外文(数据库)信息检索的检索报告.docx

关于外文（数据库）信息检索（2）的检索报告
1106班 学号 2011100629 姓名丁颖
摘要：熟悉 google scholar 的基本情况；掌握其检索方法、提高查全率和查准率的方法 以及通过与实验9 比较，自己总结两种检索的优劣ascular Surgery, 1999 - Elsevier
Purpose: The purpose of this study was to estimate the in fluence of a screening program on the incidence and mortality of ruptured abdominal aortic aneurysms (RAAAs). Methods: The effects of screening on the incidence and death rate of RAAAs were investigated with a
图 2 高级检索页面
3、在高级检索页面中对 analog signals 和 digital signals 进行“与、或”检索
四、检索结果
在首页检索
Google
analog signals ▼
学术搜索
據到约2,340,000条结果（〉
时间不限
2013以来
2012以来
2009以来
自定义范園
小提示：只搜索中文（育体）结果，可在学术搜索设蛊指定搜索语言
按相关性排序 按日期排序
搜索所有网页 中文网页
简体中文网页
丁包括专利 丿包含引用
ra创翟快讯
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From theory to practice Sub・NYQuist sampling of sparse wideband analoq siqnals M Mishali, YC Eldar -... in Signal Processing, IEEE Journal of, 2010 - Abstract Conventional sub-Nyquist sampling methods for analog signals exploit prior information about the spectral support. In this paper, we consider the challenging problem of blind sub-Nyquist sampling of multiband signals, whose unknown frequency support 械引用次数：267相关文章 所有11个版本 引用
Blind multiband siqnal「econst「uctioir Compressed sensing fo「analoq siqnals M Mishali. YC Eldar - Signal Processing. IEEE Transactions on, 2009 - Abstract We address the problem of reconstructing a multiband signal from its sub-