Multi-accelerometer intelligent parameter identification, matching and hardware generative system and system

Abstract

Provided are a multi-accelerometer intelligent parameter identification, matching and hardware generative system and a system. The system comprises a testing assembly, a signal preprocessing module, a signal analysis unit, a hardware generative unit and a power module, wherein the testing assembly is formed by a high-precision index head and multiple accelerometer gauge outfits mounted on the high-precision index head, the signal preprocessing module carries out preprocessing on acquisition signals, the signal analysis unit conducts identification on the testing assembly and obtains parameters of a controller, and the hardware generative unit processes output signals of the testing assembly to achieve loop locking of a rebalance loop; the testing assembly, the signal preprocessing module and the signal analysis unit are sequentially connected; and the signal analysis unit is respectively connected with the hardware generative unit, the accelerometer gauge outfits and the power module. The method includes the steps of conducting system identification on the multi-accelerometer intelligent parameter identification, matching and hardware generative system through acquisition of input and output data of the multiple accelerometer gauge outfits, obtaining accurate estimation of mathematical models of the multiple accelerometer gauge outfits, and carrying out verification on identification results through comparison of simulation results and test data. According to the system and the method, design and debugging processes of the controller are simplified, and measuring and control precision is improved.

Description

technical field [0001] The invention relates to a parameter identification, matching and hardware generation system of multiple accelerometers. In particular, it relates to a multi-accelerometer intelligent parameter identification, matching and hardware generation system and method suitable for inertial navigation components such as flexible accelerometers. Background technique [0002] In an inertial navigation system, an accelerometer is one of the basic measurement elements. It is installed on the moving carrier and is used to sense and measure the acceleration of the moving carrier. After calculation, the moving track of the carrier can be obtained, and at the same time, a control signal for the moving of the carrier can be generated. Quartz flexible accelerometer is a mechanical pendulum accelerometer, which has the advantages of simple structure, small size, high precision and sensitivity, low power consumption, easy miniaturization, etc. It is widely used in the fie...

AI Technical Summary

Problems solved by technology

[0008] The above are the main reasons affecting the further development of the accelerometer rebalancing loop design technology. The direct consequence is that the mathematical model of the accelerometer head cannot be clarified, which leads to a great blindness in the design of the controller, which makes the loop debugging process inefficient, and It is difficult to guarantee the performance of the loop, and even affect the control and measurement accuracy of the accelerometer

Images