Comparisons of Autonomous Orbit Determination Methods for Spacecraft Using Starlight Refraction;
星光折射航天器自主定軌方案比較
Four-pointed or six-pointed star sometimesKGcan be seen in a spinel, but it is rarely reported that there are multiple groups of asterism on the same spinel.
利用常規(guī)寶石學(xué)技術(shù)、拉曼光譜技術(shù)和電子探針對具有多組六射星光和四射星光效應(yīng)的尖晶石進(jìn)行了研究,發(fā)現(xiàn)由于存在多組定向排列的針狀包裹體,使尖晶石產(chǎn)生多組星光效應(yīng)。
In this article, the spinel with both four groups of six-pointed star and three groups of four-pointed star have been studied by means of conventional gemmological techniques, Raman spectroscopy and electron probe.
常見尖晶石有六射或四射星光。
An autonomous navigation scheme is designed by using the star sensor and horizontal instrument to observe the elevation angle of star.
利用星敏感器和地平儀測量"星光仰角",進(jìn)行自主導(dǎo)航方案設(shè)計(jì)。
Autonomous Orbit Determination by Stellar Refraction for Spacecraft;
基于星光折射航天器自主軌道確定
In this technology,the space reference of constellation is obtained by using stellar refraction to provide absolute position information of all or .
該技術(shù)可以有效地將星光折射和星間觀測兩種方法結(jié)合起來,利用星光折射提供星座中成員衛(wèi)星的絕對位置信息,給出星座的空間基準(zhǔn),再利用星間相對觀測,約束星座的幾何結(jié)構(gòu),提高星座的整體的導(dǎo)航精度。
Based on the analysis and reasoning of the star observation from carrier in low altitude and high altitude,a optimal star selection arithmetic of the celestial positioning is brought forward based on the spherical astronomy.
航天器高動(dòng)態(tài)星光定位實(shí)驗(yàn)室仿真的前提是確定視場內(nèi)的恒星,以便進(jìn)行后續(xù)的星圖模擬、星圖處理和定位解算。