high frequency efficiency 调制效率高
higher frequency efficiency 更高的频谱效率
double frequency efficiency 倍频效率
double-frequency efficiency 倍频效率
Crystal double-frequency efficiency 晶体倍颜效率
mean carrier frequency efficiency factor 平均有效系数
Among the coherent schemes proposed so far, coherent time domain phase-encoded OCDM system is the most desirable choice for practical use in terms of the correlation property, frequency efficiency, and dispersion.
在相干编/解码方案中,综合考虑编/解码器的相关特性、频谱效率和色散效应等因素,时域相位编码OCDM系统最引人关注。
参考来源 - 高速时域扩频OCDM系统及其应用研究MIMO antennae system is one key technology which has enhances frequency efficiency and system capacity.
其中的多输入多输出(MIMO)天线系统是一种可以有效提高频谱利用率、系统容量的关键技术之一。
参考来源 - 多天线无线高速通信系统中多输入多输出（MIMO）链路空时编码（STC）技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Multimode modulation is a good method to increase the frequency efficiency and to maintain smaller frequency occupancy rate.
其中多进制调制，不仅能够提高频谱利用率，并且能保证较小的频谱占用率。
In order to get high data rate communication, we must enhance frequency efficiency because mat frequency resource is limited.
频谱资源是有限的，为了实现高速通信必须提高频谱效率。
Based on the overlapped symbols which can achieve coding constrain, it can be improved frequency efficiency and system performance.
通过自然的符号叠加形成了编码约束关系，不仅大幅度的提高了系统的频谱效率，而且有效的提高了系统性能。
应用推荐