Measurement of wideband fm-cw-radar characteristics during approach of aircraft

Author

Küllmer, Alexander ; Spieker, Harald ; Schüür, Jens ; Enders, Achim

Author_Institution

Inst. for Electromagn. Compatibility, Tech. Univ. Braunschweig, Braunschweig, Germany

fYear

2012

fDate

21-23 May 2012

Firstpage

1

Lastpage

5

Abstract

In this paper a method to measure and characterize wideband fm-cw-radars like the radio altimeter of aircraft is presented. The limitations of frequency domain measuring systems will be shown by comparing the results from frequency and time domain based measurements. The need of additional measuring equipment like a down converter and amplifier to improve the signal quality in time domain is described as well as the used software tools to calculate the spectrum. Finally it is described how the frequency ramp speed and shape of the frequency modulated signal can be determined in addition to the already calculated occupied bandwidth and spectral power density.

Keywords

CW radar; FM radar; airborne radar; radar altimetry; radar signal processing; time-frequency analysis; ultra wideband radar; frequency domain measuring system; frequency modulated signal; frequency ramp; radar aircraft; radar measurement; radar signal quality; software tool; spectral power density; time domain analysis; wideband FMCW radar; Frequency modulation; Radar; Time domain analysis; Time frequency analysis; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace EMC, 2012 Proceedings ESA Workshop on

Conference_Location

Venice

Print_ISBN

978-1-4673-0302-6

Type

conf

Filename

6232568