First, the satellite constellation topology and the satellite network are introduced in this paper. A comprehensive overview on LEO satellite network routing algorithm research status is given, including the comparisons of several major LEO satellite network routing protocols like DT-DVTR(Discrete Time Dynamic Virtual Topology Routing)粗大长av在线、AR and FSA.

本文首先介紹了衛(wèi)星星座的拓?fù)浣Y(jié)構(gòu)和衛(wèi)星網(wǎng)絡(luò)的組網(wǎng)方式色色色一本，對(duì)LEO衛(wèi)星網(wǎng)絡(luò)路由算法研究現(xiàn)狀進(jìn)行了綜述，對(duì)主要的幾種LEO衛(wèi)星網(wǎng)絡(luò)路由協(xié)議如DT-DVTRDiscrete Time Dynamic Virtual Topology Routin(來(lái)源：554fABC論文網(wǎng)www.abclunwen.comg国产131在线视频免费观看、AR和FSA等進(jìn)行了詳細(xì)的比較并論述了它們具有的優(yōu)點(diǎn)和存在的缺點(diǎn)久久铯综合网。

The outer space including LEO satellite orbits is divided into some three-dimensional cells which are moving on even velocity.The cells merge into clusters according to density of LEO satellites.

LEO衛(wèi)星軌道所處的外層空間被劃分成移動(dòng)的分區(qū)，根據(jù)結(jié)點(diǎn)的密度分區(qū)合并為簇国产男女另类裸交一级黄片，然后在簇內(nèi)根據(jù)組合加權(quán)方式選擇一個(gè)MEO結(jié)點(diǎn)作為簇首久久国产精品免费专区A片。

The results can be referenced when determining the parameters of LEO-LEO occultation satellites.

該研究結(jié)果對(duì)LEO-LEO掩星探測(cè)衛(wèi)星的軌道設(shè)計(jì)有一定的參考作用。

The character of LEO-LEO satellite occultation events is well discussed in this paper. The impact of satellite orbit parameters on the number and distribution of occultation events are discussed based on simulation.

文章對(duì)LEO-LEO衛(wèi)星掩星事件的特性進(jìn)行了深入討論AA极黄片，通過(guò)仿真計(jì)算定量討論了軌道參數(shù)對(duì)掩星事件次數(shù)及分布的影響色色视频黄。

My favorite Leo, since I have you .my heart has a dependent and a kind of sustenance, my life has its hope. Even if I am in face of the most difficult and sorrowful things ,I believe that I can lost everything ,I will still have Leo .

我最愛(ài)的Leo，自從有了你黄啪视频，生命的希望不再失落亚洲一区二区三区在线中文字幕，我的心就有了一個(gè)依靠，一種寄托欧美亚洲视频网，即使遇到再困難傷心的事美女扒开尿口给男人桶的动态图，我都相信，我可以失去一切香蕉欧美，但我還有Leo久久久久久久久精品无码中文字幕，是會(huì)愛(ài)我的。

A LEO constellation composed of two or more satel- lites can improve the time and space resolution and increase the number of occultation events greatly compared with a single LEO satellite.

與單顆LEO衛(wèi)星相比操人人操人人爽爽爽操操操，由多個(gè)衛(wèi)星組成的LEO星座觀測(cè)到的掩星事件在時(shí)空分辨率和數(shù)量上都有很大的提高最新在线观看你懂的。

Finally, the comparison analysis of the performance evaluation results is given as well. Some conclusions, which is the performance comparison of the single-layered LEO satellite network and the double- layered LEO/MEO satellite network's with the variation of network load, are derived thereby.

最后，對(duì)兩個(gè)模型的性能評(píng)價(jià)結(jié)果進(jìn)行了對(duì)比分析免费又黄又裸乳的视频网站，得出了有關(guān)在網(wǎng)絡(luò)負(fù)載變化情況下LEO單層衛(wèi)星網(wǎng)絡(luò)和LEO/MEO雙層衛(wèi)星網(wǎng)絡(luò)的性能優(yōu)劣比較結(jié)論野狼社区永久入口www55ys66。

The performance evaluation on a single-layered LEO satellite network and a double-layered LEO/MEO satellite network is carried out by Stochastic Petri Net model-based analysis.

