Title :
Surface Roughness Measurements by using Low-Resolution FM-CW Radar Altimeters
Author :
Axelsson, Sune R.J.
Author_Institution :
Missile and Electronics Sector, Saab-Scania AB, S-581 88 Linköping, Sweden
Abstract :
When a radar altimeter is used over a rough ground surface, a noise component is added to the output signal. The mean deviation of the noise mainly depends on the range spread of the reflectors located within the antenna beam. The close relationship between noise and range spread can be used to estimate the height of surface roughnesses by low-resolution radar altimetry. Experimental results compare favorably with theoretical predictions.
Keywords :
Additive noise; Altimetry; Antenna measurements; Frequency modulation; Gaussian noise; Radar antennas; Radar measurements; Reflector antennas; Rough surfaces; Surface roughness;
Conference_Titel :
Microwave Conference, 1976. 6th European
Conference_Location :
Rome, Italy
DOI :
10.1109/EUMA.1976.332304
