Fig. 9

Effects of the polarimeter cadence and duty cycle when restoring 1.92 s of narrow band data by means of an MOMFBD. The first column presents a simple average of the 192 measurement cycles, including one modulated intensity a), Stokes Id), and normalized Stokes Vg). The second column illustrates the results of the MOMFBD restoration performed using all the 4 × 192 available intensity measurements. Both a single modulated intensity b) and two of the resulting Stokes parameters e) and h) are shown. The third column gives the outcome of the same MOMFBD algorithm, run on the data set that has a reduced frame rate (44.4 fps) and duty cycle (11.1%), including a single modulated intensity c) and two of the restored Stokes parameters f) and i). The data with 44.4 fps frame rate was obtained by eliminating intermediate intensity measurements from the original FSP data set (acquired at 400 fps and a duty cycle of 98.6%) before demodulation. See the text for extra details.
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