Title: Parameter Estimation of Wide-Band FM Signals From Knowledge About Their Sinusoidal Modulation
Abstract: Estimation of the parameters of frequency-modulated (FM) signals presents a significant challenge when the peak frequency deviation is large in comparison with the modulation frequency. In the frequency domain, such signals contain many significant side-bands and so are considered to be wide-band FM signals. Standards are being developed for the testing of frequency and rate of change of frequency (ROCOF) measuring instruments used in electrical power transmission and distribution systems. To verify the measuring and operating ranges of these instruments under dynamic conditions, injection of wide-band FM signals with carrier frequency equal to the power system nominal frequency (50 Hz or 60 Hz) is being envisaged. A refinement is proposed here to one method of FM signal parameter estimation in the time domain which uses prior knowledge about the modulation frequency. This refinement overcomes convergence difficulties when the FM signal is wide-band by finding an improved initial estimate for the modulation phase.
Publication Year: 2023
Publication Date: 2023-01-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot