Then it gives the detailed introduction to the basic principle of pll , and analysis of each module and the noise performance 接着介绍了pll的基本原理,分析了其噪声性能和杂散。
Standard test method for estimating stray radiant power ratio of dispersive spectrophotometers by the opaque filter method 用不透明滤光器评估色散分光光度计杂散辐射功率的标准试验方法
The spectrum characteristics of the phase truncation error and amplitude quantization error are analyzed by the method of fourier series 文章最后还简单介绍了几种改善杂散误差的方法。
The results indicate that sigma delta modulation could improve spurs of fractional - n frequency synthesizer in a certain extent 研究表明, -调制技术可以在一定程度改善小数分频的杂散。
Railway applications - fixed installations - protective provisions against the effects of stray currents caused by d . c . traction systems 铁路设施.固定设备.直流牵引系统引起的杂散电流效应保护措施
Causes of the stray current corrosion in inlet and outlet of the electrolytic bath were analyzed to put forward a solution 分析了电解槽进出口系统各主要设备杂散电流产生原因，提出了针对性的解决方案。
This paper introduces the basic concept of stray current of rail transit and elaborates the corrosion mechanism of stray current 摘要介绍了城市轨道交通杂散电流的基本概念、杂散电流腐蚀的机理，以及杂散电流的危害。
Railway applications - fixed installations - part 2 : protective provisions against the effects of stray currents caused by d . c . traction systems 铁路设施.固定设备.第2部分:由直流牵引系统产生的杂散电流影响的防护规定
Then presented the basic structure , phase model , frequency response and performance analysis for noise and spur , of phase locked loop ( pll ) 然后介绍了锁相环( pll )的基本结构、相位模型、频率响应、噪声及杂散性能。
Dds ( direct digital frequency synthesis ) can just solve this problem , yet the output has an upper bound and high wideband spurs Dds (直接数字频率合成)的出现恰好可以弥补这一缺陷,但是它输出频率上限太低,宽带杂散大。
