A high precision 24 GHz FMCW-radar based on a fractional-N ramp-PLL

Author

Musch, T.

Author_Institution

Inst. fur Hochfrequenztech., Ruhr-Univ., Bochum, Germany

fYear

2002

fDate

16-21 June 2002

Firstpage

204

Lastpage

205

Abstract

A 24 GHz FMCW-radar system is presented using a fractional-N phase locked loop ramp generator. This fractional-N ramp generator achieves relative ramp nonlinearities below 10/sup -8/. Among other applications, linear frequency ramps are important tools in high precision FMCW-radar systems. Highly linear frequency ramps make post-measurement error correction feasible. Other important aspects of the high performance FMCW-radar system are the design of the microwave circuit and the digital signal processing of the IF signals.

Keywords

CW radar; FM radar; error correction; microwave circuits; phase locked loops; radar signal processing; ramp generators; 24 GHz; FMCW-radar; IF digital signal processing; fractional-N PLL ramp generator; fractional-N phase locked loop ramp generator; linear frequency ramps; microwave circuit design; post measurement error correction; relative ramp nonlinearities; 1f noise; Frequency conversion; Logic; Measurement errors; Microwave filters; Phase locked loops; Signal design; Signal to noise ratio; Transfer functions; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on

Conference_Location

Ottawa, Ontario, Canada

Print_ISBN

0-7803-7242-5

Type

conf

DOI

10.1109/CPEM.2002.1034791

Filename

1034791