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Position: Home > Articles > Analysis of Spectral Characteristics of Fruit Trees Based on HJ Satellite Remote Sensing Data Xinjiang Agricultural Sciences 2011,48 (11) 1967-1973

基于HJ卫星遥感数据的林果光谱特征分析

作  者：
李雪;钟仕全;王蕾;彭波;冯志敏
单  位：
南京信息工程大学遥感学院;广西壮族自治区气象减灾研究所/国家卫星气象中心遥感应用试验基地;新疆维吾尔自治区气候中心;广西师范学院
关键词：
HJ卫星;林果;光谱特征
摘  要：
【目的】利用卫星遥感数据分析林果与其他地物的差异,并对林果中的苹果、香梨、核桃、红枣四种果树之间的差异性进行试验性研究,为林果区提取和果树树种识别提供理论依据。【方法】以新疆阿克苏市为研究区,以HJ卫星数据为数据源,结合当地实地调查资料,采用光谱分析法、归一化差值植被指数(NDVI)时序数据变化分析方法以及微分变换(d1[log(1/Rλ)])方法,对林果与其他地物的差异性和果树之间的差异性进行分析。【结果】(1)林果与其他地物在5月时相上的差异显著;(2)4和11月两个时相上的微分变换数据显示,红枣和核桃与其他两种果树差异明显,苹果和香梨相近。【结论】(1)利用HJ星遥感数据能对林果区进行准确提取;(2)利用HJ-CCD数据可以识别红枣和核桃,苹果和香梨的识别较难,有待进一步研究。
译  名：
Analysis of Spectral Characteristics of Fruit Trees Based on HJ Satellite Remote Sensing Data
作  者：
LI Xue1,ZHONG Shi-quan2,WANG Lei3,PENG Bo4,FENG Zhi-min3(1.School of Remote Sensing,Nanjing University of Information Science & Technology,Nanjing 210044,China;2.Guangxi Institute of Meteorology,Nanning/Remote Sensing Application and Test Base of National Satellite Meteorology Centre,Nanning 530022,China;3.Climatic Center of Xinjiang,Urumqi,830002,China;4.Guangxi Teachers'University,Nanning 530001,China)
关键词：
HJ;fruit trees;spectral characteristics
摘  要：
【Objective】 The purpose of this project was to analyze the differences between fruit trees,such as apples,pears,walnuts and jujubes and other surface features.Some experimental researches into these differences have been done based on HJ satellite data,thus providing a theoretical base for the extraction of fruit trees and the identification of species.【Method】With field survey data in Aksu area and basing on the HJ satellite data,the difference was analyzed by spectral analysis method and normalized vegetation index(NDVI) time series data during the growth period and derivative transformation(d1[log(1/Rλ)]) method.【Result】(1) The difference between fruit trees and other surface features was significant in the image which was imaged in May;(2) By derivative transforming,the data,their imaged times were in April and November,which showed that walnut and jujube trees had some different characteristics from the other fruit trees,but there was not significant difference between apple and pear trees.【Conclusion】(1) The fruit trees messages can be extracted accurately based on HJ satellite data;(2) Walnut and jujube trees can be identified by HJ-CCD data,but it's rather difficult to identify apple and pear trees.So it need further study.

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