Channel

Channel Tab

The channel panel is designed to find probable peak positions. The algorithm uses a window which is shifted along the spectrum to check for the highest value. The window determines the window size of each data point (right and left), which is used to characterize it as a peak in this region. Increasing this value leads to a rejection of possible peaks if they are proximate (inside the same window) to higher peaks.
For discontinous spectra (with decreasing resolution) a second window size parameter (increase to) can be determined. The window will then become bigger in a linear sense during the scan procedure.

The threshold parameter determines the minimum signal intensity the peak value has to exceed (mean signal intensity of the window). The smoother a peak shape appears the higher the window mean value will be, i.e. increasing the treshold requires steeper peak margins.

The fields for StartMass, StopMass and Height determine the left and right margins and the minimum absolute peak height, respectively.

The set marks at channel positions button increases the peak positions in the main view for illustrational reasons.