By Wei Quan, Jianli Li, Xiaolin Gong, Jiancheng Fang
This ebook not just introduces the rules of INS, CNS and GNSS, the comparable filters and semi-physical simulation, but in addition systematically discusses the major applied sciences wanted for built-in navigations of INS/GNSS, INS/CNS, and INS/CNS/GNSS, respectively. INS/CNS/GNSS built-in navigation expertise has demonstrated itself as an efficient instrument for specific positioning navigation, which may make complete use of the complementary features of other navigation sub-systems and significantly increase the accuracy and reliability of the built-in navigation approach. The ebook deals a beneficial reference advisor for graduate scholars, engineers and researchers within the fields of navigation and its control.
Dr. Wei Quan, Dr. Jianli Li, Dr. Xiaolin Gong and Dr. Jiancheng Fang are all researchers on the Beijing collage of Aeronautics and Astronautics.
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Example text
Antenna phase center error is caused by different incident angles, and equivalent range error may reach a few millimeters or even a few centimeters according to conditions of antenna performance. 1 [9]. 5 Celestial Navigation System Celestial navigation realizes positioning and attitude determination through angle measurement in essence. ) by using of celestial sensor and obtains position and attitude of carriers in motion through calculation. Before the appearance of radio navigation in 1930s, celestial navigation has always been the only available navigation technology [11].
Second application: attitude determination of guided missile, aircraft, and satellite. Its basic principle is to provide high-precision attitude information for navigation of guided missile, aircraft, and satellite through the attitude of the carrier relative to geocentric inertial coordinate system measured through celestial sensor (such as the star sensor whose attitude measurement precision may reach second of arc). CNS is generally classified into autonomous celestial positioning system (used for positioning of satellite and naval ship) and celestial attitude determination system (used for navigation of guided missile and aircraft) according to the difference of its application object.
By using of celestial sensor and obtains position and attitude of carriers in motion through calculation. Before the appearance of radio navigation in 1930s, celestial navigation has always been the only available navigation technology [11]. It remains to be used widely up to now owing to its advantages such as strong autonomy, high-precision attitude measurement and error not accumulating with time. At present, CNS is mainly applied in two fields: First application: positioning of naval ship, aircraft, and spacecraft.