Patent ID: 6856380
Filing Date: 2005-02-15
Classification: G01S

Abstract:
1. An aerial vehicle laser radar photographic method using tangential and geometric speed error correlation algorithms for two-dimensional visual reproduction of laser images when N>1 comprising the steps of: receiving photographic laser radar signal data; scanning at least one complete line; calculating an LD value as DIST*Vr/Vo, where DIST describes a line distance between each completed scanned line, Vr describes an actual aerial speed at the time of photographing and Vo describes an initial preset speed of an aerial vehicle immediately prior to photographing; calculating a Dahead value as Dahead+LD, where Dahead describes a balance of a moving distance of an aerial vehicle since the last outputted data, wherein the balance can be a positive or a negative number with an initial value set at zero, and LD describes a distance between outputted vision lines; and calculating an Rd value as Dahead/RESL, where RESL describes a system rated output line distance and Rd describes a ratio of the Dahead to the system output line distance; and outputting scanned line(s) as vision line data and replacing the laser radar's preset rated output line data with proximate scan line data after resetting a Dahead value to zero and if said Rd value calculated is greater than 2 and a moving distance of an aerial vehicle has exceeded two lines distance of the laser radar system's preset rated output lines; and thereby reproducing two-dimensional visual laser radar images for N>1 by restricting geometric distortion errors to within one system rated output line distance, where N describes a quantity of scanned vison data outputted for scanned vision lines.