Most RSM-based damage detection methods are frequency-based, limiting their application to small structures and symmetrical damage.
The harmonic current detection method is frequency adaptive and designed to extract the load harmonic current with higher amplitude.
The key of our method is frequency selection with two precise pinholes which treated as band-pass spatial filters.
Second, the method is frequency independent, in line with a rigorous mathematical definition of synchronization [22], [23].
The first method was frequency-dependent correction prediction, in which we used a digital causal filter to correct the site amplification for the observed waveform in the time domain.
Moreover, some relevant frequency measurement methods are introduced, a frequency measurement method based on dynamic output characteristics has been proposed for the purpose of investigating the modulated output signal of resonant vibratory gyroscopes.
Patient characteristics of the study population (n=122) were analysed using descriptive statistical methods, that is, frequency tables, median, and range.
Pancreatic cancer cases (n = 532) diagnosed in 1995 1999 were identified using rapid case ascertainment methods and were frequency matched to population-based controls (n = 1,701) in the San Francisco Bay Area.
When these frequency control methods are unable to stop the frequency decline, under-frequency load shedding (UFLS) may operate to protect the system from collapsing.
One of the most prominent methods is the frequency threshold excision (FTE), in which the excess interference is clipped from the signal.
Three basic network dimming methods are derived for coverage, frequency, and service dimming.
