內(nèi)容簡介:
碩士學(xué)位論文 基于STK的空間目標(biāo)監(jiān)視雷達(dá)系統(tǒng)設(shè)計(jì)研究,正文共55頁。
【摘要】 隨著人類航天活動的日益增強(qiáng),空間目標(biāo)數(shù)量日益增多,空間碎片是人類航天活動遺棄在空間的廢棄物,是空間環(huán)境的主要污染物。為保障我國載人航天、探月工程及應(yīng)用衛(wèi)星等航天活動安全,對空間碎片的探測較為迫切。本文首先綜述了國內(nèi)外空間目標(biāo)監(jiān)視系統(tǒng)的現(xiàn)狀及發(fā)展趨勢,并對監(jiān)視設(shè)備進(jìn)行了介紹。接著重點(diǎn)對空間目標(biāo)環(huán)境進(jìn)行了分析,從散射截面積、周期分布、偏心率分布、傾角分布、近地點(diǎn)遠(yuǎn)地點(diǎn)高度和半長軸等多個(gè)方面進(jìn)行了歸納總結(jié)。然后研究了空間目標(biāo)監(jiān)視雷達(dá)的設(shè)計(jì)方法,分別從頻段選擇、極化方式的選擇、雷達(dá)規(guī)模、陣面傾角和多目標(biāo)能力等多個(gè)方面進(jìn)行了分析,實(shí)現(xiàn)了空間目標(biāo)監(jiān)視雷達(dá)的設(shè)計(jì)方法。文中最后采用基于STK的空間目標(biāo)監(jiān)視雷達(dá)效能分析方法,對STK仿真軟件及其模塊進(jìn)行了闡述,在此基礎(chǔ)上進(jìn)行了STK用于空間目標(biāo)監(jiān)視雷達(dá)搜索與跟蹤能力仿真,對仿真過程進(jìn)行了詳細(xì)分析,并給出了相應(yīng)的實(shí)現(xiàn)方法。
【Abstract】 The quantities of space debris are increased day by day with the human space activities increasing. Space debris are castoff abandoned by human space activities, they are the dominating pollutant. Exploration of space debris is necessary to ensure space activities safety, such as manned space, lunar exploration and application of satellite, etc.Firstly, space target surveillance system is summarized, and Surveillance Equipments are introduced. Then space target environment are analyzed, including scatter cross section, cycle distribution, inclination distribution, eccentricity distribution, perigee altitude, apogee altitude, and Semi-major axis. The design method of space target surveillance radar is studied, and a new design method is presented analyzing from several aspects, such as the choice of frequency band and polarization mode, radar scale, inclination of array and multi-objective ability. The method of space target surveillance radar of performance analyze is presented. STK simulation software and modules are introduced. The ability of searching and tracking are simulated based on STK. The process of simulation is analyzed in detail, and the implementation method is given.
【關(guān)鍵詞】 STK; 雷達(dá); 監(jiān)視; 設(shè)計(jì);
【Key words】 STK; radar; surveillance; design;
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