8/22/2023 0 Comments Mestrenova apodization![]() ![]() ![]() Another way to improve the quality of the transient is to wait to collect data until ions have settled into stable oscillatory motion within the trap. Thus, apodization improves the resolution of the resulting mass spectrum. The software allows “apodization”, the removal of the front and back section of the transient signal from consideration in the FT calculation. This presents a problem for the Fourier transformation, as it averages the oscillatory signal across the length of the time-domain measurement. Toward the end, subtle ion collisions have added up to cause noticeable dephasing. Apodization in mass spectrometry ĭuring oscillation within an Orbitrap, ion transient signal may not be stable until the ions settle into their oscillations. An example of apodization is the use of the Hann window in the fast Fourier transform analyzer to smooth the discontinuities at the beginning and end of the sampled time record.Īn apodizing filter can be used in digital audio processing instead of the more common brick-wall filters, in order to reduce the pre- and post- ringing that the latter introduces. The term apodization is used frequently in publications on Fourier-transform infrared (FTIR) signal processing. Further information: Window function Apodization in signal processing ![]()
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