DocumentCode :
718741
Title :
An algorithm for time shift estimation of radio pulses received by spatially distributed sensors
Author :
Tashlinskiy, Alexander ; Tsarev, Mikhail
Author_Institution :
Radio Eng. Dept., Ulyanovsk State Tech. Univ., Ulyanovsk, Russia
fYear :
2015
fDate :
21-23 May 2015
Firstpage :
1
Lastpage :
4
Abstract :
Real-time recursive algorithms for estimation of the difference in arrival times of radio pulses received by spatially distributed sensors, such as antenna array elements, are proposed. The algorithms based on stochastic gradient descent optimization do not require large computational cost and any preliminary assessment of the signal parameters. They are effective in signal processing under a priori uncertainty, robust to impulse noise. Estimates evaluated by the algorithms converge to the optimal values at weak conditions. The processing can be carried out using both the pulse envelope and the unfiltered signal counts. The problem of measuring the time difference between the arrival of the pulses is considered as the problem of estimating the parameters their time alignment. The experimental results obtained using real and semi-real data, i.e. data from an experiment in an anechoic chamber.
Keywords :
gradient methods; radio networks; real-time systems; stochastic processes; anechoic chamber; antenna array elements; impulse noise; pulse envelope; radio pulses; real-time recursive algorithms; signal processing; spatially distributed sensors; stochastic gradient descent optimization; time difference; time shift estimation algorithm; Antenna arrays; Arrays; Convergence; Estimation; Linear programming; Receivers; Robustness; electronic warfare; estimation; filtering; radar; radio pulse; spatially distributed receivers; time shift;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control and Communications (SIBCON), 2015 International Siberian Conference on
Conference_Location :
Omsk
Print_ISBN :
978-1-4799-7102-2
Type :
conf
DOI :
10.1109/SIBCON.2015.7147237
Filename :
7147237
Link To Document :
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