tween the system and PC, GPS, compass is realized by two chips of universal asynchronous receiver/transmitter TL16C754; the data acquisition pleted by one Analog-to-Digital converter; original data upload is realized by DP83848C. The ponent and function of every part is presented in detail in this thesis.РBesides, the FPGA software is plished by Verilog HDL language including data acquisition, synchronous signal generation, system instruction analysis, GPS pass data analysis. What is more, the time delay estimation used sliding correlation is processed by FPGA.РThrough laboratory tests and the outfield experiments, digital processing platform goes well, meets the demand of the positioning system, and achieves the expected goals.РKey words: position system; FPGA; digital processing platform