05420592 is referenced by 238 patents and cites 4 patents.

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

Title
Separated GPS sensor and processing system for remote GPS sensing and centralized ground station processing for remote mobile position and velocity determinations
Application Number
8/42551
Publication Number
5420592
Application Date
April 5, 1993
Publication Date
May 30, 1995
Inventor
Russell K Johnson
Half Moon Bay
CA, US
Agent
Thomas E Schatzel
Assignee
Radix Technologies
CA, US
IPC
G01S 5/02
H04B 7/185
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