Method for clock calibration in a position determination system

摘要: Timing signals are transmitted from reference transmitters through antenna/receivers (antenna preamplifier nodes) to collector nodes (C-Nodes) and a central computer. The times of arrival the at various C-Nodes measured by C-Nodes, relative each C-Node's clock. time C-Node must be based upon common useful for positioning. Therefore, computer determines offsets clocks selected then calibrated against one another used adjust so that all time-of-arrivals same can position determination collection effectively synchronized.