Title
Performance of Coherent Delay Lock Loop in the Presence of CW Interference and Additive Noise
Abstract
In a coherent direct sequence spread spectrum system with a spreading sequence whose period is one bit long, the performance of a delay locked loop is analyzed in the presence of CW interference and additive noise. The impact of CW interference on DLL should be a discrete sinusoid more than Gaussian noise which is traditionally recognized. The frequency, amplitude and phase of the discrete sinusoid are proposed. The baseband model of DLL in the presence of CW is also proposed. According to the model, the steady-state tracking error of the first-order loop and the second-order loop is observed in the absence of noise. The Fokker-plank equation is utilized to analyze the steady-state tracking error probability distribution function (pdf) of the first-order loop in the presence of Gaussian noise. These expressions are then compared with computer simulations
Year
DOI
Venue
2006
10.1109/IMSCCS.2006.103
IMSCCS (1)
Keywords
Field
DocType
coherent delay lock loop,interference (wave),discrete sinusoid,coherent direct sequence spread,delay lock loop,steady-state tracking error,continuous wave interference,awgn,cw interference,steady-state tracking error probability,fokker-plank equation,firstorder loop,spread spectrum communication,probability distribution function,fokker-planck equation,gaussian noise,baseband model,delay lock loops,exponential distribution,second-order loop,coherent direct sequence spread spectrum system,first-order loop,additive noise,noise,second order,artificial neural networks,distribution function,computer simulation,baseband,fokker planck equation,first order,direct sequence spread spectrum,frequency,error probability,steady state,interference,mathematical model
Baseband,Telecommunications,Control theory,Delay-locked loop,Interference (wave propagation),Direct-sequence spread spectrum,Gaussian noise,Additive white Gaussian noise,Physics,Tracking error,Spread spectrum
Conference
Volume
ISBN
Citations 
1
0-7695-2581-4
0
PageRank 
References 
Authors
0.34
4
3
Name
Order
Citations
PageRank
Lei Shen103.38
Fangni Chen201.01
Shiju Li3207.40