Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/50588
Title: Performance analysis of a homodyne receiver in modulated backscattered system for intelligent transportation
Authors: Marath, Ashok Kumar 
Chia, Yan Wah Michael 
Ko, Chi Chung 
Issue Date: 1999
Source: Marath, Ashok Kumar,Chia, Yan Wah Michael,Ko, Chi Chung (1999). Performance analysis of a homodyne receiver in modulated backscattered system for intelligent transportation. IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall 2 : 1198-1202. ScholarBank@NUS Repository.
Abstract: Radio frequency transponders are finding increasing applications in intelligent transportation for automatic transactions. Low system cost is one major concern. Modulated backscattering is one such concept, which is attractive in terms of price and simplicity. This paper looks at the major system level issues in the implementation and possible solutions. Based on our study, the scattering from nearby moving objects and carrier leakage are some of the key parameters limiting the sensitivity of the system. An homodyne system was evaluated using behavioural model based on discrete time domain, found in HP EESOF, a commercial CAD. Selection of suitable coding with proper filtering is found to be a possible solution for problems due to scattering from moving objects. Our results also show that the front end low noise amplifier does not provide any improvement in system sensitivity in systems where carrier leakage is the dominant mechanism limiting the sensitivity. Possible solutions are also discussed.
Source Title: IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
URI: http://scholarbank.nus.edu.sg/handle/10635/50588
ISBN: 0780354354
ISSN: 07400551
Appears in Collections:Staff Publications

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