PHASE SHIFT INFLUENCE RESEARCH OF THE REFERENCE OSCILLATOR SIGNAL ON THE OUTPUT SIGNAL IN HOMODYNE DEMODULATION SCHEME

• Published in: Nauchno-tekhnicheskiĭ vestnik informat͡s︡ionnykh tekhnologiĭ, mekhaniki i optiki Vol. 15; no. 4; p. 608
• Main Authors: Volkov, A V, Oskolkova, E S, Plotnikov, M Y, Mekhrengin, M V, Shuklin, P A
• Format: Journal Article
• Language: Russian
• Published: Saint Petersburg St. Petersburg National Research University of Information Technologies, Mechanics and Optics 01.07.2015
• Subjects: Accuracy; Amplitudes; Bandpass filters; Carrier frequencies; Compensation; Computer simulation; Delay; Demodulation; Distortion; Interference; Jet lag; Low pass filters; Mathematical models; Parameter estimation; Phase modulation; Phase shift; Signal processing; Signal to noise ratio; Test systems

Subject of Research. Important feature of homodyne demodulation method based on the arctangent function approach is the phase shift between the reference oscillator signal and the interference signal. This phenomenon is caused by propagation delays of impulses in the optical interferometric sensor s...