Title :
Radiometry for landmine detection
Author :
Wilkinson, Andrew J. ; Inggs, Mike R.
Author_Institution :
Dept. of Electr. Eng., Cape Town Univ., Rondebosch, South Africa
Abstract :
The development of new sensors for landmine detection is an active area of research. Microwave radiometry is a field of remote sensing concerned with the measurement of thermally emitted radiation in the microwave band. This paper describes the design, testing and performance of an experimental microwave radiometric measurement system for use in landmine detection. The aim of our research is to set up an experiment to assess the potential of microwave radiometry for landmine detection and also to establish the relative merits of various frequency bands. We have designed and constructed a sensitive radiometric receiver consisting of a switchable front end (i.e., 10 GHz, 35 GHz or 90 GHz), followed by an IF amplifier chain of bandwidth 1 GHz, and power detector. The radiometer design, hardware and performance are described
Keywords :
buried object detection; heat radiation; microwave amplifiers; microwave detectors; microwave receivers; millimetre wave amplifiers; millimetre wave detectors; millimetre wave receivers; radar detection; radiometry; remote sensing; 1 GHz; 10 GHz; 35 GHz; 90 GHz; IF amplifier chain; landmine detection; microwave radiometry; passive radar; performance; power detector; receiver; remote sensing; sensors; switchable front end; testing; thermally emitted radiation measurement; Bandwidth; Frequency; Landmine detection; Microwave bands; Microwave measurements; Microwave radiometry; Power amplifiers; Radiofrequency amplifiers; Remote sensing; System testing;
Conference_Titel :
Communications and Signal Processing, 1998. COMSIG '98. Proceedings of the 1998 South African Symposium on
Conference_Location :
Rondebosch
Print_ISBN :
0-7803-5054-5
DOI :
10.1109/COMSIG.1998.737010
