Dead reckoning-based low-cost Big Dipper and MEMS tight-coupling positioning system and method
A dead reckoning and positioning system technology, applied in satellite radio beacon positioning systems, radio wave measurement systems, measurement devices, etc., can solve the problems of high dependence on search algorithms and large time costs
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[0085] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:
[0086] Such as figure 1 A low-cost Beidou and MEMS tightly coupled positioning system based on dead reckoning is shown, including Beidou receiver module 2, MEMS sensor module 1, Beidou and MEMS fusion algorithm module 4 and ARM-Linux embedded system module 3. The ARM-Linux embedded system module 3 is respectively connected with the Beidou receiver module 2, the MEMS sensor module 1, and the Beidou and MEMS fusion algorithm module 4.
[0087] The Beidou receiver module is used to capture and track satellite signals, and output pseudorange, pseudorange rate and satellite ephemeris information.
[0088] The MEMS sensor module includes a processor, and a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer respectively connected to the processor. The axis sensor information is used to estimate the heading angle and speed informa...
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