本文選題：日凌 + 轉(zhuǎn)發(fā)式衛(wèi)星測距��； 參考：《中國科學院研究生院（國家授時中心）》2013年碩士論文

【摘要】：與自然衛(wèi)星一樣，人造衛(wèi)星也存在特殊天象，日凌就是其中一種。日凌發(fā)生期間，，衛(wèi)星和太陽同時出現(xiàn)在在地面天線主瓣寬度內(nèi)，太陽產(chǎn)生的寬頻電磁波進入天線的波束范圍內(nèi)，形成巨大的噪音干擾，從而嚴重干擾天線接收衛(wèi)星信號。對于轉(zhuǎn)發(fā)式衛(wèi)星測距系統(tǒng)這種高精度的基于雙向時間比對的測距系統(tǒng)，日凌會對其觀測結(jié)果造成一定程度的影響。本文設(shè)計并實現(xiàn)了基于高精度DE405歷表的日凌時間計算程序。并根據(jù)此程序計算日凌發(fā)生時間，分析日凌對測距數(shù)據(jù)的影響及其對GEO衛(wèi)星定軌結(jié)果的影響。得到以下結(jié)論：日凌對于測軌結(jié)果主要表現(xiàn)為噪聲影響，通信信道中噪聲增加使得信噪比下降而造成的接收數(shù)據(jù)誤差，表現(xiàn)為接收數(shù)據(jù)中出現(xiàn)明顯跳變和較多野值，日凌噪聲誤差對不同測站的影響不同，這與測站的分布有關(guān)。在現(xiàn)有轉(zhuǎn)發(fā)式衛(wèi)星測距系統(tǒng)的四個測站中，受影響最大的是昆明站，昆明站受影響的總體時間雖然短，但是相比其他測站受影響的強度較大，且每天受影響的差別不大。其次是西安站，西安站受影響的時間較昆明站長，但是有明顯的隨時間變化逐漸增大然后再減小的過程，且西安站地理經(jīng)度接近1號星星下點經(jīng)度，所以西安1號衛(wèi)星受日凌影響的強度大于4號衛(wèi)星受日凌影響的強度�？κ舱镜牡乩砦恢幂^為特殊，其地理經(jīng)度接近4號衛(wèi)星的星下點經(jīng)度。對喀什站來說，4號衛(wèi)星受日凌影響的強度大于1號衛(wèi)星受日凌影響的強度。長春站因為地理位置因素影響是四個站中受日凌影響最小的測站。定軌結(jié)果受日凌影響從RTN三個方向來說，N方向受到的影響最大。
[Abstract]:Like natural satellites, satellites have special celestial phenomena, such as solar transit. During the solar transit, the satellite and the sun appear simultaneously in the width of the main lobe of the ground antenna, and the wide-band electromagnetic wave generated by the sun enters the antenna beam, resulting in a huge noise interference, which seriously interferes with the antenna receiving the satellite signal. For the high precision ranging system based on bidirectional time comparison, the transit of sun will affect the observation results to a certain extent. In this paper, a program for calculating transit time based on high precision DE405 calendar is designed and implemented. According to the program, the influence of the transit on the ranging data and the orbit determination results of GEO satellite is analyzed. The following conclusions are obtained: the effect of sun-transit on orbit measurement is mainly noise, and the error of receiving data caused by the increase of noise in the communication channel is caused by the decrease of signal-to-noise ratio, which is manifested by the obvious jump and more outliers in the received data. The effect of sunstroke noise error on different stations is different, which is related to the distribution of the stations. Kunming station is the most affected among the four stations of the existing transponder satellite ranging system. Although the total time of Kunming station is short, the influence intensity of Kunming station is larger than that of other stations, and the difference is not obvious every day. The second is Xi'an station. Xi'an station is affected by more time than Kunming station master, but there is an obvious process of increasing gradually with time and then decreasing, and the geographical longitude of Xi'an station is close to the longitude under star No. 1. Therefore, the intensity of Xi'an 1 satellite affected by solar transit is greater than that of 4 satellite. The geographical longitude of Kashi station is close to the subsatellite longitude of satellite 4. For Kashi station, the intensity of 4 satellite affected by solar transit is greater than that of 1 satellite. Changchun station is the least affected by solar transit among the four stations because of geographical location. The orbit determination results are most affected by solar transit from the three directions of RTN.
【學位授予單位】：中國科學院研究生院（國家授時中心）
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：P228

【參考文獻】

相關(guān)期刊論文 前10條

1 雷輝;李志剛;楊旭海;武文俊;成璇;馮初剛;;基于轉(zhuǎn)發(fā)式的北斗衛(wèi)星導航系統(tǒng)地球靜止軌道衛(wèi)星精密定軌試驗[J];測繪學報;2011年S1期

2 胡雄,曾楨,張訓械,熊建剛,張冬婭,黃澤榮,艾勇;無線電掩星技術(shù)及其應用[J];電波科學學報;2002年05期

3 周義炎,吳云,喬學軍,張訓械;GPS掩星技術(shù)和電離層反演[J];大地測量與地球動力學;2005年02期

4 胡雄,曾楨,張訓械,張冬婭,肖存英;大氣GPS掩星觀測反演方法[J];地球物理學報;2005年04期

5 劉長江;衛(wèi)星地面站日凌日期的計算[J];電視技術(shù);1999年06期

6 黃棟，黃城，李金嶺，嚴豪健，虞南華;GPS無線電掩星技術(shù)監(jiān)測地球大氣[J];地球科學進展;1997年03期

7 李志剛;喬榮川;馮初剛;;衛(wèi)星雙向法與衛(wèi)星測距[J];飛行器測控學報;2006年03期

8 李贊;樊敏;李海濤;;太陽噪聲對地面站噪聲溫度影響分析[J];飛行器測控學報;2009年06期

9 劉鎮(zhèn),葉海智,蔣宇光;日凌干擾的線等效分析法[J];河南師范大學學報(自然科學版);1997年02期

10 劉劍,楊友民,黃國策,鄭秋容;日凌對衛(wèi)星通信系統(tǒng)的影響預測[J];空軍工程大學學報(自然科學版);2002年06期

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