NASA’s laser retroreflector arrays aboard GPS III satellites enhance positioning accuracy for Earth navigation and scientific measurements by reflecting laser signals back to ground stations.

Abstract: This paper developed a photonically actuated ultrawideband, two-dimensional transmit array using a Fourier optical lens as a beamformer. Data encoding was developed, in which custom IF ...

Abstract: This paper presents an exponential analysis technique for synthesizing a sparse non-uniform linear array using equidistant samples of the array factor of a ...