Most of Doppler Radar systems are expensive to build and hard to take out for the testing.Therefore a portable and easy building Doppler Radar system has been implemented in recent years.For this thesis two Doppler radar systems which working in different frequency ranges (24 GHz and 2.4 GHz) shall be implemented with evaluating the possibilities regarding proximity sensing based on radar technology. There are two designs including. One is based on an ‘all-in-one’ chip from RF-beam Microwave and the other is based on components from Mini-Circuits.Those Radar kit were developed by using a frequency modulated continuous wave(FMCW) architecture.

The radar works in three different modes:Doppler Time Intensity testing,Range Time Intensity and Synthetic Aperture Radar imaging.The whole system work with Matlab by recording the data.Doppler time intensity (DTI) plots with Doppler spectrum of passing vehicles and range-time intensity(RTI) plots with measuring the moving target versus time will be discussed.Synthetic Aperture Radar(SAR) image of urban terrain is acquired.