Calculation method for optical navigation data of mars approaching section based on installation matrix correction

A technology of optical navigation and installation matrix, applied in the direction of combined navigator, etc., can solve the problems of not fully meeting the navigation requirements, reducing the accuracy and real-time performance of radio navigation, and long duration, achieving real-time high-precision navigation, good technical means, The effect of solving the communication delay

Inactive Publication Date: 2018-12-21
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

[0002] The Mars exploration mission has a long flight distance and a long duration, and there are a lot of unknowns and uncertainties in the detection object and detection environment. The resulting navigation data discontinuity and other problems cannot fully meet the navigation requirements of the special flight phase of Mars exploration (such as the braking capture segment)

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  • Calculation method for optical navigation data of mars approaching section based on installation matrix correction
  • Calculation method for optical navigation data of mars approaching section based on installation matrix correction
  • Calculation method for optical navigation data of mars approaching section based on installation matrix correction

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[0017] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0018] Such as figure 1 As shown, the present invention is based on the installation matrix correction Mars approach segment optical navigation data solution method comprising the following steps:

[0019] Step 1: When the Mars rover is approaching Mars, adjust the attitude of the rover so that the optical navigation sensor points to Mars;

[0020] Step 2: Optical navigation sensors image Mars, Phobos, and Deimos;

[0021] Step 3: Process the navigation image using the center point extraction te...

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Abstract

The invention provides a calculation method for optical navigation data of a mars approaching section based on installation matrix correction. The method comprises the following steps of step I, enabling a mars probe to adjust the posture of the probe in a process of approaching mars so that an optical navigation sensor points to mars; step II, enabling the optical navigation sensor to image mars,phobos and deimos; and step III, processing a navigation image by use of a center point extraction technology, determining a navigation target source center and acquiring a sight line direction of anavigation target source relative to the mars probe. With the calculation method for the optical navigation data of the mars approaching section based on installation matrix correction, the autonomousnavigation task requirement of Mars exploration in future can be satisfied and good technical means is provided for high-precision autonomous navigation of a deep space probe.

Description

technical field [0001] The invention relates to a method for calculating optical navigation data in the Mars approach section, in particular to a method for calculating optical navigation data in the Mars approach section based on installation matrix correction. Background technique [0002] The Mars exploration mission has a long flight distance and a long duration, and there are a lot of unknowns and uncertainties in the detection object and detection environment. The resulting navigation data discontinuity and other problems cannot fully meet the navigation needs of the special flight phase of Mars exploration (such as the braking capture segment). Therefore, it is urgent to carry out the research on Mars optical autonomous navigation method. Contents of the invention [0003] Aiming at the defects in the prior art, the purpose of the present invention is to provide a method for calculating optical navigation data of Mars approach segment based on installation matrix c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/24
CPCG01C21/24
Inventor 张伟张恒方宝东陈晓杜洋
Owner SHANGHAI SATELLITE ENG INST
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