Method based on filter of self-adapting closed loop for modifying navigator combined between big dipper double star and strapping inertial guidance

An integrated navigation system and strapdown inertial navigation technology, which is applied in the field of correction of the Beidou dual-star/strapdown inertial navigation system based on the adaptive closed-loop H∞ filter, which can solve the problem of the short construction time and data jump of the Beidou navigation system. Problems such as many change points and imperfect receiver error model
CN1916567AInactive Publication Date: 2007-02-21NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2007-02-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for revising integrated navigation system of Plough double star / strap down inertial navigation based on adaptive closed loop H filter includes utilizing inertial measuring component in SINS / BDNS integrated navigation system to measure angular speed signal and linear acceleration signal of carrier, obtaining speed and position of carrier by Plough receiver in utilizing Plough satellite information, carrying out strap down inertial operation by navigation computer according to obtained information to let adaptive closed loop H filter carry out revision on integrated navigation system.
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Description

1. Technical field

[0001] The invention relates to a method for correcting a Beidou dual-star / strapdown inertial navigation combined navigation system, in particular to a method for correcting it by using a robust filter combination in the satellite / strapdown inertial navigation combined system. 2. Background technology

[0002] Beidou Navigation System (BeiDou Naigation System, referred to as BDNS) is the first generation of satellite navigation system independently developed by my country, which obtains the position and speed of the carrier through radio ranging. The Strapdown Inertial Navigation System (SINS for short) is a device that obtains carrier navigation information based on the law of mechanics of relative inertial space proposed by Newton. It uses inertial components such as gyroscopes and accelerometers to sense the motion information of the running body, and then performs integral calculations through the computer to obtain navigation parameters such as the at...

Claims

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