The principles of frequency mixing technique and its application to detect PD signals at ultra high frequency (UHF) are introduced in this paper.
介绍了混频技术的原理及其在超高频局部放电信号提取中的应用。
Different ways to generate yellow laser were discussed, especially two nonlinear-optical methods of sum-frequency mixing and stimulated Raman scattering (SRS).
对黄光激光的产生方式进行了讨论，重点介绍两种获得黄光激光的非线性光学方法：和频和受激拉曼散射效应。
Therefore, taking advantage of AD device and digital filtering technique to realize mixing and other frequency transformation function is a comparatively advanced, novel and practical method.
因此，采用AD器件和数字滤波器技术实现混频等频率变换功能，是一种比较先进和新颖并且实际可行的方法。
Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity.
采用四波混频加强SBS的方法，其相干拍频驱动声子场，能提高SBS相位共轭保真度。
A mixing frequency excitation current source is designed according to the analysis of requirements of the bioelectric impedance measuring system.
通过分析生物阻抗测量系统的需求，设计了一种应用于生物阻抗测量的混频激励电流源。
A combination method based on secondary mixing and MTD (Moving target detection) processing is proposed for high-speed targets detection in linear frequency-modulated continuous wave (LFMCW) radar.
针对LFMCW雷达高速运动目标的检测问题，本文提出了一种二次混频与MTD处理相结合的方法。
An X-band frequency synthesizer designed with harmonics mixing technology is presented.
本文主要介绍利用谐波混频技术设计的X波段频率合成器。
To overcome the frequency offset between the mixing signal and modulating signal in PGC demodulation, an additional (A/D) channel in DSP system is used to sample the modulating signal.
针对PGC解调中混频信号与实际调制信号的频率偏差，在DSP系统实现中采用一路A/D转换器对调制信号进行同步采样，从而克服了频率偏差对解调结果的影响。
Mixing paddle and cutting knife adopt frequency control, which can control the size of particles.
搅拌桨与切割刀均采用变频调速，易于控制颗粒大小。
The system uses the emitter to send ultra high frequency signals after coding with signal coder and the secondary superheterodyne mixing receiver to accept the moving target signals.
系统中发射器采用编码器编码后发送超高频信号，接收器采用二次混频型超外差式接收移动目标信号。
In the paper, we advanced the method of mixing function by means of AD and DSP software programming, which is a typical application of frequency transformation with AD and digital filter.
本文提出采用AD和DSP软件编程的方法实现信号的混频功能，作为AD和数字滤波器实现频率变换的一个典型应用。
Mixing: frequency control, scraper, adopting unique revolution plus rotation way, more homogeneous mixing, scraping the pot more thoroughly, can effectively control certain material paste pot.
搅拌：变频调速，刮板独特，采用公转加自转的方式，混料更均匀，刮锅更彻底，可有效控制某些物料糊锅的问题。
In wideband auto-correlation receiver, signal after self-mixing is sine signal. A synthetic algorithm is proposed for sine signal frequency estimation.
在宽带自相关接收机中，自混频后的信号为正弦信号，本文提出了一种综合算法估计正弦信号的频率。
The machine adopts revolution and rotation synchronous agitation modes, to ensure the food ZhaZhi evenness, preventing food for extrusion and mutual adhesion, mixing system USES frequency conversion.
本机采用公转与自转同步的搅拌方式，保证了食品炸制的均匀性，防止食品因挤压而相互粘连，搅拌系统使用变频调速。
The frequency of the self-mixing interference signal is acquired by time-frequency analysis, and this frequency is equal to the Doppler shift, so the velocity of external object is gained easily.
该方法通过时频分析获得自混合信号频率随时间的变化，利用激光与外部物体相互作用后的多普勒频移与信号频率相等的关系，非常方便的获得了外部运动物体的速度历史信息。
The scheme adopted in the source is Direct Digital frequency Synthesis by frequency doubling and mixing.
频综源采用直接数字频率合成(DDS)加倍频、混频方案。
The paper adopts the mechanism of event-driving multi-procedure to realize voice-frequency processing and multichannel mixing. It also achieves f…
采用了事件驱动的多线程机制实现音频处理和多路混音，并在压缩域实现四画面和成。
To overcome the limitation of fringe counting and phase analysis, a new method based on the time-frequency analysis is proposed to process the self-mixing interference signal.
针对条纹计数法和相位分析法处理自混合干涉信号的不足，提出了一种基于时频分析的自混合干涉信号处理方法。
To overcome the limitation of fringe counting and phase analysis, a new method based on the time-frequency analysis is proposed to process the self-mixing interference signal.
针对条纹计数法和相位分析法处理自混合干涉信号的不足，提出了一种基于时频分析的自混合干涉信号处理方法。
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