i have hydrogen plasma spectrum and i know it has continuum. i can subtract it by fitting constant or polynomial function. but i do not know which one give me better result.
i use Origin software
Several options are available to remove the spectral lines from the spectrum in order to obtain just the continuum. You can either use a low pass filter or a median filter. In Origin you can open "Analysis- Signal Processing- Smooth/ FFT filters " and play with the "Points of Window" value. Check the "Auto Preview" box and adjust PoW until the filtered spectrum is satisfactory. Now you can subtract it.
Dear Shurik Yatom
i did your suggested way but in origin i found another way: Analysis-peak and baseline-peak analysis. we can fit polynomial equation on spectrum or fit constant baseline. i have series problem to choose a valid method for subtract continuum.
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