US 12,216,202 B2
Optimized antenna scan strategy for windshear detection
Venkata A. Sishtla, Cedar Rapids, IA (US); and Jacob G. Teague, West Melbourne, FL (US)
Assigned to Rockwell Collins, Inc., Cedar Rapids, IA (US)
Filed by Rockwell Collins, Inc., Cedar Rapids, IA (US)
Filed on Jan. 18, 2022, as Appl. No. 17/577,815.
Prior Publication US 2023/0228872 A1, Jul. 20, 2023
Int. Cl. G01S 13/95 (2006.01); H01Q 3/08 (2006.01)
CPC G01S 13/953 (2013.01) [H01Q 3/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A computer apparatus comprising:
at least one processor in data communication with at least one antenna and a memory storing processor executable code for configuring the at least one processor to:
perform two or more horizontal scans at constant tilt angles;
determine signal-to-noise ratios of a return signal of each of the horizontal scans;
determine the first tilt angle and second tilt angle based on the signal-to-noise ratios by determining corresponding sets of signal-to-noise ratios and signal-to-clutter ratios, and selecting the first tilt angle and second tilt angle based on a predefined threshold of signal-to-noise ratio and signal-to-clutter ratio;
begin a horizontal scan with the antenna at a first tilt angle corresponding to a first peripheral view;
adjust the antenna to a second tilt angle during an intermediate segment of the scan corresponding to a center view; and
adjust the antenna to the first tilt angle during an end segment of the scan corresponding to a second peripheral view,
wherein the first tilt angle is higher than the second tilt angle.