Trap avoidance with Weighting & Filtering

This is a high definition video showing the algorithm achieving phase lock using the technique of weighted the modulus data with a 20dB Gaussian filter. This is carried out for the first 1200 cycles. At the same time the far-field plane wave spectrum is filtered with a rectangular low-pass filter. The weighting and filter are then removed almost simultaneously after 1200 cycles. Towards the end of the video we show the aperture distance being varied on-the-fly until we reach the plane of the sub-reflector, which can be seen as a circular blockage at the center. Again we show the axial beam formed by inverse propagation in increments from the second plane to the aperture plane.

Campus d'excel·lència internacional U A B