基于隨機(jī)Petri網(wǎng)模型方法，分別對(duì)LEO單層衛(wèi)星網(wǎng)絡(luò)和LEO/MEO雙層衛(wèi)星網(wǎng)絡(luò)進(jìn)行了性能分析国产电影精品一区在线播放。

The following conclusions are drawn. 1 The orbit parameters that have relatively greater influence on the number and latitudinal distribution of annual occultation events are orbit inclination, orbit height, Right Ascension of Ascending Node and Argument of Perigee in turn. All four parameters have little impact on the longitudinal distribution of annual occultation events. 2 The orbit inclination of Transmitting Satellite and Receiving Satellite impacts both LEO－LEO occultation events number and their latitudinal distribution most. The number of occultation events reaches the maximum as the sum of the two inclination angles nears 180 degrees. The one that far away from 90 degrees of the two inclination angles determines the latitude range of the occultation events. 3 LEO－LEO occultation events number reaches a maximum when the heights of TS and RS are the same, and it reaches the maximum when the heights of TS and RS are 600 km . 4 The RAAN of TS and RS has a great influence on the LEO－LEO occultation number, but has little influence on occultation distribution.

結(jié)果指出：1對(duì)一年掩星事件數(shù)量及其緯度分布影響大的軌道參數(shù)依次是軌道傾角巨胸喷奶水视频www漫画、軌道高度、升交點(diǎn)赤經(jīng)和近地點(diǎn)角距加勒比在线网站；而這些參數(shù)對(duì)一年掩星事件的經(jīng)度分布影響都不大啦啦啦WWW在线观看免费观看；2發(fā)射衛(wèi)星和接收衛(wèi)星傾角之間的相互關(guān)系對(duì)掩星事件數(shù)量和緯度分布影響最大，兩衛(wèi)星傾角接近互補(bǔ)時(shí)掩星事件最多免费A片在线录像，兩顆LEO衛(wèi)星中與90°相差較大的傾角決定了LEO－LEO掩星事件的緯度分布范圍一人人看性；3發(fā)射衛(wèi)星和接收衛(wèi)星處于同一軌道高度時(shí)，LEO－LEO掩星事件數(shù)取得極大值射精啪啪黄片欧美，發(fā)射衛(wèi)星和接收衛(wèi)星都采用600 km的軌道高度亚洲一级黄色视频在线观看，一年LEO－LEO掩星事件數(shù)最多；4 發(fā)射衛(wèi)星和接收衛(wèi)星升交點(diǎn)赤經(jīng)的相互關(guān)系對(duì)LEO－LEO掩星事件數(shù)量影響很大，發(fā)射衛(wèi)星和接收衛(wèi)星升交點(diǎn)赤經(jīng)之差為120°或240°時(shí)掩星事件數(shù)量最多中文字幕亚洲激情，RAAN對(duì)掩星事件緯度和經(jīng)度分布影響不大男人天堂.com；5近地點(diǎn)角距對(duì)掩星事件數(shù)量和分布影響都不大。

And it came to pass sometimes that when Brother Leo was removing the bandage from the wound in the side, St Francis, because of the pain caused thereby, would lay his hand on Brother Leo's breast, and at the touch of that holy hand Brother Leo felt such sweetness of devotion as well-nigh made him to fall fainting to the ground.

后來(lái)中国内地最新一级A毛片免费不卡视频， 有時(shí)候久久riav25.co，當(dāng)Leo弟兄正在幫助他從傷口處解下繃帶時(shí)，圣方濟(jì)各因?yàn)樘弁磁访廊蘸侵抻执钟执驛级视频，把手搭在Leo的胸前欧美污视频一区，被圣方濟(jì)各的手接觸到的感覺(jué)如此甜蜜，以致于差點(diǎn)讓他昏倒在地上国产超级碰AV。