Title :
Passive Bistatic Radar based on mixed DSSS and OFDM WiFi transmissions
Author :
Colone, Fabiola ; Falcone, Paolo ; Lombardo, Pierfrancesco
Author_Institution :
Dept. of Inf. Eng., Electron. & Telecommun. (DIET), Univ. of Rome La Sapienza, Rome, Italy
Abstract :
In this paper the practical feasibility of a mixed WiFi transmissions based passive bistatic radar (PBR) is analyzed. The required data processing steps are described with reference to mixed DSSS and OFDM transmissions for both: (i) the control of the signal Ambiguity Function usually yielding a high sidelobe level and (ii) the removal of the undesired signal contributions which strongly limit the useful dynamic range. The performance of the conceived system is evaluated with reference to typical signals broadcasted by a IEEE 802.11 access point. This allowed us to demonstrate the potentialities of a WiFi-based PBR for local area surveillance applications.
Keywords :
OFDM modulation; passive radar; spread spectrum communication; wireless LAN; IEEE 802.11 access point; OFDM WiFi transmission; PBR; data processing steps; dynamic range; local area surveillance applications; mixed DSSS transmission; passive bistatic radar; sidelobe level; signal ambiguity function control; undesired signal contribution removal; Doppler effect; IEEE 802.11 Standards; Modulation; OFDM; Passive radar; Spread spectrum communication; Surveillance; Passive radar; wireless networks;
Conference_Titel :
Radar Conference (EuRAD), 2011 European
Conference_Location :
Manchester
Print_ISBN :
978-1-4577-1156-5
