directional projection 中文意思是什麼
directional projection
解釋
定向投影- directional : adj. 1. 方向的。2. 【無線電】指向的，定向的。
- projection : n 1 射出，投擲，發射，噴射。2 投射；投影，投影法；（地圖）投影圖製法；【電影】放映。3 凸出；凸出...
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Used perturbed method and making inexact generalized gradient projection with cone, perturbed generalized gradient projection method is proposed. the field of the algorithm is extended. numerical experiments show that the method is effective. secondly, using the trust region form and the pseudo - directional derivative of minimax problem, we propose the trust region form of minimax problem
對信賴域法作了進一步的研究，藉助minimax問題的偽方向導數，構造出其信賴域二次模型，並結合非單調策略，給出求解minimax問題的簡單易行的信賴域演算法。 -
The multi - directional projection pursuit and the feature extraction of hyperspectral remote sensing image
多方向投影尋蹤與高光譜遙感圖像特徵提取 -
At first, this paper brings forward its investigative intent and meanings and introduces the features, the basic contents and developing status, etc. gis, as a kind of decision - making and supporting system, is based on geographic spatial database and timely provides many kinds of spatial and dynamic geographic information for serving for geographic research and decision - making ; it discusses and analyses map projection of gis and finds the two directional computation for gauss - kruger can make up the lacks of gis in map projection
本文首先提出研究的目的和意義，介紹gis的特點、基本內容及其發展狀況等；地理信息系統作為一種決策支持系統，以地理空間數據庫為基礎，實時提供多種空間的和動態的地理信息，為地理研究和地理決策服務；探討和分析gis中的地圖投影，發現高斯-克呂格正反算可以彌補gis系統在地圖投影上的不足。
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