也谈“多就少改”     

宋文涛 《中国编辑》2007,(5):19-20,22

在现代编辑活动中，作为编校原则之一的“多就少改”一语时常被人挂在嘴边，其意泛指多遵从原文，而不轻于臆改，这就为一些怠于编校的编辑者提供了借口。书稿如经他们之手，往往是囫囵吞枣、草草一过，等而下者甚至未待寓目即告编毕校罄，即使鲁鱼弥望亦漫不经心。另一方面，逞臆增删修改的好事者颇喜对书稿施以手段，甚者几乎到了偏执的程度，完全不尊重书稿的作者和原貌，结果弄巧成拙，乌焉成马。  相似文献   

Time-domain clustered transmit power adaptation for OFDM system in fading channels     

甘小莺  徐友云  管云峰  宋文涛 《浙江大学学报(A卷英文版)》2006,7(2):135-140

INTRODUCTION The growing demand for wireless multimedia services requires reliable and high data rate commu- nications over a wireless channel. However, the reli- ability is significantly limited by the ability of com- bating the intersymbol interference (ISI) introduced by the time dispersive nature of the wireless channel. Multicarrier transmission systems, especially OFDM systems, have aroused great interest in recent years as a potential solution to overcome ISI (Hanzo et al., 200…  相似文献   

An improved channel estimation with multipath search for MIMO-OFDM systems     

侯晓赟  郑宝玉  徐友云  宋文涛 《浙江大学学报(A卷英文版)》2006,7(2):149-155

INTRODUCTION Multimedia wireless services require reliable high-bit-rate transmission over mobile radio channels. One of the challenges in designing such systems is the mitigation of fading propagation effects within the prescribed bandwidth and power limitations. Multi- ple-input and multiple-output (MIMO) techniques can be implemented to obtain a capacity gain in rich scattering environments without increasing the bandwidth or transmit power and/or to obtain the diversity gain to comba…  相似文献   

浅议地质勘查技术的原则与方法     

宋文涛  陈兵 《黑龙江科技信息》2013,(24):126-126

地质勘查工作是对地质进行测量和整理的过程,关系着地质工作的方方面面,起着重要的作用。在科技不算发展进步的同时,地质勘查技术也有了新的改进和提高,为了更好的开展地质勘查工作的进行,在技术的原则与方法上也需要相应的有所改进。本文主要通过对地质勘查工作的研究,全面的分析地质勘查技术中存在的问题,同时针对出现的问题提出相应的解决办法,以达到更好的勘查效果。  相似文献