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The MMW Group at the University of St Andrews has constructed a fast scanning, high resolution 94GHz FMCW radar named SAFIRE. We present SAFIRE imagery and outline the practical limitations of the radar in terms of the trade offs between scanning speeds, FMCW sweep times, range resolution, data sampling, processing and display requirements.
Since the first report on our submillimeter-wave imaging system with radar ranging capabilities, several advances have been made in system performance. Range resolution as well as cross-range resolution are significantly improved, and image acquisition time has been reduced from over 5 minutes to under 1 minute. Here we report on performance improvements to specific key components and software that...
There is a growing interest in the frequency modulated continuous wave (FMCW) SAR for its small cubage, light weight, cost-effective and high resolution. Imaging sensors based on pulsed radar technology are generally too heavy or too expensive. Frequency modulated continuous wave (FMCW) radars, however are usually more compact and less expensive. An FMCW synthetic aperture radar (SAR) combines the...
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