Dynamic adaptability matching method for precision and inertia satellite deep combination system of inertia device

Abstract

The invention discloses a dynamic adaptability matching method for the precision and inertia satellite deep combination system of an inertia device and belongs to the technical field of navigation. The method is used for solving the choose type problem for the inertial device during the practical application process of the inertial / satellite deep combination system. Through analyzing the influence situation of the dynamic environment of a carrier on the inertia device, the propagation characteristics of the error of the inertial device is deduced. Meanwhile, the parameter configuration of a current receiver, the error grade of the inertial device and the loop steady-state tracking error of the carrier in the dynamic state are calculated. As a result, the loop stability is judged. Finally, the device selection and the parameter configuration of the deep-combination practical system under the high-dynamic scene are finally realized. According to the method of the invention, the device selection and system parameter configuration work under specified dynamic indexes can be effectively guided. Therefore, the method has strong engineering reference and application value.

Description

technical field [0001] The invention belongs to the technical field of navigation, and in particular relates to a method for matching the precision of an inertial device and the dynamic adaptability of an inertial satellite deep combination system. Background technique [0002] The inertial / satellite integrated navigation system is a mainstream navigation method in the field of navigation at present, and the deep integrated navigation technology introduces the inertial information into the receiver loop, so that the system has both high precision and high dynamic stability. Research frontiers in the field of navigation. However, since the deep combination system involves two systems of inertial navigation and satellite navigation, the complex loop aided design and hardware implementation are the technical bottlenecks restricting its large-scale promotion and use. [0003] Domestic and foreign scientific research institutions and researchers have done a lot of related work a...

AI Technical Summary

Problems solved by technology

However, since the deep combination system involves two systems of inertial navigation and satellite navigation, the complex loop-aided design and hardware implementation are the technical bottlenecks restricting its large-scale promotion and use.

[0003] Domestic and foreign scientific research institutions and researchers have done a lot of related work around the realization of the principle of deep combination and system development. However, in the process of system design, they often face the problem of inertial device selection under specified dynamic conditions. Due to the constraints of the test environment , it is difficult to directly use the prototype for physical performance testing, how to take dynamic adaptability into consideration in the design process is a very important issue

So far, there has been no report on a universal matching method between the precision of inertial devices and the dynamic adaptability of deep integrated systems of inertial satellites

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