satellite elevation 中文意思是什麼

satellite elevation 解釋
衛星仰角
  • satellite : n 1 【天文學】衛星；人造衛星；〈比喻〉衛星國。2 隨從，幫閑者，食客。3 【生物學】隨體（指染色體）...
  • elevation : n. 1. 高舉，高陞；【醫學】挺起，隆腫。2. 升級；上進，向上。3. 高尚。4. 高處，高地，高度；海拔；（槍炮的）仰角，射角；【測】標高。5. 【建築】正視圖；立視圖。
  1. According to the data of infrared nephogram of satellite, provides the concept of demct ( digital elevation model of cloudy top ), studies the technology of modeling of the surface of demct. 3. the arithmetic of triangulated network of 3d - visulazation of cloud

    2 .根據雲圖三維表現原理，從二維紅外衛星雲圖得出雲頂表面高度值，獲取雲的三維信息，類比地形數字高程模型，提出了雲頂數字高程模型（ demct ）的概念。
  2. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。
  3. By calculating parameters including the link length, the azimuth angle, the elevation, the optical power that the inter - satellite optical cdma communication system will receive, the variation range of the azimuth angle and the elevation from the optical antenna of atp are understood well. by analyzing the factors to impact bit - error - rate ( ber ) from the received power, multi - user disturbing, background noise, wavelength, bit rate etc, measures to guarantee high performances of the system are obtained, especially those for smoothing the fluctuation of the received optical power from host platform vibration

    分析研究了衛星光cdma通信系統中衛星仰角、方位角和距離，給出了探測器能夠接收到的光功率以及atp子系統捕獲及跟瞄的范圍;對衛星光cdma通信系統性能模型和基於衛星振動系統性能模型的研究，分析了多用戶干擾、接收光功率、背景光噪聲、振動偏差以及碼速率對系統誤碼率的影響，給出了相應的改進措施。
  4. Satellite laser altimeter return waveform is sensitive to the vertical canopy structure and the change of underlying ground elevation. it is optimal for mapping forest structure. the return waveform and the processing method are described. the relationship between laser waveform and canopy structure parameters is explored ignoring the clumping effects. the clumping caused that structure parameters are different from the actual value. to solve this question, a model by 3 - d canopy structure parameters is needed

    星載激光測高儀的回波信號能夠靈敏反映地面植被組成和地表高度的變化，因此能夠用於探測森林地貌;首先對星載激光測高儀的森林回波信號及其處理方法進行了介紹，探討了在不考慮植被聚集情況下，植被組成與回波信號之間的關系;由於植被的聚集效應，例如樹葉群集成樹冠，會導致植被組成參數與真實值之間存在差異，這需要建立關於三維的空間分佈模型加以解決。
  5. Reasonable digital models and organization methods are the basic premise to digital power transmission network. this thesis discusses the classification of relevant data and the corresponding disposition methods. it provides multi - scale and multi - level digital models, and realizes the management of digital elevation model, satellite imaging, aerial photos, surface features

    合理的數據模型及組織方法是構建「數字輸電網路」的基本前提，本文討論了相關數據的分類及對應的處理方法，提出了多比例尺多層次的數據組織模型，較好地解決了數字高程模型、衛星照片或航拍照片、地表特徵物等海量數據的管理。
  6. The northern part of ailao mountain, located in the middle of yunnan province, was selected as study area. based on three landsat mss / tm / etm satellite images, as well as “ 3s ” technology combining with the method of mathematical statistics, the objective of this paper was to analyze the law of spatial ( gradient, slope orientation and elevation ) and temporal changes in land use / land cover on the northern part in the periods of 1974 1987 and 1987 2003. and analyzes land use / land cover change character in nature reserve and its meighbour region within the confine of the study area

    本文選擇滇中哀牢山北段作為研究區域，以1974年mss影像， 1987年tm影像和2003年etm影像為主要數據源，運用「 3s 」技術，並結合統計分析，探討研究區1974 1987年、 1987 2003年間土地利用的時間和空間（坡度、坡向、海拔）變化規律，並分析了研究區內的自然保護區及其周邊土地利用/覆蓋變化特徵，以期為山地土地資源的可持續利用和生態保護等方面提供依據。
  7. Performance improvement and simulation for mobile satellite communication systems at low elevation angle

    小仰角下移動衛星通信性能的改善及模擬
  8. The geostationary satellite positioning system with two satellites is a region, 2d and approximately real time positioning system, and obviously, the key to it ' s application is how to get the digital elevation model with sufficient accuracy

    雙星定位系統是我國自行研製和開發的區域性、二維、準實時定位系統，其應用的關鍵是獲取一定精度要求的數字高程模型。
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