By using the normalized difference vegetation index extracted from CBERS-02 data and the leaf area index data obtained from field measurement, this paper analyzed the relationships between the NDVI and the LAI of total samples of meadow, marsh vegetation, shrubs, and islanded forests of the wetland vegetation in Honghe Nature Reserve of Sanjiang Plain. The linear and non-linear regression models between NDVI and LAI of different wetland vegetation types were established, and the spatial distribution of LAI in the Honghe Nature Reserve was mapped.

利用中巴資源衛(wèi)星CBERS-02影像提取的歸一化植被指數(shù)和同期野外實(shí)測(cè)的葉面積指數(shù)數(shù)據(jù)亚洲白白发布，分析了三江平原洪河自然保護(hù)區(qū)草甸4455vw永久在线、沼澤植被浓毛少妇牲交、灌叢和島狀林4種濕地植被及樣本總體的NDVI與LAI之間的相關(guān)關(guān)系肏屄视大全，建立了NDVI與不同濕地植被類型葉面積指數(shù)間的線性和非線性回歸模型色玖玖精品视频，并制作完成洪河自然保護(hù)區(qū)LAI空間分布圖又爽又大。

The study result shows that the measurement accuracy of the system is up to 0.2mm in 6m×5m×4m spatial region. The difference between industrial surveying system and dial gauge is within 20 percent .

研究結(jié)果表明，在6m×5m×4m的空間區(qū)域內(nèi)毛片网站毛片网站，此系統(tǒng)測(cè)量精度均優(yōu)于±0.2mm国产激情黄色视频，與百分表測(cè)試值對(duì)比，其差值小于20%久久无码AV三级，所得結(jié)果可信可靠国产人伦激情在线观看三级。

The measurement model for the retardation distributing of the quarter wave plate was introduced by Muller matrix and Stokes parameter. And four patterns with phase shifting of 90°in turn were eatched simultaneously by an especial spatial splitting phase-shifter.

1／4波片相位延遲分布的動(dòng)態(tài)測(cè)量，通過密勒矩陣和斯托克斯參量法對(duì)一種1／4波片的相位延遲分布的測(cè)量模型進(jìn)行了推導(dǎo)黄片ftp，并設(shè)計(jì)出一種空間分光移相器日韩一级操逼黄片，取代一般測(cè)量系統(tǒng)中的檢偏器，使得系統(tǒng)能于瞬間同時(shí)采集四幅具有90°移相步長的干涉圖全部H视频，避免了環(huán)境振動(dòng)對(duì)測(cè)量的影響欧美老妇爱操，從而可以對(duì)1／4波片的相位延遲分布進(jìn)行動(dòng)態(tài)在線測(cè)量。

The analysis of 3D noise indicates that the measurement is effective. Two MRC models of ICCD imaging system has been established based on system performance of energy and modulation transfer whose target is three-bar. One MRC model is under the condition of standard A lamp, and the other is under the condition of night photo-spectrum. Because the MRC models integrate sensitivity, noise, target spatial frequency, MTF and the performance of human eye all together, the MRC models can evaluate limit performance of photoelectric imaging system more roundly.

在系統(tǒng)能量傳遞特性和調(diào)制傳遞特性的基礎(chǔ)上一级无码午夜在线观看，以三條帶圖案為研究對(duì)象人人操人人干95，從信號(hào)轉(zhuǎn)換的角度出發(fā)，圍繞每景象立體弧度角中ICCD的電子通量www.天天激情网.com，建立了基于量子噪聲和CCD噪聲特性的微光ICCD成像系統(tǒng)MRC模型aa性欧美老妇人性交免费网站，MRC模型綜合了系統(tǒng)靈敏度和噪聲、目標(biāo)空間頻率亚洲玖玖爱、系統(tǒng)調(diào)制傳遞特性以及人眼視覺特性等因素在线看片国产无码图片，能更全面地反映光電成像系統(tǒng)的極限性能。