1) spectrum handoff
频谱切换
1.
In cognitive radio communication system,secondary user has to vacate current channel while primary user appears in the occupied spectrum,which is called spectrum handoff.
在认知无线电通信系统中,当主用户出现在授权频谱时,认知用户必须及时空出该频段,这个过程称作频谱切换。
2) Switching for Frequency
换频切换
1.
Study Switching for Frequency of Pilot Beacon on CDMA Network Optimization
基于CDMA网络优化之伪导频(Pilot Beacon)的换频切换技术探析
3) switching frequency
切换频率
1.
Adjusting the switching frequency at which the signal is time-division transferred, the basic frequency signal is transferred through n branches within one signal cycle efficiently, and each branch works for a fixed 1/n of the signal period.
调控电路分时传递的切换频率,将主频信号在一周期内由n条支路在其固定的1/n时段分时有效地传递,其合成即为滤波器传递的主频信号。
2.
In this paper,first of all,we study the stabilization of the switched linear systems composed of stable subsystems by means of the switching frequency.
在本文中,首先我们利用切换频率研究了由稳定子系统组成的切换系统的稳定性;然后在对规范切换系统的稳定性研究的基础上,研究了由稳定子系统组成的相似规范切换系统、正定相似规范切换系统的稳定性。
4) audio switch
音频切换
1.
According to the analysis of computer audio and video signals, the circuits of center control module, VGA switch module, audio switch module and volume regulate module have been given in detail, meanwhile the work principle is also expatiated.
通过对计算机音/视频信号的分析,详细给出了中心控制模块、VGA视频切换模块、音频切换模块以及音量调节模块等电路,并阐述了其工作原理。
2.
In this paper,we introduced the video and audio switch system of multimedia central controller which based on ARM,present the principle、design project、software model and hardware model of multimedia video and audio switch.
该文介绍了基于ARM的多媒体中央控制器的视音频切换系统,着重阐述了多媒体中央控制器视音频切换系统的原理、设计方案、硬件模块和软件模块的实现方法。
5) Horix to exchange
行频切换
6) channel switch
频道切换
1.
The crucial technology is discussed such as channel switch.
讨论了频道切换等关键技术,并设计与实现了利用组播的频道切换机制。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条