Group Delay Estimation with Wideband Signals

1979 ◽  
Vol 27 (12) ◽  
pp. 1908-1910 ◽  
Author(s):  
R. Zakarevicius
Keyword(s):  
Group Delay ◽  
Delay Estimation ◽  
Wideband Signals

scholarly journals Methods for mutual time delay estimation of wideband signals based on nonlinear digital filtering

2019 ◽  
Vol 30 ◽  
pp. 03008
Author(s):  
Roman Ershov ◽  
Oleg Morozov
Keyword(s):  
Time Delay ◽  
Communication Systems ◽  
Satellite Communication ◽  
Signal To Noise Ratio ◽  
Digital Filtering ◽  
Time Delay Estimation ◽  
Delay Estimation ◽  
Wideband Signals ◽  
Correlation Processing

Methods for mutual time delay estimation of wideband signals propagating in satellite communication systems are proposed. The signals are propagated in different channels and received with low signal-to-noise ratio. A characteristic feature of satellite channel is the presence of the Doppler Effect, which leads to a shift and scaling the signal spectrums. The proposed approaches are based on the separation of narrow-band channels from the studied signals, using non-linear digital filtering algorithms in each channel, and subsequent optimal (correlation) processing. The accuracy of the proposed methods and the reliability of the determination of time delay are investigated.

Determination of fractional pixel location via an optimal group delay estimation approach

2019 ◽  
Vol 13 (8) ◽  
pp. 1477-1485
Author(s):  
Nili Tian ◽  
Bingo Wing-Kuen Ling ◽  
Changzhi Wu ◽  
Xiangyu Wang ◽  
Kok-Lay Teo
Keyword(s):  
Group Delay ◽  
Delay Estimation ◽  
Pixel Location
Sign in / Sign up

Export Citation Format

Share Document