Application of kalman filters as a tool for phase and frequency demodulation of IQ signals

Author

Schadt, Frank ; Mohr, Friedemann ; Holzer, Markus

Author_Institution

Optoelectron.&Laser Metrol. Lab., Pforzheim Univ., Pforzheim

fYear

2008

fDate

21-25 July 2008

Firstpage

421

Lastpage

424

Abstract

Frequency or phase modulated electrical signals arise in multiple applications in communication systems as well as in measurement setups such as interferometry / vibrometry, velocimetry etc. common demodulation techniques are often based on analog techniques (e.g. a PLL in the RF band) or - after mixing into the base band and generating IQ signals - on digital signal processing algorithms.

Keywords

Kalman filters; demodulation; frequency modulation; matrix algebra; phase modulation; DSP based algorithms; IQ baseband signals; Kalman filters application; analog techniques; angular frequency; arctan derivation; communication systems; differentiate-and-cross-multiply approach; digital signal processing algorithms; frequency demodulation; frequency modulated electrical signals; interferometry-vibrometry; optimal estimator; phase demodulation; phase modulated electrical signals; velocimetry; Demodulation; Electric variables measurement; Frequency measurement; Interferometry; Phase locked loops; Phase measurement; Phase modulation; RF signals; Radio frequency; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Technologies in Electrical and Electronics Engineering, 2008. SIBIRCON 2008. IEEE Region 8 International Conference on

Conference_Location

Novosibirsk

Print_ISBN

978-1-4244-2133-6

Electronic_ISBN

978-1-4244-2134-3

Type

conf

DOI

10.1109/SIBIRCON.2008.4602570

Filename

4602570