旋轉(zhuǎn)調(diào)制式慣導(dǎo)系統(tǒng)隔離載體運(yùn)動算法
發(fā)布時間:2018-02-15 10:51
本文關(guān)鍵詞: 旋轉(zhuǎn)調(diào)制 捷聯(lián)慣性導(dǎo)航系統(tǒng) 隔離載體運(yùn)動 姿態(tài)角解耦算法 出處:《中國慣性技術(shù)學(xué)報(bào)》2017年04期 論文類型:期刊論文
【摘要】:旋轉(zhuǎn)調(diào)制式慣導(dǎo)系統(tǒng)中,轉(zhuǎn)位運(yùn)動受載體運(yùn)動的影響,誤差調(diào)制效果受影響。針對這一問題,提出基于載體姿態(tài)角解耦的隔離載體運(yùn)動算法。首先建立載體運(yùn)動姿態(tài)角與旋轉(zhuǎn)機(jī)構(gòu)之間的數(shù)學(xué)關(guān)系,然后設(shè)計(jì)了隔離載體運(yùn)動的力矩信號施加量的實(shí)時解耦算法,最終推導(dǎo)了隔離載體運(yùn)動力矩信號的公式,完成了載體運(yùn)動隔離算法的設(shè)計(jì)。數(shù)字仿真結(jié)果表明,通過該算法,可以降低載體運(yùn)動對誤差調(diào)制規(guī)律的影響。跑車試驗(yàn)結(jié)果表明,通過隔離載體運(yùn)動算法的應(yīng)用,轉(zhuǎn)向?qū)ο到y(tǒng)定位誤差影響由不隔離載體運(yùn)動時約0.5 nm降低到了基本為0 nm。
[Abstract]:In the rotary modulation inertial navigation system, the transposition motion is affected by the carrier motion, and the error modulation effect is affected. An algorithm for isolating carrier motion based on carrier attitude angle decoupling is proposed. Firstly, the mathematical relationship between carrier motion attitude angle and rotation mechanism is established, and then a real-time decoupling algorithm is designed for isolating carrier motion torque signal. Finally, the formula of isolating carrier motion moment signal is deduced, and the design of carrier motion isolation algorithm is completed. The digital simulation results show that the influence of carrier motion on error modulation law can be reduced by this algorithm. Through the application of the algorithm of isolating carrier motion, the influence of steering on the positioning error of the system is reduced from about 0.5 nm to 0 nm when the carrier moves without isolation.
【作者單位】: 天津航海儀器研究所;中國人民解放軍72433部隊(duì)自動化工作站;
【基金】:裝備預(yù)先研究項(xiàng)目(3020107010202)
【分類號】:TN96
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