ATD-GPS Satellite Positioning Navigator and its applications in the monitoring system
Hong Gang · 2002
HuaCheng Nav&Com Systems Corp. is the main company which develops GPS products in China. With a long-period of experience and technology in R&D of DSP (digital signal processing) products, the company developed the ATD-GPS Satellite Positioning Navigator from September 1992 and the ATD-GPS mobile target management system from 1994. In March, April 1993, the ATD-GPS system was tested in Florida and Los Angeles.