Patent ID: 8976341
Filing Date: 2015-03-10
Classification: G01S

Abstract:
1. An optoelectric control apparatus for a satellite laser ranging system, comprising: a communication controller for externally receiving optoelectric control data; memory connected to the communication controller and configured to store a round trip distance to a satellite; a laser generation control unit connected to the communication controller and configured to output a laser fire signal; a signal measurement unit configured to receive a laser start time; a real-time conversion unit connected to the signal measurement unit and the communication controller, and configured to convert a predicted laser arrival time into a real time using a value input from the signal measurement unit and a time applied by a clock unit; a Lagrange interpolation processor connected to the real-time conversion unit and the memory, and configured to calculate a time at which laser light fired by a laser transmission unit returns back to a laser reception unit, that is, the laser arrival time, by using an accurate laser start time input from the real-time conversion unit and a round trip time to an object desired to be measured, the round trip time being stored in the memory; and the clock unit connected to a time measurement unit, the real-time conversion unit, a register unit, and a delay unit, and configured to output time information, and wherein the Lagrange interpolation processor comprises: