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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 3. Отображено 3.
11-09-2013 дата публикации

Strapdown inertial navigation system gyro drift and course error correction method by using only position information under one position inertial system

Номер: CN103292808A
Автор: Gao Wei, Che Yanting, Shi Hongyang, Ben Yueyang, Sun Feng, Bao Guiqing, Zhang Xin
Принадлежит:

The invention relates to a strapdown inertial navigation system gyro drift and course correction technology only by using usage position information without restriction to carrier motion state. Compared with the prior art, the horizontal misalignment angle is needed to be maintained small only in the correction time, and the horizontal misalignment is not needed to be maintained small all the time.

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Номер записи: 1
18-09-2013 дата публикации

Correction method of gyroscope drift of strapdown inertial navigation system by using position and course information under inertial system

Номер: CN103308046A
Автор: Gao Wei, Che Yanting, Shi Hongyang, Ben Yueyang, Sun Feng, Bao Guiqing, Zhang Xin
Принадлежит:

The invention discloses a correction method of gyroscope drift of a strapdown inertial navigation system by using position and course information under an inertial system. Compared with the traditional method, the correction method only requires keeping a horizontal misalignment angle as a small angle at a correction moment, and does not require keeping the horizontal misalignment angle as the small angle all the time.

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Номер записи: 2
18-12-2013 дата публикации

Pipeline flaw detection system navigation and location method based on IMU (Inertial Measurement Unit)

Номер: CN103453903A
Автор: Ben Yueyang, Yang Jiaolong, Li Jingchun, Che Yanting, Liu Xinyuan, Zhao Weiheng, Ruan Shuangshuang, Yang Xianglong, Xie Songlin, Lin Xingchen
Принадлежит:

The invention discloses a pipeline flaw detection system navigation and location method based on an IMU (Inertial Measurement Unit). The pipeline flaw detection navigation and location method comprises the following steps: carrying out two groups of inertial navigation calculation simultaneously on one set of IMU output data; when a pipeline flaw detection system passes through a fixed magnetic tag, receiving position reference signals of the fixed magnetic tag, when the pipeline flaw detection system receives three groups of position reference signals, readjusting an SINS2 (Strapdown Inertial Navigation System 2) by using a difference between three groups of received position reference signals and SINS1 output positions at corresponding moment as a measurement amount: measuring a course error delta K(tn+2) and a gyroscopic drift Epsilon and compensating, and correcting a position error of the SINS2; carrying out dead reckoning by using the speedometer information and a course and a ...

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Номер записи: 3

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