This paper employs differentiation transformation and the method of differentiating completely homogeneous coordinate transformation to set up errors equations group , the discussion of the errors of double - triangle pkm is conducted 本論文應(yīng)用微分變換和齊次坐標(biāo)變換的全微分建立誤差方程組,討論了雙三角形并聯(lián)機(jī)構(gòu)的位姿誤差分布。
This article uses the modem consumption theory to study chinese fanner ' s consumer behavior and sets up error - correction model as econometric model on the basis of implementing stationarity test to the data of the model , and concludes that the uncertainty , excess sensitivity and the fanner ' s life - cycle characteristic are important factors to affect fanner ' s consumer behavior 摘要本文運(yùn)用現(xiàn)代消費(fèi)理論對(duì)中國(guó)的農(nóng)民消費(fèi)行為進(jìn)行研究,在對(duì)模型的數(shù)據(jù)進(jìn)行平穩(wěn)性檢驗(yàn)的基礎(chǔ)上,建立誤差修正模型作為計(jì)量模型,認(rèn)為農(nóng)民面臨的不確定性、農(nóng)民消費(fèi)的過度敏感性和農(nóng)民消費(fèi)行為的生命周期特征是影響農(nóng)民消費(fèi)行為的重要因素。
Two methods have been proposed and applied : setting up error model by time series analyzing , displaying vehicle tract by map matching . digital map and software for the paper have been designed by gis tool and high language , software can receive nmea sentence , process gps data and display the vehicle track on the digital map 論文根據(jù)車輛定位系統(tǒng)的功能要求設(shè)計(jì)了軟件系統(tǒng),實(shí)現(xiàn)了在計(jì)算機(jī)上接收gps接收機(jī)輸出,對(duì)原始gps數(shù)據(jù)進(jìn)行處理和輸出;采用gis開發(fā)工具設(shè)計(jì)了數(shù)字地圖,設(shè)計(jì)多個(gè)圖層,建立路段數(shù)據(jù)庫,應(yīng)用投影匹配方法將車輛位置軌跡顯示在數(shù)字地圖上。