
TY  - JOUR
A1  - Bracewell, RN 
T1  - Electrical Scanning and Low Pass Filtering in Radio Astronomy
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1962
VL  - 15
IS  - 3
SP  - 447
EP  - 449
KW  - 
UR  - https://doi.org/10.1071/PH620447 
N2  - In previous studies of aerial smoothing in radio astronomy it has been supposed that the scanning is produced by mechanically moving the aerial. However, the introduetion of a phase gradient across the aperture permits electrical scanning, and the theory of this is an interesting aspect of the general aerial smoothing problem. 
ER  -

