Title :
A microprocessor controlled microwave ranging system for high accuracy industrial applications
Author :
Maskell, D.L. ; Woods, G.S. ; Murray, J.-M.
Author_Institution :
Dept. of Electr. & Comput. Eng., James Cook Univ. of North Queensland, Townsville, Qld., Australia
Abstract :
A microwave ranging system which employs a composite FMCW/CW measurement technique is described. An FMCW radar is used to find the approximate range of the target. The FMCW radar returns are processed in the spatial domain using the Fast Fourier Transform (FFT). In order to provide higher resolution, without an excessive increase in processing time, a modified “picket fence” algorithm is employed. A comparison of experimental results obtained from alternative resolution enhancement techniques is also included. A precision CW distance measurement is able to be resolved on the basis of the FMCW result to provide an accurate sub-millimetre range solution. A microcontroller based X-band prototype system suitable for industrial applications is described
Keywords :
CW radar; FM radar; distance measurement; fast Fourier transforms; microcomputer applications; microwave detectors; microwave measurement; CW distance measurement; FM continuous wave measurement; FMCW radar; Fast Fourier Transform; alternative resolution; composite FMCW/CW measurement; experimental results; high accuracy industrial applications; microcontroller based X-band prototype; microprocessor controlled microwave ranging; picket fence; spatial domain; submillimetre range solution; Control systems; Distance measurement; Fast Fourier transforms; Measurement techniques; Microcontrollers; Microprocessors; Microwave theory and techniques; Prototypes; Radar; Spatial resolution;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE
Conference_Location :
Hamamatsu
Print_ISBN :
0-7803-1880-3
DOI :
10.1109/IMTC.1994.351824
