Results 81 to 90 of about 4,347 (213)

Hybridization of Cognitive Radar and Phased Array Radar Having Low Probability of Intercept Transmit Beamforming

open access: yesInternational Journal of Antennas and Propagation, 2014
A novel design of a cognitive radar (CR) hybridized with a phased array radar (PAR) having a low probability of intercept (LPI) transmit beam forming is proposed. PAR directed high gain property reveals its position to interceptors.
Abdul Basit   +4 more
doaj   +1 more source

Technique for target detection and rangingbased on broadband LPI radars

open access: yesElectronics Letters, 2001
A processing technique for improving the ranging and detection capabilities of LPI radars and the measured performance of an experimental system are presented. The precision of the measured distance is very high even under low SNR conditions. The associated detection algorithm also exhibits good performance in noisy environments.
Pérez Martínez, Félix   +2 more
openaire   +2 more sources

Magnetic and electrical properties of Martian particles [PDF]

open access: yes
The only determinations of the magnetic properties of Martian materials come from experiments on the two Viking Landers. The results suggest Martian soil containing 1 to 10 percent of a highly magnetic phase.
Olhoeft, G. R.
core   +1 more source

LPI Air Defence Noise Radar

open access: yes, 2022
This dissertation is for researching the feasibility of a Low Probability of Intercept (LPI), Air Defence (AD) Noise Radar with high range and doppler resolution. The research is approached by first simulating an S-Band LPI Noise Radar detecting a flying target and determining its range and velocity. The simulated Noise Radar is then implemented in the
openaire   +1 more source

On The Identification of Low Probability of Intercept Radar Signals using Time-Frequency Signal Analysis and Processing [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2019
Low probability of intercept (LPI) radar signals are gaining recognition in the field of electronic warfare (EW) due to their unique characteristics. This paper presents an alternative method of analyzing and identifying these LPI signals using Wigner ...
AHMAD Ashraf Adamu   +3 more
doaj  

A proposal to conduct a Caribbean plate project involving the application of space technology to the study of Caribbean geology [PDF]

open access: yes
The Caribbean plate project is designed to improve current understanding of geological resources and geological hazards within the Caribbean region.
Wadge, G.
core   +1 more source

Workshop on Innovative Instrumentation for the In Situ Study of Atmosphere-Surface Interactions on Mars [PDF]

open access: yes
The speakers in the first session of the workshop addressed some of the continuing enigmas regarding the atmospheric composition, surface composition, and atmosphere-surface interactions on Mars; provided a description of a database of proposed payloads ...
Fegley, Bruce, Jr., Waenke, Heinrich
core   +1 more source

LPI radar sinyallerinin analizi

open access: yes, 2020
LPI RADAR S NYALLER N N ANAL ZCANER TEZELÖZLPI (Low Probability of Intercept, Yakalanma Olasılığı Düşük) radarlar, geniş frekansbantlarında çalışırlar, tepe güçleri çok düşüktür ve böylece düşman almaçlarıtarafından tespiti zorlaştırılmıştır. LPI radarlarda taşıyıcı sinyalin faz ya da frekansızamanın sabit olmayan bir fonsiyonudur.
openaire   +1 more source

Novel Power Control Scheme for Target Tracking in Radar Network with Passive Cooperation [PDF]

open access: yesRadioengineering, 2018
Distributed radar network systems (DRNS) have been shown to provide significant performance improvement. With the recent development, radar network has become an attractive platform for target tracking. In practice, the netted radars in DRNS are supposed
J. Tan, C. G. Shi, J. J. Zhou
doaj  

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