Microminiature personal combined navigation system as well as navigating and positioning method thereof

An integrated navigation system and integrated navigation technology are applied in the structural design of the personal integrated navigation system and the field of navigation and positioning. Positioning, improving performance, mitigating effects of electromagnetic interference
CN102445200AInactive Publication Date: 2012-05-09NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2012-05-09
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a microminiature personal combined navigation system as well as a navigating and positioning method thereof. The system is composed of a subsystem installed on the foot part of a human body and a subsystem installed on the trunk position, wherein the subsystem installed on the foot part comprises an MEMS IMU (Micro-electromechanical Systems Inertial Measurement Unit), a magnetometer and a communication module; and the subsystem installed on the trunk position comprises a satellite navigation receiver, a Doppler velometer, an atmospheric pressure altimeter, a communication module and a microminiature navigation computer. The positioning method comprises the following steps of: collecting the MEMS IMU signal; modeling and correcting the random error of a gyroscope and an accelerometer; initially aligning an MEMS inertial navigation system; resolving strapdown inertial navigation, and correcting zero speed; carrying out combined navigation of the MEMS inertial navigation system / satellite navigation receiver / the Doppler velometer / the magnetometer / and the atmospheric pressure altimeter; and displaying the navigation result in real time. The microminiature individual combined navigation system is convenient to individually carry, individual real-time gesture fixing, velocity measurement and positioning can be realized, and whole and precise real-time navigation positioning information can be provided for pedestrians, operating personnel, soldiers, rescue workers and the like in the complex electromagnetic environment.
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Description

technical field

[0001] The invention belongs to the field of inertial and integrated navigation, in particular to a structural design of a personal integrated navigation system based on MEMS inertial sensors and other auxiliary navigation devices and a navigation and positioning method thereof. Background technique

[0002] With the rapid development of navigation and positioning technology, personal navigation and positioning has become an important branch of navigation and positioning technology. In recent years, with the continuous expansion of the application environment, new requirements have been put forward for the performance and environmental adaptability of personal navigation and positioning technology.

[0003] At present, most of the relatively mature personal navigation and positioning solutions are based on the satellite navigation system to realize the positioning function. In the technical soldier equipment plan, the satellite navigation system is used to p...

Claims

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