Multi-Frequency Target Detection Techniques for DVB-T Based Passive Radar Sensors.
This paper investigates the possibility to improve target detection capability in a DVB-T- based passive radar sensor by jointly exploiting multiple digital television channels broadcast by the same transmitter of opportunity. Based on the remarkable results obtained by such a multi-frequency approach using other signals of opportunity (i.e., FM radio broadcast transmissions), we propose appropriate modifications to the previously devised signal processing techniques for them to be effective in the newly considered scenarios. The resulting processing schemes are extensively applied against experimental DVB-T-based passive radar data pertaining to different surveillance applications. The obtained results clearly show the effectiveness of the proposed multi-frequency approaches and demonstrate their suitability for application in the considered scenarios.
DIET Department, Sapienza University of Rome, Rome 00184, Italy. martelli@diet.uniroma1.it.
Tatiana
T
Martelli
DIET Department, Sapienza University of Rome, Rome 00184, Italy. fabiola.colone@uniroma1.it.
Fabiola
F
Colone
Leonardo Company, Via Tiburtina km 12,400, Rome 00131, Italy. enrico.tilli@leonardocompany.com.
Enrico
E
Tilli
Leonardo Company, Via Tiburtina km 12,400, Rome 00131, Italy. annarita.dilallo@leonardocompany.com.
Annarita
A
Di Lallo
DVB-T signals; multi-frequency; non-coherent integration; passive radar; target detection