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Excel表格在苗家坝水电站对外公路改线计算中的应用
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作者 刘勇 范志伟 《科技信息》 2008年第30期55-55,27,共2页
水电站进场公路由于工期紧、勘测设计时间短,路线往往与公路实际选线的地形地貌不符,在施工过程中不可避免的要遇到路线修改问题。本文主要对改线过程中的参数计算方法进行了讨论。
关键词 EXCEL表格 对外公路 改线计算 应用
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Improved DOA Estimation Algorithm with Sensor Array Perturbations for CDMA System
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作者 杨维 程时昕 《Transactions of Tianjin University》 EI CAS 2003年第1期11-15,共5页
An improved direction of arrival (DOA) estimation algorithm with sensor gain and phase uncertainties for synchronous code division multiple access(CDMA) system with decorrelator is presented. Through decorrelating pro... An improved direction of arrival (DOA) estimation algorithm with sensor gain and phase uncertainties for synchronous code division multiple access(CDMA) system with decorrelator is presented. Through decorrelating processing DOAs of the desired users can be estimated independently and all other resolved signal interferences are eliminated. Emphasis is directed to applications in which sensor gain and phase are perturbed that often happen actually. It is shown that improved DOA estimation can be achieved for decoupled signals by gain and phase pre estimation procedures. 展开更多
关键词 antenna array CDMA DOA estimation PERTURBATIONS
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