Method for measuring the precise position of the energy centre of an image spot of a luminous object on a photosensor

摘要

The sensor is a charge transfer matrix and the measurement is made by barycentric calculation. The steps of the method are as follows: …??Centring the measurement field (30) on the estimated position of the luminous object (PI(1)); selecting a first group of NS brightest pixels (31); selecting from these NS the NA pixels clumped with the pixel of maximum level (37); finally performing a barycentric calculation on just the NA clumped pixels (IE) of the measurement field. …??Application to stellar observation in particular in order to manoeuvre a manoeuvring satellite. …IMAGE…