Title
Improving alignment of noisy signals using an iterative Zero Phase method
Abstract
This paper deals with the study of the performance of different methods to align noisy one-dimensional signals shifted in time. The methods studied in this paper are the Maximum Position method, the Cross-correlation method and the Zero Phase method. Results show the best performance of the Zero Phase method for middle and high values of SNR. A statistical study is carried out in order to achieve a theoretical expression for the value of the performance of the Zero Phase method. This expression demonstrate the depen- dence of the accuracy of the method on the number of samples. So, a new method is proposed. First the Zero Phase algorithm is used to align the signals. Then, those samples of the aligned signals which only contain noise are eliminated. At last, the Zero Phase algorithm is again applied over the length-reduced profiles. Results show an improvement up to 48%.
Year
Venue
Keywords
2005
EUSIPCO
iterative methods,signal classification,signal denoising,snr,cross-correlation method,iterative zero phase method,maximum position method,noisy signals alignment
Field
DocType
ISBN
Radar,Mathematical optimization,Signal-to-noise ratio,Algorithm,Mathematics
Conference
978-160-4238-21-1
Citations 
PageRank 
References 
3
0.60
2
Authors
4
Name
Order
Citations
PageRank
roberto gilpita1577.79
Manuel Rosa-Zurera219236.27
raul vicenbueno3557.55
Utrilla-Manso, M.430.60