frequency mixing是什么意思

网络释义

用法例句

Based on an analysis of UHF(ultra-high-frequency)characteristic of PD(partial discharge) in power transformer,using mixing technique,a signal disposal cell has been devised for the sake of facilitating common data sampling card.

在分析了电力变压器局部放电的超高频特性的基础上,利用混频技术,设计了局部放电超高频信号的信号调理单元,方便普通数字采集卡采集。

A mixing measurement system on pulse tube cryocooler is designed.

设计制作适用于小型脉冲管制冷机上的高温超导混频实验测量系统 ,并对其制冷量进行了理论上的估算和实际测量。

Multiorder multiplyingmixing is adopted in the designed comparison system to increase the frequency deviation that can be measured.

所设计的频率标准比对系统采取多级倍频 混频方式使频率偏差逐级扩大后再测量,从而避免了直接进行高次倍频的困难,提高了测量精度,可以对高精度的频率标准的准确度、长短期频率稳定度进行快速测量,是一种高精度时畴参数测量系统。

High-frequency narrowband signal obtained by frequency mixing will increase signal-to-noise ratio(SNR) so as to expand the dynamic range of the measurement in the logarithmic transformation.

采用混频法获得一定增益的窄带高频信号,可以提高信噪比,进行对数变换时可以提高测量的动态范围;对小信号时出现的平方律检波导致对数变换时多出的乘2因子,给出了双对数通道的解决方案;对各级放大电路,提出了调零电路的调试方法,以减小零点漂移带来的影响。

In order to realize subnanometric resolution, a signal process system based on frequency multiple, frequency mixing and FPGA for high frequency counting is established.

采用电子倍频、混频、高频计数的方法可处理外差信号实现亚纳米分辨率，具有电路简单、能计大数的优点，但会引入电子信号的相位畸变，引入测量的动态误差。

In this paper,a new pre-distortion linearizer is proposed,which uses twice frequency mixing operation to generate predistortion signal.

在普通的预失真技术基础上,提出了一种二次混频预失真线性化器,其非线性失真信号通过二次混频产生,并给出了该电路的应用方式,从理论上对其特性进行了分析,计算机仿真结果表明:使用这种预失真技术能有效抑制三阶交调。

Design of LNA and Mixer in Receiver Front-end;

接收机前端低噪声放大器与混频器的设计

This paper describes the design and fabrication of an L-band microwave image jection mixer assembly.

介绍一种Ｌ波段微波镜象抑制混频组件的设计和制作。

This paper studies a millimeter mixer designed used for the short range radar.

研究一种用于近程雷达的毫米波混频器设计,通过环行器来实现本振和信号的输入,环行器的功率分配可根据雷达的作用距离来进行设计,采用鳍线结构来实现混频器的匹配输入。

Based the multiplication characteristics in analogue multiplier, this article introduces its applied mechanism in many fields such as frequency modulation, phase modulation, mixed frequency, synchronous detection and so on.

本文由模拟相乘器具有的乘法特性出发,介绍其在调频、调相、混频、同步检波、鉴相等诸多领城的应用机理,并以具体的MC1496模拟乘法器为例介绍一些高频电子技术中的实用电路。

mixer-filter frequency synthesizer

混频滤波式频率合成器

image reject mixer

象频干扰抑制混频器

synchronous mixer

同步混合器同步混频器

oscillator-mixer-first detector

振荡-混频第一检波器

wideband image recovery mixer

宽带图象恢复混频器

Semiconductor diode mixer

半导体二极管混频器

Semiconductor triode mixer

半导体三极管混频器

microwave mixing crystal diode

微波混频晶体二极管

One who mixes the audio components of a recording.

混频者把一个录音的音频成分混合起来的人

Transient Coherence Four-and Six-wave Mixing Spectroscopy with Phase-conjugation Geometry;

瞬态相干相位共轭四波混频和六波混频光谱术

" Mixers, radio frequency, general specification for"

GB/T13415-1992射频混频器总规范

heptode converter

五栅管混频器五栅管变频器

A Simple and Easy Test Method of Conversion Loss of a Mixer

混频器变频损耗的一种简易测试方法

A High Linear CMOS Up-Conversion Mixer;

高线性度的CMOS上变频混频器设计

Design of RF CMOS Mixer for 3G Application;

应用于3G的射频CMOS混频器设计

Design of 2.1 GHz RF CMOS Mixer

2.1GHz射频CMOS混频器设计(英文)

DDC Technology Based on Digital Orthogonal Mixing

基于正交混频的数字下变频技术研究

high and low frequency connector with mixed contact

高低频混装式连接器