Frequency Source [物] 频率源
constant-frequency source 固定频率震源
fixed-frequency source 固定频率源
variable frequency source 变频电源
standard frequency source 标准频率源
pll frequency source 锁相频率源
dds frequency source 直接数字合成频率源
high-frequency source 高频信号源
Phase noise is a sort of random phase disturbance produced by the nonideality factors of frequency source. Its impact to OFDM includes common phase error (CPE)and inter carrier interference(ICI).
相位噪声是频率源非理想因素引入的一种随机相位干扰,对解调的OFDM信号产生两种影响:公共相位误差(CPE)和载波间干扰(ICI)。
参考来源 - OFDM系统中相位噪声的影响与补偿Then do a research of PLL frequency source on two key feature—phase noise and spurs.
然后详细分析了频率合成器两个关键指标,相噪和杂散的产生机理及特性。
参考来源 - Ku波段宽带低噪声雷达跳频源的研制·2,447,543篇论文数据，部分数据来源于NoteExpress
Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.
固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。
Whatever it is radar, eccm equipment, communication equipment or instrument, frequency source with high stability is needed to guarantee the quality of carrier signal.
无论是雷达、电子对抗，还是通信、仪器设备等都需要高稳定度的频率源，以保证载波信号的质量。
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