Abstract:Measurment receivers are an essential part of research satellite navigation system, but expensive and unchangeable of built-in algorithms limit its use and development. The architecture of measurement receivers are overviewed, analyzed the BD970 OEM board with ARM7 architecture card of computer and its external communication mechanism, designed principle prototype of measurement receiver based on the card based on ARM7 architecture computer which can obtain and decode real-time data from BD970 OEM board. For its correctness and reliability of data, will BD970 OEM board with Trimble refused NetR9 using zero-base line validation. The correctness and reliability of data are verifird by using zero-base line between BD970 OEM board and Trimble refused NetR9. Type experiment results show that the design of the measuring receiver principle prototype can be continuous and stable operation, and can work out accurate and reliable real-time observation and ephemeris data, preliminary validation of principle prototype is realized.