Fig.8 Model image based on 21 Apr.
2002. FOV is 10 solar radii.
Fig.9 Dirty image by the array
configuration of the Nobeyama
Radioheliograph.
Fig.10 Restored
image with contour trim of
0.6 and loop gain of 0.4.
⑤Restoration of CME
images
By using a model image (Fig.8) based on
a CME on 21 Apr. 2002 observed by LASCO, the availability of steer-type
algorithm to FASR’s image in low frequency range is tested.
The steer-type algorithm can perform better than the conventional
CLEAN algorithm, however, further studies about the restoration
of such images are necessary.