  Ghost imaging LiDAR via sparsity constraints using push-broom scanning is
proposed. It can image the stationary target scene continuously along the
scanning direction by taking advantage of the relative movement between the
platform and the target scene. Compared to conventional ghost imaging LiDAR
that requires multiple speckle patterns staring the target, ghost imaging LiDAR
via sparsity constraints using push-broom scanning not only simplifies the
imaging system, but also reduces the sampling number. Numerical simulations and
experiments have demonstrated its efficiency.
