The estimated baseline for one replicate of the spectra data shown in Figure 5.5

H. The thin line stands for the spectrum and the thick line stands for the estimated

removing the estimated baseline from the raw spectrum, a peak

is shown in Figure 5.12. An intensity within such a peak

is treated as a potential peak or signal if it is positive, i.e., ݌௜൐

ver, not every potential peak is a true peak. Among them, some

false peaks. For instance, the artifacts with very low intensities

Figure 5.12 may not be the true peaks. A true peak must have a

nt height compared with its neighbour artifacts.

he extracted peak spectrum for one replicate of the spectra data shown in Figure

WH.

e smoothing of the extracted peak spectrum

spectrum shown in Figure 5.12 is still glitching. This will cause

m of true signal discovery. Therefore, a moving average process

yed in BWH. The use of a moving average process helps remove

hes along the spectrum. Figure 5.13 shows the moving average

Figure 5.12. It can be seen that each peak has a smoothing curve