Title :
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
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;
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
DOI :
10.1109/SIBIRCON.2008.4602570
