2) quadrature frequency conversion
正交频率变换
1.
The effect of multi transversal mode on quadrature frequency conversion in a solid-state laser was analyzed,and the relation between the conversion efficiency and the divergent angle was conducted.
对多横模全固态激光器使用正交频率变换进行了分析,计算了频率转换效率与激光发散角的关系。
3) orthogonal frequency division
正交频率分集
1.
Target full polarization instantaneous measurement based on orthogonal frequency division
基于正交频率分集的目标全极化瞬时测量方法
2.
Based on orthogonal frequency division and full-polarization instantaneous measuring method,a new waveform vector was designed to get full-polarization information simultaneously under wideband condition.
雷达目标宽带全极化测量在雷达成像、目标识别等领域有着重要应用,为此,基于正交频率分集思想,设计了一种用于宽带全极化瞬时测量的矢量信号波形;给出发射信号模型和回波信号模型,利用该波形的单个脉冲回波,可以获取测量带宽内多频点全极化数据,再经逆离散傅立叶变换后可以得到目标的全极化一维距离像;最后,用仿真数据和实测数据进行仿真实验,验证了该方法的有效性。
4) orthogonal frequency-diversity multiplexing
正交频率差异多路
5) optical orthogonal time/frequency combination code
光正交时间频率组合码
6) frequency diversity QAM (FDQAM)
频率分集正交调幅
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