淡江大學機構典藏:Item 987654321/83737
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    題名: A quantum search algorithm for future spacecraft attitude determination
    作者: Tsaia, Jack;Hsiao, Fu-Yuen;Li, Yi-Ju;Shen, Jen-Fu
    貢獻者: 淡江大學航空太空工程學系
    關鍵詞: Quantum computing;Quantum search algorithm;Spaceflight;Attitude determination;Navigation and guidance
    日期: 2011-04
    上傳時間: 2013-03-20 16:57:31 (UTC+8)
    出版者: Kidlington: Pergamon
    摘要: In this paper we study the potential application of a quantum search algorithm to spacecraft navigation with a focus on attitude determination. Traditionally, attitude determination is achieved by recognizing the relative position/attitude with respect to the background stars using sun sensors, earth limb sensors, or star trackers. However, due to the massive celestial database, star pattern recognition is a complicated and power consuming job. We propose a new method of attitude determination by applying the quantum search algorithm to the search for a specific star or star pattern. The quantum search algorithm, proposed by Grover in 1996, could search the specific data out of an unstructured database containing a number N of data in only View the MathML source steps, compared to an average of N/2 steps in conventional computers. As a result, by taking advantage of matching a particular star in a vast celestial database in very few steps, we derive a new algorithm for attitude determination, collaborated with Grover's search algorithm and star catalogues of apparent magnitude and absorption spectra. Numerical simulations and examples are also provided to demonstrate the feasibility and robustness of our new algorithm.
    關聯: Acta Astronautica 68(7-8), pp.1208-1218
    DOI: 10.1016/j.actaastro.2010.10.023
    顯示於類別:[航空太空工程學系暨研究所] 期刊論文

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