2022 Technical Papers

Further Exploration of the Holographic PNF Filter

Author: Scott T. McBride
Publication: AMTA 2022
Copyright Owner: NSI-MI Technologies

Abstract — A 2021 AMTA paper introduced a 3D holographic filtering algorithm optimized for the planar near-field (PNF) geometry. This filter has been shown to have an excellent combination of AUT-signal preservation, stray-signal rejection, and processing speed. It requires only the sampling of a conventional PNF measurement, along with a specified 3D boundary surrounding all the AUT’s possible radiating sources.

The 2021 paper suggested some topics for further investigation, specifically the optimal Z spacing through the 3D hologram and the X- and Y-widths of the blanking window’s tapered extension, and those are investigated here. This paper also explores the combination of filtering and probe correction, since the measured convolution of probe and AUT spatial distributions will be wider than that of the AUT by itself. Finally, filter effectiveness is evaluated for different stray-signal locations with respect to the AUT volume.

View The Paper

Atlanta

1125 Satellite Blvd. NW,
Ste. 100
Suwanee, GA 30024 USA

+1 678 475 8300
+1 678 542 2601

Los Angeles

19730 Magellan Dr.
Torrance, CA 90502 USA

+1 310 525 7000
+1 310 525 7100

NSI-MI UK

C/O AMETEK LAND,
Stubley Lane,
Dronfield, S18 1DJ UK

+44 1246 581500
  www.nsi-mi.co.uk

SMALLSAT

Mountain View, CA Finding your local time... Event has started! 2023.smallsatshow.com
This site is using cookies for analytical purposes and to provide a better user experience. Read our Privacy Policy for more information.