Please use this identifier to cite or link to this item:
http://hdl.handle.net/2117/2061
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| Title: | CFAR data fusion center with inhomogeneous receivers |
| Authors: | Elias Fusté, Antoni
Broquetas Ibars, Antoni |
| Other authors: | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
| Keywords: | Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Radiocomunicació i exploració electromagnètica::Teledetecció
Signal processing
Signal detection
Radar
probability
radar interference
radar receivers
radar theory
signal detection
CFAR data fusion center
CFAR receivers
Rayleigh targets
cell averaging CFAR detector
distributed sensors
fixed level of false alarms
fusion decision OR rule
inhomogeneous receivers
interference
ordered statistic CFAR detector
probability of detection
recursive formulation
threshold levels
Processament del senyal
Detecció del senyal
Radar |
| Publisher: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| Abstract: | Detection systems with distributed sensors and data fusion are increasingly used by surveillance systems. A system formed by N inhomogeneous constant false alarm rate (CFAR) detectors (cell-averaging (CA) and ordered statistic (OS) CFAR detectors) is studied. A recursive formulation of an algorithm that permits a fixed level of false alarms in the data fusion center is presented, to set the optimum individual threshold levels in the CFAR receivers and the optimum `K out of N' decision rule in order to maximize the total probability of detection. The algorithm also considers receivers of different quality or with different communication channel qualities connecting them with the fusion center. This procedure has been applied to several hypothetical networks with distributed CA-CFAR and OS-CFAR receivers and for Rayleigh targets and interference, and it was seen that in general the fusion decision OR rule is not always the best.
Peer reviewed |
| Appears in Collections: | Documents de recerca
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