Sentence examples for errors of frequency from inspiring English sources
The relative errors of frequency response between 0 and 100 kHz were ≤5.4%.
An alternative expression for the random errors of frequency-band estimates of sound intensity is derived.
The experiment results showed the root mean square (RMS) error of frequency estimation was 0.0917 Hz with minimum error 0.01 Hz, and the SNR can achieve 123.04 dB.
In the identification of random dynamic loads acting on the structure, it is necessary to take into account the effect of measuring error of responses and estimation error of frequency response functions (FRFs).
The mean square errors (MSEs) of frequency estimates are calculated.
Table 4 Results of two methods for voltage flicker Analysis method Error rate of amplitude Error rate of frequency Time consuming (s) Improved HHT combining artificial neural network and mirror extension 2.30 2.64 0.1016 Improved HHT with adaptive waveform matching extension 1.10 2.1.10.0532.
Open image in new window Fig. 5 Improved HHT analysis results of voltage sag signal Table 1 Results of two methods for voltage sag Analysis method Error rate of amplitude Error rate of frequency Time consuming (s) Improved HHT combining artificial neural network and mirror extension 1.23 0.71 0.1037 Improved HHT with adaptive waveform matching extension 2.21 2.21 0.0450.
Furthermore, a proportion of low frequency sequences are likely to be derived from sequencing errors of high frequency TcRs.
The relative errors of each frequency are all less than 3.7%.
The median relative errors of the frequency estimates at the studied basins were less than 20% in most cases.
The modal truncated errors of the frequency responses and their sensitivities will be reduced quickly when the two-modal acceleration methods are adopted.
