Results 91 to 100 of about 2,464 (177)

Analysis of Multimode Low-Probability-of-Intercept (LPI) Communications with Atmospheric Effects [PDF]

open access: yes, 1996
This research expanded Low Probability of Intercept (LPI) communications analysis in two areas. First, multimode communication was included to account for ground to ground and air to ground links in addition to the standard air to air links traditionally
Ghordlo, Ala
core   +1 more source

Entanglement Assisted LPI and Covert Communications With SLM-Based Beam Steering Over Turbulent Optical Channels

open access: yesIEEE Access
In secure communications, the primary focus is on safeguarding the content of the message. In contrast, low probability of intercept (LPI) communications prioritize the privacy of the communication process itself.
Ivan B. Djordjevic, Ignacio A. Rojas
doaj   +1 more source

The origin of short-lived radionuclides and the astrophysical environment of solar system formation

open access: yes, 2008
Based on early solar system abundances of short-lived radionuclides (SRs), such as $^{26}$Al (T$_{1/2} = 0.74$ Myr) and $^{60}$Fe (T$_{1/2} = 1.5$ Myr), it is often asserted that the Sun was born in a large stellar cluster, where a massive star ...
Amelin Y.   +15 more
core   +1 more source

Poster Session 3

open access: yes
Pregnancy, Volume 2, Issue S1, January 2026.
wiley   +1 more source

Adaptive Detection Algorithm With Dynamic Dual-Threshold for Low Probability of Intercept Radar Signals and Its FPGA Implementation

open access: yesIEEE Access
This paper presents an adaptive signal detection algorithm with dynamic dual-threshold for low probability of intercept (LPI) radar signals in complex electromagnetic environments.
Xiaoji Wei, Bilu Luo, Chunfang Gao
doaj   +1 more source

Antenna Array Beamforming for Low Probability of Intercept Radars [PDF]

open access: yes, 2013
A radar system's focus on low probability of intercept (LPI) performance has become increasingly important as systems designed for electronic support measures (ESM) and electronic counter measures (ECM) continue to become more prevalent.
Goad, Daniel
core  

Joint Design of LPI Transmit Waveform and Receive Beamforming Based on Neural Networks for FDA-MIMO

open access: yesLeida xuebao
Traditional Low Probability of Intercept (LPI) array radars that use phased array or Multiple-Input Multiple-Output (MIMO) systems face limitations in terms of controlling radiation energy only at specific angles and cannot achieve energy control over ...
Deshun LIU   +3 more
doaj   +1 more source

Shallow versus Deep Integration between Mediterranean Countries and the EU and within the Mediterranean Region [PDF]

open access: yes
The paper aims at assessing the specific impact of shallow versus deep integration between Mediterranean (MED) countries1 and their partners in the European Union (EU) as well as between the MED countries themselves.
Ahmed Farouk Ghoneim   +3 more
core  

Speed Money: Time, Corruption, and Trade [PDF]

open access: yes
This paper shows that longer trade times are associated with higher levels of trade-related corruption, consistent with a theoretical framework in which “fast” producers earn higher profits than “slow” ones, but may have to pay “speed money” to possibly ...
Shepherd, Ben
core   +1 more source

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