您要查找的是不是：
- intermediate frequency circuit 中频电路
- Radio frequency circuit design II. 射频电路设计2。
- Intermediate frequency instability has had the most uneven history. 中频不稳定性的研究经历了极为曲折的道路。
- Low and intermediate frequency instability models are taken up first. 首先处理低频和中频不稳定性的模型。
- Familiar with high frequency circuit and mobile basic theory. 熟悉高频电子线路、移动通信基本原理。
- Heating principle of intermediate frequency induction furnace and some factors affecting its power factor are discussed, Some betterments that parallel connection spacer circuit is replaced by interfusion connection spacer circuit are put in practice. 摘要对中频感应炉的加热原理以及其功率因数的影响因数进行了探讨，并将不能恒功率输出的并联逆变电路改进为混联逆变电路。
- This paper introduces the key specifications and its architecture of AD8369, and designs a full digital automatic gain control(DAGC) system for digital intermediate frequency receiver, and provides its control circuit and algorithm. 介绍了数字可变增益放大器(DVGA)AD8369的电路结构及其关键技术指标,并用该芯片为数字中频接收机设计了全数字自动增益控制(DAGC)系统,给出了其控制回路及其实现算法。
- The baseband and intermediate frequency processing of the spread spectrum transceiver, including its software and hardware circuit design, implement and debugging are finished in this paper. 本文完成了直接序列扩频收发系统中频、基带部分的软硬件设计、实现及调试，并给出了系统各模块的调试结果。
- Low or intermediate frequency combustion instability generally involves the interaction of several components of an engine system. 低频或中频燃烧不稳定性通常包含发动机系统中几个组件的相互作用。
- The pure quartz lump becomes quartz tube via untouched technology of intermediate frequency induction heating. 采用中频感应加热无接触技术,将石英净坨拉制成为石英管。
- Digital Intermediate Frequency (DIF) system is applyied widely in Radar and communication systems. 数字中频系统广泛应用于雷达和通信系统中。
- A power harmonic suppressing method based on low voltage intermediate frequency inductive stove was introduced. 介绍了一种基于低压中频炉的电力谐波治理方法。
- In signal processing, second-generation enhanced intermediate frequency sampling speed and signal processing speed and capacity. 在信号处理方面,第二代提高了中频采样速度,并加强了信号处理的速度和能力。
- As a special case,the effect of rectangular envelope edge of pulse signal on intermediate frequency sampling is carefully studied. 作为一种特例 ,详细研究了简单脉冲信号矩形包络边沿对镜频抑制的影响 ;
- As what is concluded from the above that it is practicable to design the digital intermediate frequency receiver with wide band at present. 由此可见，在现有条件下实现宽带数字中频接收机是可行的。
- A twist wire connected with multicircuit or variable frequency circuit board is winded on the industrial pipeline. 远处有多匝与变频电路板连接的螺旋状电线缠绕在工业管道上。
- There re fast intermediate frequency furnaces, automatic record of temperature measurement at stokehold and computer network. 高导电纯铜件及各种铜合金精密铸件；
- A high-side injection, fixed intermediate frequency (IF), double-quadrature-downconversion and low-IF structure is proposed for wideband receivers. 论证了宽带无线接收机宜采用上边注入、固定中频的二次正交混频低中频结构。
- Objective To observe the effect of traction and intermediate frequency penetration the invigorate net and relieve pain tincture. 目的观察中频电疗透入活络止痛酊并牵引治疗颈椎病的疗效及作用机制。
- By studying JPEG compression and HVS theory, watermarking information is embedded in the DCT intermediate frequency coefficient part of the image. 通过对JPEG压缩以及人眼视觉系统理论的研究，确定了把水印信息嵌入到图像的离散余弦变换域的中频系数部分；
