A feedforward tracking filter. Part 2: Noise performance and applications

Author

Lee, K.K. ; Le-Ngoc, T. ; Bhargava, V.K.

Author_Institution

Concordia University, Dept of Electrical Engineering, Montreal, Canada

Volume

57

Issue

6

fYear

1987

Firstpage

272

Lastpage

280

Abstract

The performance of a Feedforward Tracking Filter (FTF) in the presence of white additive Gaussian noise is analysed. By studying the spectral properties and input-output signal-to-noise ratio (SNR), it is observed that the output of the nonlinear bandpass model of the FTF contains a mixture of signal and noise cross-modulation products. Due to the nonlinear effect, the FTF achieves tracking abilities at the expense of SNR. In addition, the probability density function of the phase error is evaluated. Finally, experimental results to verify the analysis and an application of the FTF to a fast carrier recovery system are presented.

Keywords

filtering and prediction theory; modulation; probability; random noise; spectral analysis; tracking; white noise; SNR; cross-modulation products; fast carrier recovery system; feedforward tracking filter; input-output signal-to-noise ratio; nonlinear bandpass model; nonlinear effect; phase error; probability density function; spectral properties; tracking abilities; white additive Gaussian noise;

fLanguage

English

Journal_Title

Electronic and Radio Engineers, Journal of the Institution of

Publisher

iet

ISSN

0267-1689

Type

jour

DOI

10.1049/jiere.1987.0095

Filename

5261609