期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
码分导频CDMA系统中低复杂度自适应MMSE均衡器设计 被引量:1
1
作者 曾嵘 李光球 《电路与系统学报》 CSCD 北大核心 2010年第2期33-38,共6页
在高速数据传输环境下,多径传播使得CDMA系统中的多址干扰(MAI)和码片间干扰(ICI)变得非常严重。本文利用最速下降法和快速傅立叶变换,提出一种码分导频CDMA系统中低复杂度自适应MMSE均衡器设计方法。在运算量大大降低的前提下,计算机... 在高速数据传输环境下,多径传播使得CDMA系统中的多址干扰(MAI)和码片间干扰(ICI)变得非常严重。本文利用最速下降法和快速傅立叶变换,提出一种码分导频CDMA系统中低复杂度自适应MMSE均衡器设计方法。在运算量大大降低的前提下,计算机仿真表明,本文提出的低复杂度自适应MMSE均衡器的性能接近于理想的码片级MMSE均衡器。 展开更多
关键词 码分导频 低复杂度 自适应MMSE均衡器 最速下降法 快速傅立叶变换
下载PDF
Classified-edge guided depth resampling for multi-view coding
2
作者 陆宇 周洋 陈华华 《Optoelectronics Letters》 EI 2016年第1期77-80,共4页
A new depth resampling for multi-view coding is proposed in this paper.At first,the depth video is downsampled by median filtering before encoding.After decoding,the classified edges,including credible edge and probab... A new depth resampling for multi-view coding is proposed in this paper.At first,the depth video is downsampled by median filtering before encoding.After decoding,the classified edges,including credible edge and probable edge from the aligned texture image and the depth image,are interpolated by the selected diagonal pair,whose intensity difference is the minimum among four diagonal pairs around edge pixel.According to different category of edge,the intensity difference is measured by either real depth or percentage depth without any parameter setting.Finally,the resampled depth video and the decoded full-resolution texture video are synthesized into virtual views for the performance evaluation.Experiments on the platform of multi-view high efficiency video coding(HEVC) demonstrate that the proposed method is superior to the contrastive methods in terms of visual quality and rate distortion(RD) performance. 展开更多
关键词 Codes (symbols) DECODING Electric distortion Median filters Signal distortion
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部