1) cooperative spectrum sensing
协作频谱感知
1.
Two novel cooperative spectrum sensing schemes based on AF(Amplify and Forward) and DF(Decode and Forward) protocols were proposed to achieve spatial diversity gains in cognitive radio networks,which were referred to as AF-CSS(AF-based Cooperative Spectrum Sensing) and DF-CSS(DF-based Cooperative Spectrum Sensing) respectively.
由此,提出了2种基于放大重传和解码重传的协作频谱感知方案,并且在瑞利衰落环境下对所提方案的检测概率性能进行了理论分析,给出了非协作感知和协作感知的检测概率的解析表达式。
2.
In this paper, the definition, research situation of cognitive radio and the important function of cooperative spectrum sensing are introduced.
该算法基于最优功率分配和协作分集,根据信道条件利用奇异值分解在每根天线上进行功率注水,并考虑多天线情况下两用户网络协作频谱感知授权用户的判决检测过程,利用基于指数衰减的路径损耗模型,分析多天线感知网络的各态历经容量和检测授权用户的概率及时间。
3.
Spectrum sensing is a key technology in Cognitive Radio(CR) and cooperative spectrum sensing is derived due to the effects of channel fading.
协作频谱感知技术是认知无线电中的重要技术。
2) censor-based cooperative sensing
检查协作频谱感知
1.
Appropriate sensing thresholds can be achieved by optimal no decision probability to perform censor-based cooperative sensing.
作者提出采用检查协作频谱感知可以有效避免这些问题。
3) cooperative spectrum sensing
合作频谱感知
1.
This paper presents cooperative spectrum sensing in order to optimize the sensing performance.
本文提出合作频谱感知以优化感知性能。
2.
Cooperative Spectrum sensing is a key technology in cognitive radio.
论文主要介绍了2个次级用户合作频谱感知之间的DF协议,并在检测概率与中断率上与AF协议进行比较。
4) spectrum sensing
频谱感知
1.
Constraints of allowable power density for cognitive radio network based on spectrum sensing information;
基于频谱感知信息的认知无线电网络功率密度约束问题
2.
Cooperative spectrum sensing algorithm based on dempster-shafer theory in cognitive radio networks;
基于证据理论的协同频谱感知算法
3.
Cooperative MIMO spectrum sensing based on random matrix theory;
基于RMT的协作MIMO频谱感知
5) collaborative awareness
协作感知
1.
Role-based hierarchical collaborative awareness model for synchronous cooperation;
基于角色的层次型同步协作感知模型
2.
Research on hierarchical collaborative awareness model on CVE;
协同虚拟环境分层协作感知模型研究
3.
Collaborative Awareness technology is one of the key technologies in VST.
虚拟空间会议系统中的关键技术之一就是协作感知技术,协作感知是为了解决如何在计算机支持的虚拟协作环境中建立接近于现实世界中的感知环境和感知信息的传递方式,让虚拟世界更加真实,让协作过程更加自然和有效率。
6) collaboration awareness
协作感知
1.
The special structure of spatial data and long-duration transaction at GIS,making the traditional concurrency control strategy of multi-version and lock do not satisfy with the collaboration awareness by multi-user in cooperative GIS.
空间数据的特殊结构及GIS的长事务特点,传统的加锁和多版本并发控制策略不能很好的满足协同GIS中多用户协作感知的要求。
2.
The traditional concurrency control strategy does not satisfy the collaboration awareness of multi-users in cooperative GIS.
随着传统GIS向网络GIS的发展,地图的更新通常需要网络中多个站点相互协作完成,传统的并发控制策略不能很好满足协同GIS中多用户协作感知的要求。
补充资料：倍频谱带
分子式：
CAS号：
性质：又称倍频谱带。红外光谱分析中的一种谱带；指某个吸收频率为基谐振动频率的2倍或3倍时的吸收带。它的产生是由于两个原子核间的库仑排斥力使振动频率发生了异常变化的结果。泛频带的吸收强度往往很低，因此这个吸收带有时测不出来。
CAS号：
性质：又称倍频谱带。红外光谱分析中的一种谱带；指某个吸收频率为基谐振动频率的2倍或3倍时的吸收带。它的产生是由于两个原子核间的库仑排斥力使振动频率发生了异常变化的结果。泛频带的吸收强度往往很低，因此这个吸收带有时测不出来。
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