1) Frequency ranges
频率段
2) frequency in each section
区段频率
3) Frequency partition
频率分段
4) C-band frequency
C波段频率
1.
This paper presents a design scheme of C-band frequency signal source through their separate characteristics of DDS and PLL,gives the main hardware devices and specific implementation.
结合数字直接合成技术(DDS)和锁相环技术(PLL)的各自性能特点,介绍了一种实现C波段频率信号源的设计方案,并给出主要的硬件选择及具体的实现。
5) frequency band
频带，波段，频率带
6) detection time step and frequency
监测时段及频率
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