| Summary: | In recent years, with the rapid development of technology, radar systems have made breakthroughs in hardware, and the size of radars has become smaller, which has made radar systems have achieved some development and achievements in military and civilian use.
The millimeter wave frequency modulation continuous wave (FMCW) radar has a wide frequency modulation bandwidth and can obtain higher range resolution and measurement accuracy. Compared with the pulse system millimeter wave radar, the FMCW radar has a lower peak power requirement and a simple structure. At present, FMCW radar has been widely used in ranging and speed measurement, drone navigation, blind spot monitoring and other fields.
In this article, Infineon position2go kits 24 GHz radar is used to collect raw data including people walking around motion and detection of the difference of human and vehicles. The raw data are imported to MATLAB and 2D-FFT method is used to do signal processing for getting range and doppler information. Comparing the detected results with the real situation to rest the performance of the Position2go kit and the rationality of the signal processing algorithm. The results prove that the millimeter FMCW radar has excellent range and speed detection capabilities, and 2D-FFT method is a reasonable algorithm to get range and doppler information.
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