A liquid crystal radar display
Abstract
A liquid crystal display for the MISER experimental radar for the evaluation of millimetric surveillance techniques was developed. The display consists of 2 large area matrix addressed displays and 12 direct drive numeric displays for axes designation and target parameters. The circular display plots data using polar coordinates to produce a PPI type presentation with the square display plotting data using rectangular coordinates to show a magnified area of the PPI display. The axes designators define the position and extent of the enlarged region and the target parameter displays track a selected target. The display unit is a combination of LCD modes; the large area displays are dyed phase change driven by waveform identity addressing, whereas the numeric displays are direct drive twisted nematic.
- Publication:
-
In its RSRE Research Review
- Pub Date:
- 1985
- Bibcode:
- 1985rsre.nasa..150G
- Keywords:
-
- Liquid Crystals;
- Radarscopes;
- Surveillance Radar;
- Millimeter Waves;
- Polar Coordinates;
- Tracking Radar;
- Communications and Radar