Polarized light navigation sensor based on improved cataglyphis-imitated POL nerve cells and working method

Abstract

The invention discloses a polarized light navigation sensor based on improved cataglyphis-imitated POL nerve cells and a working method. The sensor comprises at least two polarized light receiving channels which comprise biconvex lenses, diaphragms, planoconvex lenses, filters and polarizing films which are arranged in sequence on the same optical axis along the direction of incident light, wherein incident light rays pass through the diagrams and the planoconvex lenses in sequence after being focused by the biconvex lenses to form vertically incident light rays; the vertically incident light rays are filtered by the filters to obtain single-color polarized light; the single-color polarized light enters the polarizing films and is divided into two standard orthogonal light rays; the two standard orthogonal light rays are transmitted to a photoelectric conversion module to obtain polarizing light electric signals.

Description

technical field [0001] The invention belongs to the field of navigation sensors, in particular to a polarized light navigation sensor and a working method based on improved POL neurons imitating sand ants. Background technique [0002] Navigation mainly includes satellite navigation system (GNSS), inertial navigation system (INS), celestial navigation system (CNS), database or scene reference navigation system, and radio navigation system. Inertial navigation system (InenialNavigation), applying Newton's law of mechanics, is a positioning system with integral solution. It is mainly composed of accelerometer, navigation computer, gyroscope, inertial navigation platform, navigation and compensation algorithm, etc. The accelerometer and gyroscope installed inside the carrier (usually an inertial measurement unit composed of three accelerometers and three gyroscopes) measure the specific force and angular velocity of the carrier's inertial space, and calculate the carrier's vel...

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Problems solved by technology

[0006] 1) In order to ensure a certain light intensity, the polarized light detection lens barrel cannot be made too small, which is not conducive to miniaturization; 2) The photodetector in the polarized light navigation sensor model does not receive pure parallel light, which is polarized by the polarizer The degree of polarization of light will be greatly affected; 3) The output of each photodetector cannot be calculated, and the calculation method is more complicated

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