Patent ID: 9660322
Date: 2017-05-23
CPC Classifications: H01Q

Claim:
1. A method for using a coarse positioning mechanism for precision pointing of a payload toward a target, the method comprising: determining, using a controller comprising one or more computer processors, target information that includes a location of the target; determining, via a position controller of the controller, positioning information that is used in determining how to adjust the coarse positioning mechanism such that the payload points toward the target after the coarse positioning mechanism is adjusted; determining, using a compensation component of the controller, a position command to adjust the coarse positioning mechanism that is based on the positioning information and compensates for at least one of a nonlinear error or a cross-coupling error, wherein determining a position command to adjust the coarse positioning mechanism comprises: applying the position command to a drive unit coupled with the controller to adjust the coarse positioning mechanism such that after the coarse positioning mechanism is adjusted, the payload points toward the target.