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Prediction of phase noise in a TWT based transmitter for a pulsed doppler radar

DSpace at IIT Bombay

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Title Prediction of phase noise in a TWT based transmitter for a pulsed doppler radar
 
Creator RANADE, SULABHA
SHEVGAONKAR, RK
PATRO, YGK
 
Subject doppler radar
phase modulation
radar transmitters
travelling wave amplifiers
 
Description In traveling wave tube amplifier (TWT) based transmitters the velocity modulation process inside the TWT gives rise to unwanted phase variations in the RF termed as phase modulation. These phase variations can be detected in the return echo of the pulsed Doppler radar leading to a risk of false targets being detected. This paper presents the relation between the RF phase variations and the ripple component of the high voltage biasing supply of the TWT. It then presents a method of predicting the phase noise after studying and modeling the parameters responsible for it by simulating the phase noise on the personal computer. This simulated phase noise is then compared with the performance of the actual working system.
 
Publisher IEEE
 
Date 2008-12-16T12:05:58Z
2011-11-27T15:08:22Z
2011-12-15T09:57:13Z
2008-12-16T12:05:58Z
2011-11-27T15:08:22Z
2011-12-15T09:57:13Z
1996
 
Type Article
 
Identifier Proceedings of the Twenty-Second International Power Modulator Symposium, Boca Raton, USA, 25-27 June 1996, 122-124
0-7803-3076-5
10.1109/MODSYM.1996.564466
http://hdl.handle.net/10054/350
http://dspace.library.iitb.ac.in/xmlui/handle/10054/350
 
Language en