Zobrazeno 1 - 10
of 246
pro vyhledávání: '"张薇"'
Autor:
张薇,阎涛
Publikováno v:
Zhongguo cuzhong zazhi, Vol 15, Iss 1, Pp 51-56 (2020)
Externí odkaz:
https://doaj.org/article/d702a16668e8434c8eb4888c553db635
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 26-29 (2016)
提出了一种60GHz毫米波、UWB(超宽带)信号和基带信号混合传输的光纤通信系统。在中心站采用10GHz RF(射频)信号驱动两个并行PM(相位调制器)产生三阶边带,在基站通过PD(光检测器)拍
Externí odkaz:
https://doaj.org/article/8185c868ede94ac0a61dde1d471be519
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 23-26 (2016)
APDCDM(双极性占空比复用)是降低DCDM(占空比复用)信号幅值级数的一种有效方法。为了进一步降低APDCDM信号的幅值级数,提出了基于信号替换原理的I-APDCDM(改进型双极性占空比复用)技术
Externí odkaz:
https://doaj.org/article/3f5a24cdce164bb9b2377fd002b734a0
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 33-35 (2016)
为产生全光域UWB(超宽带)一阶和二阶信号,降低光载UWB系统成本,提出了一种基于偏振调制同时光生一阶和二阶UWB信号的方法。将两路极性相反的高斯脉冲信号通过PolM(偏振调制器)相位调
Externí odkaz:
https://doaj.org/article/40a0d9134336409090ac1db01b8d2d2d
Publikováno v:
Tropical Geography. Oct2023, Vol. 43 Issue 10, p1986-2000. 15p.
Publikováno v:
Feed Research. 2023, Vol. 46 Issue 12, p181-185. 5p.
Publikováno v:
Journal of Modern Laboratory Medicine; May2024, Vol. 39 Issue 3, p60-66, 7p
Publikováno v:
Chinese Journal of Clinical Healthcare; Apr2024, Vol. 27 Issue 2, p157-161, 5p
Publikováno v:
Journal of Soochow University Educational Science Edition; 2024, Vol. 12 Issue 2, p117-128, 12p