Separated GPS sensor and processing system for remote GPS sensing and centralized ground station processing for remote mobile position and velocity determinations

摘要: A rawinsonde system embodiment of the present invention includes a digital GPS snapshot buffer and serial communications controller for transmitting message frames formed combination data from digitized hardwired meteorological input humidity-temperature-pressure instrument. The are telemetered at relatively low rate over radio band to ground station. Substantially all conventional signal processing is performed by station, including carrier recovery, PRN code locking, pseudo-range extraction, ephemeris almanac collection, satellite selection, navigation solution calculation differential corrections. Ground further Kalman filter wind velocity calculation.