Results 241 to 250 of about 1,233,917 (262)

GNSS-based passive radar

2017
This chapter is an introduction to passive synthetic aperture radar (SAR) using global navigation satellite systems (GNSS), as illuminators of opportunity. Such systems include the global positioning system (GPS), the Russian GLONASS system, or the forthcoming Galileo constellation.
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Passive bistatic radar enhancement devices

Proceedings of the IEE Part C: Monographs, 1962
The usual enhancement devices are constructed to give a maximum monostatic echo area. This is achieved by setting up a uniform phase distribution in the effective aperture of the device independent of the angle of incidence. Bistatic echo-area enhancement may be achieved by altering this phase distribution.
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A Multiband Passive Radar Demonstrator

2006 International Radar Symposium, 2006
Passive radar systems that exploit signals from the plethora of RF emissions that exist in the external environment offer a number of advantages over conventional active radar system, including procurement and operational cost saving. Each emitter has its own characteristics, including waveforms, which dictate system performance.
Dale Gould, Robert Pollard, Carlos Sarno, Paul Tittensor   +3 more
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Short-range passive radar potentialities

2017
The potentialities of passive radar (PR) will be illustrated in this chapter with reference to the surveillance of areas of limited extent. Despite the exploitation of the PR principle in short-range applications could appear as a simple task, it is shown that it brings a number of challenging issues that must be solved to benefit from its potential ...
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Passive MIMO radar networks

2017
In distributed sensing applications, the nodes of a sensor network cooperatively detect and localize targets of interest. In particular, active multiple-input multipleoutput (MIMO) radar (AMR) uses multiple transceivers to transmit separable signals and receive the scattered returns, while passive MIMO radar (PMR) uses multiple receivers to receive the
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Passive radar via LTE signals of opportunity

2014 IEEE International Conference on Communications Workshops (ICC), 2014
Passive radars relying on signals of opportunity enable new applications based on stealth tracking of targets without the need of radar signals emissions. Long term evolution (LTE) base stations employing orthogonal frequency division multiplexing (OFDM) signals are excellent candidates as illuminators of opportunity thanks to their wide availability ...
BARTOLETTI, Stefania, CONTI, Andrea, Win, Moe Z.   +2 more
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First results of air target detection using single channel passive radar utilizing GPS illumination

International Radar Conference, 2019
The paper presents preliminary results of moving airborne target detection done by a passive radar demonstrator exploiting GPS (Global Positioning System) L1 band signals for target illumination.
Konrad Gronowski, P. Samczyński, K. Stasiak, K. Kulpa   +3 more
semanticscholar   +1 more source

Multichannel passive radar receiver platform

2015 17th International Conference on Transparent Optical Networks (ICTON), 2015
Passive radars exploit the already existing signals in the environment to detect targets. The available sources of illuminations have a very wide range both in frequency of operation and bandwidth. The capability of fast and effective reconfiguration has especially great importance on this field. Software defined radio systems can be flexible enough to
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Introduction to passive radar

2023
Marco Martorella, Diego Cristallini
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Passive radar systems

IEE Proceedings - Radar, Sonar and Navigation, 2005
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