Results 231 to 240 of about 9,680 (278)

Receiver diversity impact on GSM Passive Coherent Location systems

2015 IEEE Radar Conference (RadarCon), 2015
The paper discusses the advantages of receiver diversity in GSM based Passive Coherent Location (PCL) systems with focus on the detection of small targets at short ranges. Based on the evaluation of real data acquired in an experimental trial in Eckernfoerde, the multistatic configuration (multi-receiver and multi-transmitter) is compared with the ...
R. Zemmari, M. Feldmann, B. Knoedler
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Passive coherent location radar demonstration

Proceedings of the Thirty-Fourth Southeastern Symposium on System Theory (Cat. No.02EX540), 2003
This paper describes a passive coherent location (PCL) radar system developed by Dynetics, Inc. This system uses commercial FM broadcast signals for the radar waveform. This paper presents a technical description of the system and performance data.
C.L. Zoeller, M.C. Budge, M.J. Moody
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Data Fusion in MIMO DVB-T-Based Passive Coherent Location

IEEE Transactions on Aerospace and Electronic Systems, 2013
Efficient combination of MIMO (multiple-input multiple-output) and PCL (passive coherent location) ideas is expected to improve performance of localization schemes. While, in general, adding the number of transmit and receive antennas provides spatial diversity, it is possible to obtain similar effects by using multiple transmitters that are already ...
Mojtaba Radmard, Seyyed Mohammad Karbasi, Mohammad Mahdi Nayebi   +2 more
exaly   +2 more sources

Passive coherent location radar for security of especially important objects

2016 IEEE V Forum Strategic Partnership of Universities and Enterprises of Hi-Tech Branches (Science. Education. Innovations), 2016
Design principles and technical proposal of practical implementation of passive radars utilizing illumination signals of third-party transmitters are presented. The configurations of experimental model and experimental prototypes of passive coherent location radar (PCLR) are described.
Evgenii Vorobev
exaly   +2 more sources

Multitarget Passive Coherent Location with Transmitter-Origin and Target-Altitude Uncertainties

IEEE Transactions on Aerospace and Electronic Systems, 2012
Passive coherent location (PCL) systems, which use existing commercial signals (e.g., FM broadcast, digital TV) as the illuminators of opportunity, is an emerging technology in air defence systems. PCL systems have many advantages such as low cost, covert operation, and low vulnerability to electronic countermeasures, over conventional radar systems ...
Tharmarasa, R., Subramaniam, M., Nadarajah, Nandakumaran, Kirubarajan, T., McDonald, M.   +4 more
openaire   +3 more sources

Pilot‐based detection for DVB‐T passive coherent location radars

IET Radar, Sonar and Navigation, 2020
This study investigates the feasibility of pilot-based detection for passive coherent location (PCL) radars exploiting digital video broadcasting-terrestrial (DVB-T) signals. The DVB-T signal is formed by two parts: a data signal and a pilot signal.
François Horlin, Xavier Neyt
exaly   +2 more sources

Passive Coherent Location With Unknown Transmitter States

IEEE Transactions on Aerospace and Electronic Systems, 2017
This paper addresses the problem of passive coherent location (PCL) using a mobile transmitter with unknown state as an illuminator of opportunity. First, the necessary and sufficient conditions for local observability are derived using the Fisher information matrix (FIM).
Yunfei Guo, Ratnasingham Tharmarasa, Thiagalingam Kirubarajan, Silvester Wong, Rahim Jassemi-Zargani   +4 more
openaire   +1 more source

Doppler compensation for passive coherent location

6th International Conference on Signal Processing, 2002., 2003
For target movement without velocity information in a passive coherent location system, the unknown Doppler shift between the direct signal and the target echo results in a decrease of the highest peak output value and the occurrence of some false peaks. Several Doppler compensation methods are compared in terms of the Doppler decorrelation loss factor.
null Tang Xiaoming, null He You, null Dong Shijia, null Ni jinlin   +3 more
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Passive tracking with sensors of opportunity using passive coherent location

SPIE Proceedings, 2008
Passive coherent location (PCL), which uses the commercial signals as illuminators of opportunity, is an emerging technology in air defense systems. The advantages of PCL are low cost, low vulnerability to electronic counter measures, early detection of stealthy targets and low-altitude detection.
Mahes Subramaniam, R. Tharmarasa, Mike McDonald, T. Kirubarajan   +3 more
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ANNDP-TBD algorithm for passive coherent location

2017 36th Chinese Control Conference (CCC), 2017
In order to address the problem of detecting and tracking low signal-to-noise-ratio (SNR) targets in bistatic passive coherent location (PCL) system, an improved dynamic programming track-before-detect algorithm is proposed. First, the polar measurements are converted to Cartesian measurements.
Peinan Zhang, Jian Zheng, Jinxing Pan, Songtao Feng, Yunfei Guo   +4 more
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