EVM是 Error Vector Magnitude 的缩写,中文意思就是误差矢量幅度。
2023-07-17 09:31
误差矢量幅度(Error Vector Magnitude,EVM)是衡量无线通信系统中信号质量的一个重要指标。
2024-01-02 09:20
current-sense amplifier and differential amplifier are combined to produce a single output voltage that indicates magnitude and direction o
2009-05-04 08:45
current-sense amplifier and differential amplifier are combined to produce a single output voltage that indicates magnitude and direction o
2009-04-30 11:55
Abstract: Using a preamp to increase the output magnitude of a J-type thermocoupler. The simple
2009-05-07 10:35
本文拟以凌华科技最近推出的PXI-9820 高速数据采集卡为核心,设计一套成本低廉、 功能弹性且适于大量复制的WLAN发射模块实时误差向量幅度(real-time Error Vector Magnitude, EVM)测试系统
2011-11-04 17:35
。不同的占空比会对无线电通信中的EVM和ACLR测试结果产生影响。 EVM是误差向量幅度调制(Error Vector Magnitude)的缩写,用于衡量在数字通信中由于干扰,多径等造成的调制信号与原始信号之间的误差量。EVM数值越小,表示信号品质越好。ACLR则是带外
2023-10-20 15:08
最关注的指标就是EVM(Error Vector Magnitude,矢量幅度误差),采用互相关技术测量的EVM,成为ccEVM。 本期小K技术漫谈会聚焦以下话题 什么是互相关技术? 互相关技术在宽带
2023-11-15 07:40
of magnitude lower power than their more complex and higher performing counterparts designed
2019-01-16 01:06
is proportional to the magnitude of relative humidity and the length of exposure. In the case
2019-01-15 23:09