Dear Professor Kim:
I write you in regards to manuscript # GRSL-01134-2020 entitled "RFDOA-Net: Residual CNN Based DOA Estimation of RF Signal for UAV Surveillance System" which you submitted to the Geoscience and Remote Sensing Letters.
In light of the appropriateness of your manuscript for our journal, your manuscript has been denied publication in the Geoscience and Remote Sensing Letters.
It is not clear that this is the adequate venue for your manuscript. As stated, IEEE Geoscience and Remote Sensing Letters papers should relate to the theory, concepts, and techniques of science and engineering as applied to sensing the earth, oceans, atmosphere, and space, and the processing, interpretation, and dissemination of this information. Your list of references is a strong indication that your manuscript targets the Signal Processing community.