Title :
Narrowband Gaussian noise: variance of the number of zero crossings
Author_Institution :
US Office of Naval Research, London, UK
Abstract :
An expression, valid for all T, is found for the variance of the number of zero crossings during a time T for a narrowband Gaussian noise waveform with a symmetric spectrum. It bears an interesting relationship to the variance of 1/¿ times the waveform´s change in phase during this time.
Keywords :
frequency measurement; frequency modulation; random noise; FM demodulation; frequency measurement; narrowband Gaussian noise waveform; symmetric spectrum; zero crossings;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780051
