Amplitude-quantization spurs in direct digital frequency synthesizers in absence of phase truncation;
无相位截断情况下DDS的幅度量化杂散特性分析
Analysis and Design of the Spurs in the Multiple-loop Small Step Size Synthesizer;
多环小步进频综杂散分析与设计
Design of a Charge Pump for Low-Spur Phase Locked-Loops
低杂散锁相环中电荷泵的设计
Precise Analysis of the Spurious Spectrum of DDS in the Presence of Phase Truncation;
直接数字频率合成器相位截断杂散谱的精确分析
The Influence of DDS Spurious Effects on Stepped-Frequency Radar s Performance;
定性分析DDS杂散对步进频率雷达性能的影响
During RF and microwave measurement, especially spurious signal spectrum test, some spurious signal maybe caused bythe spectrum analyzer itself, and displayed on the screen.
在射频和微波测试中,特别是杂散信号频谱测量过程中,由于测试系统及频谱仪自身原因可能产生伪信号,即频谱仪读出不属于被测设备发出的信号,本文主要阐述此类信号产生原因及判别方法。
This paper introduces a frequency source with low phase-noise and low spurs and the performance of the system.
本文介绍了一种低相噪低杂散频率源的设计方法，并给出了最终测试所得的系统性能指标。
This paper illuminates theory, structure, spectrum distribution, merits and defects, especially spurs of Direct Digital Synthesis(DDS), and it then introduces Phase Locked Loop (PLL) theory.
对DDS的结构、优缺点、频谱分布，特别是杂散性能进行了详细的阐述。
Based on these key points, this thesis designs a radar transceiver in millimeter wave band, with low phase noise, low spurs and high frequency-switching speed.
本课题即是基于这个方向,研制出了一种低相噪,低杂散,捷变频的毫米波雷达器前端系统的频综。
Then,a new DDS structure for eliminating spurious signal caused by phase truncation error is introduced.
分析了直接数字频率合成技术(Direct Digital Synthesizer,DDS)的工作原理及其频谱特点,在此基础上介绍一种可降低相位截断误差引起的杂散的DDS新结构,并给出MATLAB对设计方法进行仿真的结果。
Simulating first order stray light of FY-2 VISSR using templates;
基于模板的FY-2一级杂散光模拟
Data structure of stray light analysis in systems including diffraction components and ghosts analysis;
衍射光学元件杂散光分析的数据结构及鬼像分析
Detecting the sensitivity and stray light of spectrophotometer;
分光光度计灵敏度、杂散光的测定
Corrosion reasons of stray current during metal anode electrolyzers running;
金属阳极电解槽运行中杂散电流的腐蚀原因
Research on distribution rule of the stray current in the pits;
煤矿井下杂散电流分布规律的研究
Design of reducing corrosion to electrolysis system by reduction in stray current;
电解系统降低杂散电流腐蚀的设计
This paper introduces the basic concept of stray current of rail transit and elaborates the corrosion mechanism of stray current.
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。
The Method of Testing Stray Light in a Laser Raman Spectrometer
激光拉曼分光计中杂散光的测试方法
The Stray Current Corrosion Research on the Ship Berthing at the Steel Sheet Dock;
钢板桩码头靠泊船杂散电流腐蚀研究
Aesthetic Construction in Translation of Prose--On XIA Ji an s Translation of The Old Manse;
散文翻译的美学建构——评夏译散文《古屋杂忆》
New Proses Characteristic of Essays--On Liang Xiaosheng s Proses;
有杂文血统的新散文——谈梁晓声的散文创作
With increasing doping concentration, the impact of neutral impurity scattering becomes more significant.
随着掺杂浓度的增加,中性杂质散射作用增强.
Articles, essays, stories and poems from journals and books of literature will be selected for class reading and discussions.
课堂上阅读讨论选自杂志文学书本的杂文散文。
Dissemination of printed material, especially copies of newspapers or magazines, among readers.
散发印刷品的散发，尤指在读者间报纸或杂志印刷品的散发
the third, called sanduan, zaban, zawang or jihe, consisted of comic acts sometimes interspersed with acrobatics.
第三段叫散段，也叫杂扮、杂旺、技和，表演滑稽、调笑，或间有杂技。
All the papers were haphazardly strewn on desks.
所有文件杂乱地散落在书桌上。
Veiling glare of optical systems-Methods of measurement
GB/T10988-1989光学系统杂(散)光测量方法
Spring displays the noisy, often shallow moods of adolescence
春天散布着嘈杂、浅淡的少年心情
The stars are not scattered helter-skelter throughout space.
恒星并非杂乱无章地散布在太空的。
His prose is larded with pompous expressions.
他的散文夹杂着浮夸的修辞。
Computer Emulating on EM Scattering of Composite Two Dimensional Targets
二维复杂目标电磁散射的计算机仿真
A Study of Enterprise Informationalization on Terminal for Bulk & General Cargo;
企业信息化在散杂货码头的应用研究
Analysis of Characteristics of Electromagnetic Wave Scattering and Clutter from Rough Ocean Surface;
粗糙海面电磁波散射与杂波特性分析
The Essay and the Prose Sketch Pay Equal Attention to "Weeds" the Periodical;
杂文与散文小品并重的《野草》期刊