Concept and Implementation of a PLL-Controlled Interlaced Chirp Sequence Radar for Optimized Range-Doppler Measurements

Journal article
(Original article)


Publication Details

Author(s): Thurn K, Shmakov D, Li G, Max S, Meinecke MM, Vossiek M
Journal: IEEE Transactions on Microwave Theory and Techniques
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Publication year: 2016
Journal issue: 99
ISSN: 0018-9480
Language: English


Abstract


In this paper, we introduce a novel concept for frequency-modulated continuous-wave radar. The approach is based on an interlaced chirp sequence waveform, which is controlled by phase-locked loops (PLLs). The use of PLLs improves frequency chirp linearity and reduces phase noise compared with open-loop voltage-controlled oscillators commonly used to generate the fast chirps. In contrast to basic range-Doppler processing, it enables higher target velocities to be detected unambiguously at the same resolution, which makes it suitable for automotive applications. Separate frequency synthesizers generate the interlaced ramps in the system. An RF switch combines these two signals to suppress transients caused by oscillator overshoot and to avoid incoherencies due to programming times of the PLL ICs. We built a prototype radar system in K-band. The test results are promising and bode well for other applications.



FAU Authors / FAU Editors

Thurn, Karsten
Lehrstuhl für Hochfrequenztechnik
Vossiek, Martin Prof. Dr.-Ing.
Lehrstuhl für Hochfrequenztechnik


External institutions with authors

Symeo GmbH
Valeo Schalter und Sensoren GmbH
Volkswagen AG


How to cite

APA:
Thurn, K., Shmakov, D., Li, G., Max, S., Meinecke, M.-M., & Vossiek, M. (2016). Concept and Implementation of a PLL-Controlled Interlaced Chirp Sequence Radar for Optimized Range-Doppler Measurements. IEEE Transactions on Microwave Theory and Techniques, 99. https://dx.doi.org/10.1109/TMTT.2016.2599875

MLA:
Thurn, Karsten, et al. "Concept and Implementation of a PLL-Controlled Interlaced Chirp Sequence Radar for Optimized Range-Doppler Measurements." IEEE Transactions on Microwave Theory and Techniques 99 (2016).

BibTeX: 

Last updated on 2018-13-11 at 13:53