Title :
A High Precision 24 GHz FMCW-Radar using a Phase-Slope Signal Processing Algorithm
Author_Institution :
Ruhr-Universitÿt Bochum, Institut fÿr Hochfrequenztechnik, UniversitÿatsstraÃ\x9fe 150, D-44780 Bochum, Germany, email: tom@hf.ruhr-uni-bochum.de
Abstract :
A 24 GHz FMCW-radar system is presented using a phase-slope algorithm for increased range determination accuracy. Additionally a fractional-N ramp generator provides a highly linear frequency ramp with nonlinearities below 10¿8. These highly linear frequency ramps make post measurement error correction feasible. Especially analysing the phase-slope of the i.f. signal results in an increased measurement precision compared to the standard spectral centre algo-rithm. Another important aspect of the high performance FMCW-radar system is the design of the microwave circuit.
Keywords :
Frequency conversion; Frequency measurement; Linearity; Measurement errors; Microwave circuits; Phase measurement; Radar measurements; Signal generators; Signal processing algorithms; Voltage-controlled oscillators;
Conference_Titel :
Microwave Conference, 2002. 32nd European
Conference_Location :
Milan, Italy
DOI :
10.1109/EUMA.2002.339442
