Data encoding method and device suitable for Beidou and GPS dual system differential data format

The invention discloses a data encoding method and device suitable for the Beidou and GPS dual system differential data format. According to the order and content, the data encoding method suitable for the Beidou and GPS dual system differential data format comprises the following steps: S1, unifyin...

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Hauptverfasser:	XING ZHANQI, LIU JUN, WU BIN, FU NING, LUAN JIAPENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	The invention discloses a data encoding method and device suitable for the Beidou and GPS dual system differential data format. According to the order and content, the data encoding method suitable for the Beidou and GPS dual system differential data format comprises the following steps: S1, unifying time of multiple system data; S2, unifying calculation starting references of original observed quantity of the multiple system data; S3, calculating a differential observed quantity of each system data based on a preset reference observed quantity; S4, judging whether the differential observed quantity is within a specified data bit or not; S5, if so, forming differential information that meets the requirements; and S6, performing data compression on the difference information, and performingcheck and error correction. According to the data encoding method suitable for the Beidou and GPS dual system differential data format disclosed by the invention, through transmitting the pseudorangeand carrier phase observe