gps navigation systems for space applications

摘要

A FPGA (5) provides the bidirectional data exchange with a signal processor (7) over a data bus (20). The signal processor (7) performs the bidirectional data exchange over a data bus (25) to with a computer (9). The FPGA (5) receives data from a front-end device (3) over digital serial data channel (14) for processing. The signal-processor (7) generates row measurement data that is further processed in the computer (9). The data generated by the signal-processor include visibility data Doppler-frequency data or navigation-data. An Independent claim is included for a method for using the GPS device.