A method of manufacturing a semiconductor structure is provided. In one example, range-rate measurements are obtained at the remote receiver with respect to a plurality of satellites. The model creation part creates a foreground model of the foreground area and a background model of the background area which are modified, based on first pixel values of a predetermined line segment where the modification is instructed and second pixel values of the foreground area and the background area which are divided. The output-stage circuit is used for providing the feedback voltage.