该词条未找到_海词词典

您要查找的是不是：

The phase noise of PLL is?88.83 dBc/Hz at 10kHz offset. 37GHz的单片锁相环电路的锁定范围为32MHz;锁定时在偏离中心频率10kHz处的相位噪声为-88.;83dBc/Hz。
Secondly, the phase noise and spurs of PLL are analyzed and the formulae for calculating them are given. 接着对PLL的相位噪声和杂散进行分析，得出估算相位噪声和杂散性能的公式。
The phase noise of the design plan of DRO +PLL has been analyzed. The loop filter has been designed for PLL with CAD. The frequency synthesizer in X-band has been designed. 同时,本文还分析了DRO 稳频锁相设计方案的相位噪声指标,利用软件对锁相环的环路滤波器进行了设计,研制了X 波段的点频锁相源。
It is measured that the phase noise of mm-wave PLL source is-78dBc/ Hz (Fourier frequency is 1kHz offset carrier 37.4 GHz), spurious is lower than-60 dBc, output power is higher than 40mW. 实验表明;34.;7GHz频率点输出的相位噪声指标(傅氏频率为1kHz时)为-78dBc/Hz;杂散优于-60dBc;输出功率大于40mW。
It is measured that when Fourier frequency is 1kHz and offset carrier is 92. 7GHz, the phase noise of 3mm-wave PLL source is-75dBc/Hz. Spurious is lower than-55dBc and output power is higher than 10mW. 经测试，92.;6GHz时其相位噪声指标（傅氏频率为1KHz时）为－75dBc/Hz，杂散优于－55dBc，输出功率大于10mW。
The results show that the influence of the phase noise of the initial pump field on the Stokes field is more obvious than on the residual pump field. 研究结果表明，泵浦光的初始相位畸变对斯托克斯光相位畸变的影响较剩余泵浦光的更为明显；
The phase noise of a phase-locked VCO will be at least 6dB worse than the phase noise of the divided reference for each octave between the comparison frequency and the VCO output frequency. 大部分数字相位探测器在两个输入一致的模拟输出变化不超过的小范围有死区。
The article starts with the vibrating impact on the crystal oscillator in the radar frequency synthesizer, and analyses the phase noises of crystal oscillator under the random vibration condition. 摘要从振动对雷达频综器中晶体振荡器的影响入手，分析晶体振荡器在随机振动条件下的相位噪声。
The noise of traffic is a constant irritant to city dwellers. 车辆的噪音对城市居民是永无止境的骚扰。
The phase noise in microwave receiver and the measured parameter of source frequency instability are described in this paper, and the technology of frequency-synthesizing and theory of Phase Locked Loop (PLL) are also briefly introduced. 摘要阐述了微波接收机中的相位噪声概念及本振源频率不稳定度的实际测量参数，并简要介绍了频率合成技术和锁相环路工作原理。
The objective of this thesis is to study the noise of PLL and provide some low-noise design methods. 本文的目的就是研究目前应用最广的电荷泵锁相环的噪声特性和减小环路噪声的设计方法。
The noise of traffic grows louder and louder. 交通的噪音变得愈来愈大。
The noise of jets taking off is deafening. 喷气式飞机起飞时发出震耳欲聋的轰鸣声。
The Phase Noise Of Frequency Synthesizer For Radar And Visibility's Limitation In The Background Of Clutter 机载雷达频综器的相位噪声及其对杂波下能见度的限制
At the beginning the principle of PLL is introduced, then a hardware design and implementation of frequency synthesizer based on ADF4218L is presented. 文中在简要叙述锁相环的基本原理的基础上,介绍了ADF4218L的主要特点及基于ADF4218L锁相频率合成器硬件电路的设计和实现。
His nerves were frayed by the noise of traffic. 他被交通噪音弄得神经紧张。
Based on analyzing the advantages of PLL and FLL,a new method of carrier tracking,which is combining FLL with PLL is presented in this paper. 在分析PLL和FLL环路各自优点的基础上,提出了一种FLL/PLL相结合的载波跟踪方法,分析了热噪声及载体动态性对载波跟踪环路的影响,得出了环路设计的最佳带宽。
Firstly, the stability of PLL is investigated.The stable criterions of PLL designed with different bandwidth are explored. 本文首先对电荷泵锁相环的稳定性做了仔细研究，得到了不同环路带宽下环路稳定工作的条件，这是锁相环电路能够正常工作的前提。
The room is away from the noise of the traffic. 这个房间远离交通噪声。
The noise of the car died away in the distance. 汽车的声音消失在远方。