Dynamic testing method of inertial/satellite deep integrated navigation system stimulated by hardware interface
A deep integrated navigation and system dynamic technology, applied in the field of navigation, can solve problems such as mismatch with the real application environment and the inability to verify system reliability with pure digital simulation methods, so as to reduce time and test costs, and strengthen engineering reference and application value. , the effect of flexible testing methods
Active Publication Date: 2018-04-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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[0004] The present invention provides a dynamic testing method for an inertial / satellite deep integrated navigation system stimulated by a hardware interface. Aiming at the problem that the dynamic test simulation environment of the deep integrated system does not match the real application environment, it simulates the system input in the actual working environment and solves the problem. The problem that the pure digital simulation method cannot verify the reliability of the system
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[0032] The invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] The present invention designs an inertial satellite deep combination dynamic test simulation environment, which is designed from the perspective of the real device interface, and can complete the dynamic test under various conditions indoors, and solves the problem that the pure digital simulation method cannot correspond to the real working state of the system problem, the flow chart of the method is as follows figure 1 shown. The method includes the following steps:
[0034] Step 1, generate the track of the real dynamic flight of the simulated carrier by Matlab software;
[0035] Step 2, the track data packet is input to the satellite signal generator to generate analog GPS or Beidou satellite radio frequency signals corresponding to the dynamic track;
[0036] Step 3. The RF signal is divided into two channels by the splitter. One signal is sent to the ...
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The invention discloses a dynamic information simulation method of an inertial / satellite deep integrated navigation system based on hardware interface excitation, and belongs to the technical field of navigation. The present invention simulates the movement of the carrier, calculates and generates the fixed-format carrier movement track data packet through Matlab software, uses it as the input of the satellite signal generator, makes it generate the simulated GPS or Beidou satellite radio frequency signal, and then utilizes the Ublox The ARM processor board of the receiver chip processes the above-mentioned satellite signals, and generates time-synchronized inertial sensor simulation data, and finally inputs the inertial sensor data and satellite signals into the inertial / satellite deep combination system in the form of a real hardware interface, so that The indoor realization is aimed at the dynamic simulation test of the deep composite system.
Description
Technical field: [0001] The invention relates to a dynamic testing method for an inertial / satellite deep integrated navigation system stimulated by a hardware interface, which belongs to the technical field of navigation. Background technique: [0002] Inertial navigation system and satellite navigation system have their own principle defects, and inertial / satellite integrated navigation technology combines the two, learn from each other, and improve the overall navigation accuracy and reliability of the system, so integrated navigation technology has always been a research hotspot in the field of navigation . Among them, the principles of loose combination and tight combination navigation technology are relatively simple, and have been widely discussed and applied. However, because the deep integrated navigation technology introduces inertial information into the satellite receiver loop, it involves many aspects of research content such as algorithm design and hardware imp...
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IPC IPC(8): G06F17/50
Inventor 陈驵赖际舟刘建业柳敏吴奇白师宇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS