Multi-information deep integration navigation micro-system and navigation method

Abstract

The invention discloses a multi-information deep integration navigation micro-system and a navigation method. The micro-system comprises a three-axis MEMS (Micro Electro Mechanical System) gyroscope chipset, a three-axis acceleration chipset, a satellite navigation chip, a magnetic field meter, a height meter, a signal-driven demodulation amplifying circuit, a multi-channel ADC (Analog to Digital Converter) chip, a navigation solution circuit and a power supply management circuit. The navigation method comprises the following steps: (1) initializing the micro system; (2) acquiring a motion state signal of a carrier; (3) receiving a satellite navigation radio frequency signal; (4) performing satellite capturing, satellite loop tracking and satellite navigation solution; (5) judging an initial alignment state; (8) if initial alignment is finished, performing a strap-down inertial navigation calculation; (9) judging whether satellite navigation information is available or not; (10) acquiring an optimal navigation parameter, and meanwhile feeding back the optimal navigation parameter. The navigation system has more functions and higher navigation accuracy, is miniaturized and is low in power consumption and cost, so that the demand of modern navigation is met.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a multi-information deep integrated navigation microsystem and a navigation method. Background technique [0002] With the development of modern science and technology, vehicles, aircraft, ships, and weapon systems have put forward higher and higher requirements for navigation systems. Traditional single navigation methods such as inertial navigation, global satellite navigation (GNSS), geomagnetic navigation, and electronic maps Therefore, more and more modern navigation adopts a variety of navigation combination methods, that is, combined navigation. Composite navigation improves the accuracy, anti-interference ability and redundancy of the navigation system. However, most of the current composite navigation systems are obtained by superimposing independent navigation systems, which have large volume, high power consumption, high cost, low precision, and fewer functions, and...

AI Technical Summary

Problems solved by technology

[0002] With the development of modern science and technology, vehicles, aircraft, ships, and weapon systems have put forward higher and higher requirements for navigation systems. Traditional single navigation methods such as inertial navigation, global satellite navigation (GNSS), geomagnetic navigation, and electronic maps Therefore, more and more modern navigation adopts a variety of navigation combination methods, that is, combined navigation. Composite navigation improves the accuracy, anti-interference ability and redundancy of the navigation system.

However, most of the current composite navigation systems are obtained by superimposing independent navigation systems, which have large volume, high power consumption, high cost, low precision, and fewer functions, and cannot meet the needs of modern navigation. Therefore, the development of Multi-information deep integrated navigation microsystem technology is one of the important trends in the development of navigation systems

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