Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Two linear interference patterns with preferred directions differing by 60° (grey arrows, left and middle) combine to produce a triangular grid (right, grid scale = G). The linear interference patterns are the thresholded sum of a velocity-controlled oscillator (VCO) and a baseline oscillation during constant velocity runs from the origin (bottom left), see Figure 2 for details. These patterns are multiplied to produce the grid pattern (right). The colorbar shows amplitude.
