IN-CAR MULTI-FUNCTION MICROWAVE DEVICE SPEED MEASUREMENTS RESPECT TO THE ROAD SURFACE

Speed measurement is useful for vehicle safety, high speed car performance improvements for better traction control, autonomous vehicles collision avoidance, autonomous navigation. Therefore, it should be precise to have better results for these applications. This paper explores the implementation of a vehicle-mounted Doppler radar for true speed-over-ground (SOG) estimation. Mainly we will use this application for limited series sport vehicles, to make those vehicles better in track performance. This approach provides a resilient data source resistant to wheel slip and independent of satellite reception. The core of this study focuses on Doppler signal spectrum estimation. One approach is by calculating the Doppler power density spectrum and then extracting the dominant frequency component, that is, the peak of the spectrum. Another technique, based on a correlation analysis, compares the measured Doppler spectrum with a set of pre-estimated theoretical spectral models in order to find the best fit. This research validates the efficacy of Doppler radar as a superior alternative for speed measurement, ensuring the high-fidelity data required for robust traction control for high-speed vehicles.