A mobile platform testing system
A mobile platform and test system technology, applied in radio wave measurement systems, satellite radio beacon positioning systems, measurement devices, etc., can solve problems such as low data update rate, divergent navigation accuracy, and inability to work alone for a long time, and achieve work The effect of long time and convenient charging
Active Publication Date: 2016-04-06
63956 UNIT OF PLA
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However, GPS also has shortcomings such as the signal is easily blocked or interfered, the data update rate is low, and the output of attitude information is lacking; in comparison, the inertial navigation system (INS) is a completely autonomous navigation system with a high data update rate. , and has attitude information output, but due to the existence of gyro error drift, even high-precision INS also faces the problem of error accumulation as the navigation time prolongs
Navigation accuracy diverges over time, cannot work alone for long periods of time, must be constantly calibrated
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[0102] Below in conjunction with accompanying drawing, structure of the present invention is explained in detail, as figure 1As shown, a mobile platform test system includes a monitoring reference station and a mobile station fixed on the mobile platform. The monitoring reference station includes a base station data transmission station connected to a monitoring computer and a differential GPS reference station. The mobile station includes a navigation computer connected to The fiber optic gyro data acquisition and processing unit, the accelerometer data acquisition and processing unit and the satellite positioning and navigation unit, the satellite positioning and navigation unit is connected with the navigation antenna, the navigation computer is connected to the mobile station data transmission station through the communication controller, the fiber optic gyro data acquisition and processing unit and the acceleration The meter data acquisition and processing unit is connecte...
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The invention discloses a mobile platform test system and an error compensation algorithm. The mobile platform test system comprises a monitoring reference station and a mobile station fixed on a mobile platform, the monitoring reference station comprises a reference station data transmission radio station and a differential GPS (Global Positioning System) reference station which are connected with a monitoring computer, the mobile station comprises a fiber-optic gyroscope data acquisition and processing unit, an accelerometer data acquisition and processing unit and a satellite positioning and navigation unit which are connected with a navigation computer, the satellite positioning and navigation unit is connected with a navigation antenna, the navigation computer is connected with a mobile station data transmission radio station through a communication controller, and the fiber-optic gyroscope data acquisition and processing unit and the accelerometer data acquisition and processing unit are connected with the navigation computer through an IMU (Inertial Measurement Unit) compensation unit. The mobile platform test system and the error compensation algorithm which are designed by the invention solve the problem in an inertial navigation system that errors exist in the mounting of inertial elements and elements and the process of the engineering implementation of the system.
Description
technical field [0001] The invention belongs to a strapdown inertial navigation test system, in particular to a mobile platform test system and an error compensation algorithm. Background technique [0002] GPS has the advantages of high positioning accuracy and no error accumulation over time, and the positioning accuracy of differential GPS technology can reach centimeter level. However, GPS also has shortcomings such as the signal is easily blocked or interfered, the data update rate is low, and the output of attitude information is lacking; in comparison, the inertial navigation system (INS) is a completely autonomous navigation system with a high data update rate. , and has attitude information output, but due to the existence of gyro error drift, even the high-precision INS also faces the problem of error accumulation as the navigation time prolongs. Navigation accuracy diverges over time, cannot work alone for long periods of time, and must be constantly calibrated. ...
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IPC IPC(8): G01S19/47G01C25/00
Inventor 袁靖军欧阳初田静
Owner 63956 UNIT OF PLA