This paper presents a moving target detection technique for passive radar with satellite transmitter of opportunity and stationary receiver. The proposed technique relies on a proper processing of the data aiming at, first, correcting the range cell migration over the received echo, and then, transiting in a proper domain where the moving target can be isolated from the disturbance contribution. The former goal is obtained by applying the keystone transform. Then, the range compressed-slow-time data are transformed to Doppler centroid (DC)-Doppler frequency rate (DFR) domain via fractional Fourier transform (FrFT), where the coherent integration gain can provide enough SNR for the target detection. Ultimately, it is suggested that a proper processing of a long stream of data can increase the SNR making possible also the detection of low RCS targets. Numerical simulations show the effectiveness of this target detection technique to be employed for example in maritime surveillance frameworks.

Satellite-based PCL for moving target detection using keystone transform and FrFT / Li, Zhongyu; Santi, Fabrizio; Pastina, Debora; Lombardo, Pierfrancesco. - 8059338:(2016), pp. 1-4. (Intervento presentato al convegno 2016 CIE International Conference on Radar, RADAR 2016 tenutosi a Guangzhou; China) [10.1109/RADAR.2016.8059338].

Satellite-based PCL for moving target detection using keystone transform and FrFT

Fabrizio Santi
Secondo
;
Debora Pastina
Penultimo
;
Pierfrancesco Lombardo
Ultimo
2016

Abstract

This paper presents a moving target detection technique for passive radar with satellite transmitter of opportunity and stationary receiver. The proposed technique relies on a proper processing of the data aiming at, first, correcting the range cell migration over the received echo, and then, transiting in a proper domain where the moving target can be isolated from the disturbance contribution. The former goal is obtained by applying the keystone transform. Then, the range compressed-slow-time data are transformed to Doppler centroid (DC)-Doppler frequency rate (DFR) domain via fractional Fourier transform (FrFT), where the coherent integration gain can provide enough SNR for the target detection. Ultimately, it is suggested that a proper processing of a long stream of data can increase the SNR making possible also the detection of low RCS targets. Numerical simulations show the effectiveness of this target detection technique to be employed for example in maritime surveillance frameworks.
2016
2016 CIE International Conference on Radar, RADAR 2016
fractional Fourier transform (FrFT); Keystone transform; moving target detection; passive bistatic radar; passive coherent location (PCL); instrumentation
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Satellite-based PCL for moving target detection using keystone transform and FrFT / Li, Zhongyu; Santi, Fabrizio; Pastina, Debora; Lombardo, Pierfrancesco. - 8059338:(2016), pp. 1-4. (Intervento presentato al convegno 2016 CIE International Conference on Radar, RADAR 2016 tenutosi a Guangzhou; China) [10.1109/RADAR.2016.8059338].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1166876
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