sarkit.sicd.projection.compute_coa_r_rdot

compute_coa_r_rdot(proj_metadata, image_grid_locations, t_coa, coa_pos_vels)

Compute COA range and range-rate contours given other projection set components.

COA R/Rdot computation is dependent upon Collect Type, Grid Type & IFA used.

Parameters:

proj_metadataMetadataParams

Metadata parameters relevant to projection.

image_grid_locations(…, 2) array_like

N-D array of image coordinates with xrow/ycol in meters in the last dimension.

t_coaarray_like

Center of aperture times in seconds relative to collect start.

coa_pos_velsCoaPosVelsLike

Ensemble of COA sensor positions and velocities

Returns:

r, rdot(…) ndarray

N-D array containing the ranges and range rates relative to the COA positions and velocities. For a monostatic image, r and rdot are relative to the ARP. For a bistatic image, r and rdot are averages relative to the COA APCs.