satellite models 中文意思是什麼
satellite models
解釋
衛星模型-
Using the data of gravity field parameter variations observed by grace, and mean sea level variations observed by satellite altimetry removed steric sea level changes calculated from the numerical ocean models, global ocean mass change is studied
利用grace衛星觀測得到的重力場系數變化資料及重力衛星測高得到的海平面變化扣除由模式得到的熱容海平面變化，研究了海水的質量變化。 -
It contributes to the deeper comprehesion of these probability distributions, affords more detailed theoretical basis for further studying and simulating satellite mobile channels, ? theoretical analyses and discussions of the models which are often used in the study of the propagating characteristics of satallite mobile channels are given ; meantime, some discussions on the work of model simulations are also given, ? incorrect derivation of the equality between c. loo model and corazza model in some other papers is pointed out. via the conception of received power, we derivate that in the rural environments these two models really have the equal relationship by the way of theoretical derivation and simulatant fittings. therefore, it is able to use corazza model in studying the characteristics of satellite mobile channels in the rural environments and able to avoid the iterant work of modeling, in order to enhance the efficiency and accuracy of research work, ? detailed processes of simulating lutz model by using matlab6. 0 _ simulink4. 0 and the results of comparisions are given
本文包含有以下的主要內容： ?對衛星移動通信通道傳播特性研究中常用的三個概率分佈給出了詳細的推導過程；以便對這幾個在衛星移動通信通道傳播特性的研究中常用的概率分佈函數有更深的理解，對進一步研究衛星移動通信通道傳播特性和對通道的建模提供了更為詳盡的理論基礎； ?對衛星移動通信通道傳播特性的研究中常用的通道模型進行了理論上的分析和討論，並對衛星移動通信通道建模的研究工作提出了一定的看法； ?指出了以前的文獻中關于c . loo模型和corazza模型的等同性的證明錯誤；並從接收信號功率的角度出發，通過理論推導及模擬曲線擬合重新證明了在鄉村環境下，這兩個模型的確是具有等同性的；從而在對鄉村環境下的衛星移動通信通道傳播特性進行研究時，可以只採用corazza模型來對實際的通道進行建模，這樣可以避免重復的建模工作並提高研究工作的效率和準確性； ?給出了lutz模型在matlab6 . 0 _ simulink4 . 0環境下的軟體模擬實現的詳細過程和整體模擬測試的對比結果，保證了該模型在硬體實現時的可靠性和可行性，從而可以將它們應用於指導模型的硬體模擬實現並可以降低硬體實現時的風險。 -
Based on the geometry between sunshine ray and real terrains, the distributed models were developed to simulate the extraterrestrial radiation and possible sunshine duration over rugged terrains respectively. according to the principles of direct and diffuse radiation on tilted surfaces, the distributed models to estimate the direct and diffuse radiation over rugged terrains were developed also. the proposed models were proved to be able to treat volumes of data and are applicable to satellite image processing platforms or geographic information system ( gis )
起伏地形下太陽輻射分散式模型研究根據太陽光線與實際地形之間的幾何關系，建立了起伏地形下天文輻射、可照時間的分散式估算模式；依據坡地直接輻射和散射輻射機理，分別建立了起伏地形下直接輻射、散射輻射的分散式估算模式；建立的分散式模式計算結果可靠，可進行大數據量處理，適用於遙感圖像處理、地理信息系統等數據處理平臺。 -
Modeling the trajectories of satellite - tracked drifters with regression models
利用回歸模型模擬衛星跟蹤海洋漂流浮標軌跡 -
The channel models for land mobile satellite in shadowing environment
陰影環境下陸地移動衛星通道的模型研究 -
( 3 ) two kinds of non - linear models to retrieve the relative humidity with geostationary meteorological satellite infrared data were developed
（ 3 ）利用兩種非線性方法，建立了氣象衛星資料反演大氣濕度場的數學模型： a ） -
Firstly, this paper presents the coordinates and time system for discribing satellite motion, and then gives the models of orbit and attitude and satellite relative motion, considered the j2 perturbation
本文首先給出描述衛星運行所需的時間系統和坐標系，然後建立衛星軌道、姿態動力學模型和基於軌道根數的衛星編隊飛行相對運動方程，並考慮j2項攝動的影響。 -
We established mathematic models of the sensor scheduling for missile early satellite based on the technical characteristics of missile early satellite and the analysis to sensor scheduling
摘要從導彈預警衛星的技術特點出發，通過對傳感器調度分析，建立了相應的數學模型。 -
In order to study small satellite attitude control system, the author first establishes the small satellite dynamics, kinematic models, and gives the theories of the quarternion, then study in - depth of the principles of the active magnetic control
為研究主動磁控小衛星姿態控制系統，首先建立了主動磁控小衛星動力學、運動學模型，並給出了姿態四元數的相關理論。從地磁場模型出發，深入研究了主動磁控的原理。 -
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。 -
Successive regression on relative humidity and infrared data of geostationary meteorological satellite was made with non - linear transitions after optimal fittings taken from 48 functions. to avoid the over - fitting phenomenon, the stable and best - fitted models were adopted, c )
而且由於質量控制的作用，反演濕度場與原濕度場有較大的一致性，與其它要素分佈保持動力與熱力匹配，從而有利於模式運行的穩定性。 -
2. to simulate accurate raw data of spaceborne sar, models of satellite with elliptical orbit and targets with rotation of the earth are adopted in the process of calculating between the satellite platform and target
為了模擬得到精確的星載sar原始數據，本文在計算各時刻星載sar平臺與目標的距離時，採用了精確的數學模型：其中星載sar平臺運動軌跡採用橢圓軌道模型，地球採用橢球體模型。 -
Using quaternion as attitude representation, the attitude kinematics function is established. 2. several kinds of disturbance torques affecting the satellite attitude are directly computed through the models described in the paper, forming a closed loop stabilization system dumped by magnetic torques and provided with initial torques through flywheels, but other simulations only estimate it by experience
（ 2 ）很多模擬是根據經驗估算衛星所受的干擾力矩，本文以某對地觀測小衛星為背景，利用所建力學模型對衛星所受數種干擾力矩進行計算，形成了一個以飛輪作為主動力矩、通過磁力矩卸載的閉環而且穩定的姿態控制系統。 -
This paper introduces the application for digital landslide technique through 4 examples ： three dimensional landslide models for jinlong mountain ； satellite monitoring yigong landslide ； study for landslides in key towns of the three gorges ； qianjiangpin landslide
通過金龍山三維數字模型，衛星監測易貢滑坡、三峽庫區重點城鎮滑坡及千將坪滑坡等地的遙感調查說明數字滑坡技術的實際應用。 -
There are now hundreds of models under development, from vast flying wings intended to stay aloft for five years using solar power ( acting more like a satellite than a plane ) to tiny bug - like flying machines that could swarm and interact wirelessly
如今有成百上千的模型正在研發中，范圍大到巨型的飛機連，並藉助太陽能在高空飛行五年之久（與其說是飛機，那不如說是類似衛星） ，小到微型的類似昆蟲的飛行機器，能上天下海且能通過無線聯系。 -
For the road targets detection, on the basis of the extraction of road features, this thesis probes road models with different satellite resolutions and scene types, as well as the automatic road detection and recognition. thus, it proposes an expert system that can recognize all types of roads
在道路目標識別中，本文研究了道路特徵提取的基本思路；不同衛星解析度和不同場景模型下的道路模型；自動道路特徵提取和識別演算法；最後提出了一種自動辨識所有道路模型的專家系統的框架。
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