Merge two raster files with overlap

[Pouya Khalili]

Hi all,

I am trying to merge two raster files which have overlap at some points. One of the raster files has higher resolution and the other has a lower resolution. I want to merge them in a way to keep the higher resolution raster file and fill the rest with the lower resolution raster file. Attached you can find images of my raster files. Merged.jpg is what I expect to get. I would appreciate your help.

Pouya