Specific differential integration matched transfer alignment of stabilized sighting pod and combination navigation method thereof

Abstract

The invention discloses a specific differential integration matched transfer alignment of a stabilized sighting pod and a combination navigation method thereof, belonging to inertial navigation system. The alignment method comprises collecting signals of an inertial measurement unit; performing fast and accurate transfer alignment of the stabilized sighting pod; resolving inertial navigation based on pod stabilized sighting platform; performing error analysis, model establishment and supplementation of inertial navigation system and inertial components; and performing main inertial navigation / sub inertial navigation / GPS multi information variable structure combination navigation under the condition of pod flexible and rigid connection. The invention solves the problems of fast transfer alignment and navigation positioning of the stabilized sighting pod when taking off and flying in the air.

Description

technical field [0001] The invention relates to a specific force difference integral matching transfer alignment and a combined navigation method of a pod, which belongs to the field of inertial navigation. Background technique [0002] The stabilized pointing pod system is an advanced airborne electronic system that has been widely used in the fields of aircraft geodetic survey, remote sensing, and disaster rescue in recent years. The system can provide accurate positioning information of air and ground targets for aircraft and their airborne equipment to ensure Tracking, watching and detection of targets by airborne equipment. The development goal of my country's new generation of stable pointing pod system requires that the stable pointing pod system has certain autonomous navigation capabilities while having tracking and gaze functions. [0003] In response to the functional requirements of the new generation of pod systems with stable aiming, there is a strong demand f...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to solve the problem that the existing pod system cannot provide autonomous navigation information, improve the device configuration scheme, and install a strapdown inertial measurement unit on the randomly rotating photoelectric stabilization platform. The output information of the unit, combined with the pod navigation computer, provides a quasi-velocity / angular velocity matching transfer alignment and its combined navigation method for the pod, providing real-time, accurate and complete navigation and positioning information for the pod

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