It is known that the rigorous definition of an energetic spectrum is a Fourier spectrum
of an autocorrelation function (Rytov et al.
Our proposed feature extraction method is based on Fourier transform of retinal images and a special partitioning of Fourier spectrum.
Fourier spectrum and phase angle are defined as follows:
For using amplitude information, the Fourier spectrum of retinal image is generated.
In the second step of feature extraction, a new partitioning is introduced, based on dividing the Fourier spectrum to several half circle with the same center around the central of spectrum that include segments with same area and same degree arc.
Visualization of a trajectory and dependence of a velocity component of a particle on time, and its Fourier spectrum are used in the investigation as tools for analysis.
Fourier spectrum of a signal gives the contributions from the dominant harmonics present in the signal.
With these new research was possible to know the influence of the changed parameters to the dampers characteristics and to move some of the frequencies in to the attenuation frequency bandwidth of the Fourier spectrum.
The assisted research of the VGDDEC and of the influences of MRD parameters opens the way to optimize in the future the vibration Fourier spectrum in all resonance frequencies.
Identify frequency and power with Fourier Spectrum
The method contents in the experimental research of the frequency Fourier spectrum of the arm type didactical robot in the different movement cases.
Key words: assisted research, Fourier spectrum, virtual LabVIEW instrumentation, dynamic behavior, industrial robot.