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4篇 您的检索式:作者名="YAO Binyan"
    题名 作者 年代 出处 被引量
1Validation methods of LAI products on the basis of scaling effect显示文摘Validation is one of the most important processes used to evaluate whether remotely sensed products can accurately reflect land surface configuration. Leaf Area Index( LAI) is a key parameter that represents vegetation canopy structures and growth conditions. Accurate evaluation of LAI products is the basis for applying them to land surface models. In this study,validation methods of coarse resolution MODIS and GLASS LAI products for heterogeneous pixels are established on the basis of the scaling effect and the scaling transformation. Considering spatial heterogeneity and growth difference,we transformed LAI from field measurements into a 1 km resolution scale with the aid of middle resolution images. We used average LAI and apparent LAI separately to validate the algorithms and products of MODIS and GLASS LAI. Two study areas,Hebi City and the Yingke Oasis,were selected for validation. Both MODIS and GLASS LAI products underestimate the true LAI in crop area. However,this result cannot be completely attributed to their algorithms. Instead,the primary reason is the heterogeneity and nonuniformity of the coarse pixels.Underestimation is evident in the Yingke Oasis,where heterogeneity is significant. Given that GLASS LAI product is the fusion of multiple LAI products,the mean value of this product is closer to the real situation,but the dynamic range is narrower than that of MODIS LAI product.LIAO Yanran GAI Yingying YAO Yanjuan FAN Wenjie XU Xiru YAN Binyan 2015遥感学报2015,19,1:2
2Compact UWB band-pass filter with improved up- per-stopband performance 显示文摘YAO Binyan ZHOU Yonggang CAO Qunsheng 2009IEEE Microwave and Wireless Components Letters2009,19,1:1
3A NOVEL ULTRA WIDEBAND MONOPOLE ANTENNA WITH BAND-NOTCHED CHARACTERISTICS显示文摘A simple and compact microstrip-fed Ultra WideBand(UWB) printed monopole antenna with band-notched characteristic is proposed in this paper.The antenna is composed of a square ring with a small strip bar,so that the antenna occupies about 7.69 GHz bandwidth covering 3.11~10.8 GHz with expected band rejection from 5.12 GHz to 5.87 GHz.A quasi-omnidirectional and quasi-sym-metrical radiation pattern is also obtained.This kind of band-notched UWB antenna requires no ex-ternal filters and thus greatly simplifies the system design of UWB wireless communication.Deng Hongwei He Xiaoxiang Yao Binyan Zhou Yonggang 2009Journal of Electronics(China)2009,26,2:0
4The carboxypeptidase D homolog silver regulates memory formation via insulin pathway in Drosophila显示文摘Lu, Binyan Zhao, Yi Zhao, Jie Yao, Xiaoyang Shuai, Yichun Ma, Weiwei Zhong, Yi 2016Protein & Cell2016,7,8:0
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