Contact: anton [dot] cervin [at] control [dot] lth [dot] se
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Radar technology has developed a lot during the last years, which has resulted in smaller and cheaper radar modules. The new technology has led to many new areas of use, including for example detection sensors in the automotive industry. There are several types of radars, one common type being the frequency-modulated continuous-wave (FMCW) radar. The FMCW radar uses a frequency-modulated signal to sweep a frequency range. To do this, a voltage-controlled oscillator (VCO) that converts a control voltage to a sinusoidal signal can be used. Due to the VCO's temperature dependency and nonlinear mapping from voltage to frequency, it requires a closed-loop control system to work in a broad temperature range and to eliminate nonlinearities that have a negative effect on the radar's performance. This control system is often implemented with a phase-locked loop (PLL), which is an analogue control method typically implemented in an application-specific integrated circuit (ASIC). The objective of this master's thesis is to investigate the possibility to digitally control a VCO without using a PLL. The reason for this is to lower component costs by only using a microcontroller unit and no additional ASICs.
Anton Cervin, Dept. of Automatic Control, LTH
Lars Andersson, Axis Communications
Andreas Glatz, Axis Communications
Kristian Soltesz, Dept. of Automatic Control, LTH
The seminar will be held in Zoom: https://lu-se.zoom.us/j/62773964579
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