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- Application of Digital Frequency Synthesis Technique in Missile-borne Equipment 数字频率合成技术在弹载设备中的应用
- Phase-locked Frequency Synthesis Technique Controlled by Single-chip Computer 单片机控制的锁相频率合成技术
- frequency synthesis technique 频率合成技术
- Direct Digital Frequency Synthesis(DDS) technique is introduced and its spurious error is mainly studied. 介绍了直接数字频率合成技术以及分析其杂散误差,对相位截断误差和幅度量化误差进行了傅立叶级数分析研究。
- The synthesis technique of octreotide was optimized and magnified. 优化并放大了奥曲肽的合成技术。
- Digital look-up table method for synthesizing periodic signals is the most popular technique for direct digital frequency synthesis. 数字查表法合成周期信号是一种最常用的直接数字频率合成技术。
- frequency synthesis techniques 频率合成技术
- The optimal synthesis technique of yellowing inhibitor amino-TEMPO wasstudied on the first part of this paper. 本文研究合成返黄抑制剂多胺基TEMPO的各种影响因素,得出最佳工艺条件,并对产品进行结构分析。
- If no frequency synthesis is needed, the DLLs are preferred for the purpose of synchronization. 如果频率合成非必要的需求,在处理同步问题时,延迟锁相迴路是较佳的选择。
- DDS hybrid PLL can take good advantage of both their merit, have become an important area of frequency synthesis. PLL混合频率合成技术能综合两者的优点,已成为现今频率合成领域的重要研究方向。
- The basic principle of using phase locked loop technique to realize the design and analysis of program controlled frequency syntheses was introduced. 本文简要地叙述了应用锁相环路实现信号合成的基本原理。
- Frontal polymerization (FP) is a polymer synthesis technique that uses the exothermic reactions to form a self2sustaining wave. 波聚合是指靠自身反应放热产生的热波维持反应进行而将单体转化为聚合物的聚合方法。
- NiAl-CO3-LDHs/ -Al2O3 samples prepared using an in-situ synthesis technique are used as a precursor of NiO/ -Al2O3 catalysts. 本文以氨水为沉淀剂,通过控制电离平衡和配位平衡的移动,利用 -Al2O3载体的表面Al源,在其内孔表面合成了NiAl-CO3-LDHs微晶,成功地制备了孔径分布范围窄、比表面积大的NiAl-CO3-LDHs/ -Al2O3催化剂前体。
- The technology of direct digital frequency synthesis(DDS),is a new typed synthesizer technology and signal frequency methods. 直接数字频率合成技术,即DDS,是一种新型的频率合成技术和信号产生方法。
- Direct Digital Frequency Synthesis(DDS) technology is realized on complex programmable logical component(CPLD) with hardware description language. 在复杂可编程逻辑器件(CPLD)上,用硬件语言实现了直接数字频率合成(DDS)技术。
- This paper uses orthogonal experiment to research on the synthesis technique of pseudo-ally lionone from citral and allylacetone. The product structure had analysed by IR. 利用正交试验法对柠檬醛和烯丙基丙酮合成假性烯丙基紫罗兰酮的工艺进行了研究,并用红外光谱对产品进行了结构分析和鉴定。
- A UHF instrument which adopted frequency synthesis method used in exploring the partial discharge (PD) in GISs is introduced. 文中介绍一种采用频率合成技术对GIS腔体内放电所产生的甚高频响应进行检测的UHF测量设备。
- This paper introduces the production situation of PTMEG, the synthesis technique by furfural method and the market situation at home and abroad are introduced too. 本文介绍了PTMEG产品的生产情况,糠醛法工艺合成路线以及国内外PTMEG市场情况,对前郭炼油厂PTMEG项目投资机会进行了分析。
- Could versus signal passing programme came realize frequency demultiplication, could realize precise frequency synthesis output. 可以对信号通过编程来实现分频,从而可以实现精确的频率合成输出。
- Dimethylethanolamine (DMEA) is an important chemical product, but there exists low yield disadvantage in its current synthesis technique because of many side reactions. 摘要二甲基乙醇胺(DMEA)是一种重要的化工产品,其现有的合成工艺由于存在副反应导致收率较低。