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Chapter 55 Exploration of BD2/SINS Deeply Integrated Navigation in CZ-7 Launch Vehicle Guidance System

機(jī)譯：第55章CZ-7運(yùn)載火箭制導(dǎo)系統(tǒng)中BD2 / SINS深度集成導(dǎo)航的探索

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Long March 7 (CZ-7) launch vehicle is China's new generation of non-toxic, non-polluting, high performance, low cost and high thrust medium launch vehicle series. As an important part of launch vehicle flight control system, the main function of the guidance system is to control the center of mass motion using the motion parameters provided by navigation system, ensure that the launch vehicle along a predetermined trajectory. At present, CZ-7 launch vehicle guidance system used global navigation satellite system (GNSS) and the strapdown inertial navigation system (SINS) loosely integrated navigation mode. In the first flight phase of launch vehicle, the positioning antenna of satellite receiver disturbed largely, and launch vehicle injection accuracy is decided by the guidance accuracy of second flight phase, thus GNSS/SINS loosely integrated navigation mode used only in the second flight phase of launch vehicle. In order to further improve injection accuracy of CZ-7 launch vehicle, the BD2/SINS deeply integrated which applied in the CZ-7 launch vehicle guidance system are discussed in this paper. The system structure and applicability condition for BD2/SINS deeply integrated navigation are analysis briefly in the paper, based on the new characteristics of CZ-7 launch vehicle. The research results can provide a theoretical basis and technical support for the new launch vehicle guidance system.
機(jī)譯：長(zhǎng)征7月7日（CZ-7）運(yùn)載火箭是中國(guó)新一代的無(wú)毒，無(wú)污染，高性能，低成本和高推力的中型運(yùn)載火箭系列。作為運(yùn)載火箭飛行控制系統(tǒng)的重要組成部分，制導(dǎo)系統(tǒng)的主要功能是利用導(dǎo)航系統(tǒng)提供的運(yùn)動(dòng)參數(shù)控制質(zhì)心運(yùn)動(dòng)，確保運(yùn)載火箭沿預(yù)定的軌跡運(yùn)動(dòng)。目前，CZ-7運(yùn)載火箭制導(dǎo)系統(tǒng)使用的是全球?qū)Ш叫l(wèi)星系統(tǒng)（GNSS）和捷聯(lián)慣性導(dǎo)航系統(tǒng)（SINS）的松散集成導(dǎo)航模式。在運(yùn)載火箭第一飛行階段，衛(wèi)星接收機(jī)的定位天線受到很大干擾，運(yùn)載火箭注入的精度由第二飛行階段的導(dǎo)航精度決定，因此GNSS / SINS松散地集成了僅在飛行第二階段的導(dǎo)航模式。運(yùn)載工具。為了進(jìn)一步提高CZ-7運(yùn)載火箭的噴射精度，本文討論了在CZ-7運(yùn)載火箭制導(dǎo)系統(tǒng)中應(yīng)用的深度集成的BD2 / SINS?；贑Z-7運(yùn)載火箭的新特點(diǎn)，簡(jiǎn)要分析了BD2 / SINS深度集成導(dǎo)航的系統(tǒng)結(jié)構(gòu)和適用條件。研究成果可為新型運(yùn)載火箭制導(dǎo)系統(tǒng)提供理論依據(jù)和技術(shù)支持。

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