• English
  • Deutsch
  • Log In
    or
  • Research Outputs
  • Projects
  • Researchers
  • Institutes
  • Statistics
Repository logo
Fraunhofer-Gesellschaft
  1. Home
  2. Fraunhofer-Gesellschaft
  3. Konferenzschrift
  4. Noise Figure Verification and Optimization of an Undersampled Software Defined Radio Based Radar Receiver for a Phased Array Radar System
 
  • Details
  • Full
Options
2018
  • Konferenzbeitrag

Titel

Noise Figure Verification and Optimization of an Undersampled Software Defined Radio Based Radar Receiver for a Phased Array Radar System

Abstract
This paper aims to study practical applicable measurement and optimization methods of the noise figure of an undersampled radar receiver including the influence of aliasing caused by the analog-digital-conversion and the followed digital signal processing. For this, a measurement method is implemented that regards the convolution of noise components from adjacent frequency bands into the useful band which occurs through a weak band-limiting analog filter. A comparison with the common Y-Factor-Method noise figure measurement method for only the analog front-end is made and it is shown why this method is not suitable for undersampled systems. The results have shown that the weak slope steepness of the used analog bandpass filter leads to a degradation of the noise figure in the upper half of the receiving frequency band that could not be determined by common measurement methods.
Author(s)
Staufenbiel, B.
Lambert, O.
Krist, M.
Hauptwerk
48th European Microwave Conference, EuMC 2018. Proceedings
Konferenz
European Microwave Conference (EuMC) 2018
Thumbnail Image
DOI
10.23919/EuMC.2018.8541544
Language
Englisch
google-scholar
FHR
  • Cookie settings
  • Imprint
  • Privacy policy
  • Api
  • Send Feedback
© 2022