Results 11 to 20 of about 484,819 (300)

Analysis of Low Probability of Detection Capability for Chaotic Standard Map-Based FH-OFDMA System

open access: yesApplied Sciences, 2021
A frequency hopping orthogonal frequency division multiple access (FH-OFDMA) can provide low probability of detection (LPD) and anti-jamming capabilities to users against adversary detectors. To obtain an extreme LPD capability that cannot be provided by
Junwoo Jung   +4 more
doaj   +2 more sources

Refined PHD Filter for Multi-Target Tracking under Low Detection Probability

open access: yesSensors, 2019
Radar target detection probability will decrease as the target echo signal-to-noise ratio (SNR) decreases, which has an adverse influence on the result of multi-target tracking.
Sen Wang, Qinglong Bao, Zengping Chen
doaj   +2 more sources

High-Resolution, Low Probability of Detection Links Through SDRs

open access: yesIEEE Journal of Microwaves
This paper presents the design and implementation of a low probability of detection (LPD) communication link using a software-defined radio (SDR) platform. The proposed LPD link was tested in an indoor environment using an over-the-air (OTA) network. The
John M. Willis   +4 more
doaj   +2 more sources

Low Probability of Detection Communication: Opportunities and Challenges [PDF]

open access: yesIEEE Wireless Communications, 2019
Low probability of detection (LPD) communication has recently emerged as a new transmission technology to address privacy and security in wireless networks. Recent studies have established the fundamental limits of LPD communication in terms of the amount of information bits that can be conveyed from a transmitter to a receiver subject to a constraint ...
Shihao Yan   +3 more
openaire   +2 more sources

Using areas of known occupancy to identify sources of variation in detection probability of raptors: taking time lowers replication effort for surveys [PDF]

open access: yesRoyal Society Open Science, 2016
Species occurring at low density can be difficult to detect and if not properly accounted for, imperfect detection will lead to inaccurate estimates of occupancy.
Campbell Murn, Graham J. Holloway
doaj   +1 more source

Optimal Search Strategy of Low-Altitude Target for Airborne Phased Array Radar Using Digital Elevation Model

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The search for low-altitude targets becomes a more challenging task for airborne phased array radar, due to the limited system resources and serious ground clutter.
Jiawei Luo   +6 more
doaj   +1 more source

Limits of Reliable Communication with Low Probability of Detection on AWGN Channels [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 2013
Major revision in v2. Context, esp. the relationship to steganography updated. Also, added discussion on secret key length. Results are unchanged from previous version. Minor revision in v3. Major revision in v4, Clarified derivations (adding appendix), also context, esp. relationship to previous work in communication updated.
Boulat A. Bash   +2 more
openaire   +4 more sources

Analysis of the low-probability-of-detection characteristics of ultraviolet communications

open access: yesOptics Express, 2020
Deep ultraviolet wavelengths have been proposed for low-probability-of-detection (LPD) communications, particularly for non-line-of-sight (NLOS) links, because of the increased atmospheric absorption at these wavelengths. Motivated by this favorable feature, we develop a modeling framework to quantitatively study the LPD characteristics of ultraviolet ...
Michael J. Weisman   +4 more
openaire   +2 more sources

Assessing the impact of signal normalization: Preliminary results on epileptic seizure detection [PDF]

open access: yes, 2011
21.08.12 KB. Accepted version, ok to add to Spiral. IEEE policy.Signal normalization is an essential part of patient independent algorithms, for example to correct for variations in signal amplitude from different parts of the body, prior to applying a ...
E. Rodriguez-Villegas   +8 more
core   +1 more source

Assessing respiratory pathogen communities in bighorn sheep populations: Sampling realities, challenges, and improvements. [PDF]

open access: yesPLoS ONE, 2017
Respiratory disease has been a persistent problem for the recovery of bighorn sheep (Ovis canadensis), but has uncertain etiology. The disease has been attributed to several bacterial pathogens including Mycoplasma ovipneumoniae and Pasteurellaceae ...
Carson J Butler   +11 more
doaj   +1 more source

Home - About - Disclaimer - Privacy