Title
Design of a digitally programmable delay-locked-loop for a low-cost ultra wide band radar receiver
Abstract
This paper presents a digitally programmable delay line intended for use as a timing generator in a RADAR ranging system. Traditional delay lines are realized selecting the delayed signal from a tap in a cascade of delay elements, resulting in a delay resolution limited by the matching errors between the delay elements. The architecture of the programmable delay line presented in this paper uses a ΣΔ modulator to generate a delay unaffected by matching and a delay locked loop to filter the excess jitter noise from the output clock. System level simulations show that it is possible to obtain a resolution of 11 bits corresponding to an average output rms jitter noise of 11.4 ps.
Year
DOI
Venue
2003
10.1109/ISCAS.2003.1205518
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium
Keywords
Field
DocType
circuit simulation,delay lines,delay lock loops,network synthesis,programmable circuits,radar receivers,sigma-delta modulation,timing circuits,timing jitter,ΣΔ modulator,11 bit,RADAR ranging system,delay-locked loop,digitally programmable DLL,jitter noise filter,low-cost radar receiver,output clock,programmable delay line,timing generator resolution,ultra wide band radar receiver
Delay calculation,Radar,Delay line oscillator,Computer science,Delay-locked loop,Group delay and phase delay,Digital delay line,Electronic engineering,Jitter,Matched filter
Conference
Volume
ISBN
Citations 
1
0-7803-7761-3
1
PageRank 
References 
Authors
0.40
2
4
Name
Order
Citations
PageRank
Nuno F. Paulino17224.92
Serrazina, M.210.40
João Goes38827.95
Adolfo Steiger-Garcao416611.37