform
J. Daniel Park +3 more
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Performance bounds for LPI communications
Conference Proceedings on Tactical Communications, Vol.1., 2002Evaluation of the theoretical lower bound on signal-to-noise ratio for a spread spectrum system is provided. The bound is based on Shannon's sphere packing bound and is evaluated for a finite probability of error and coding complexity. Coding delay, which is the time from when the first information bit enters the encoder to when the first information ...
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LPI-labile plasma iron in iron overload
Best Practice & Research Clinical Haematology, 2005Labile plasma iron (LPI) represents a component of non-transferrin-bound iron (NTBI) that is both redox-active and chelatable, capable of permeating into organs and inducing tissue iron overload. It appears in various types of hemosiderosis (transfusional and non-transfusional) and in other iron-overload conditions.
Z Ioav, Cabantchik +3 more
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