This paper describes that through extracting harmonic components of periodic signals of frequency selective circuit,computer simulation and measurement of cycle of fundamental triangle wave,3rd harmonic,5th harmonic,showes that results consistent with the theoretical analysis and validates the Fourier decomposition of the periodic signals.
通过选频电路对周期信号的谐波分量进行提取,并进行计算机仿真,测量了周期三角波的基波、3次谐波、5次谐波,结果与理论分析一致,验证了周期信号的傅里叶分解。
The core part of the circuit is differential and frequency selection.
电路核心部分由微分电路和选频电路组成。
Spectrum Management and Routing in Multi-hop Cognitive Radio Networks;
多跳认知无线电网络频谱管理与选路策略研究
The theoretical circuit,gain and selectivity of the regenerative frequency converter;
再生式变频器的原理电路及其增益与选择性
Selection and Application of the Main Circuit and Device of High Power Converter
大功率变频装置主电路及器件的选择与应用
high -frequency channel
高频电路, 载波电话通路
Power Frequency Electric Field Calculation and Span Selection for UHV Transmission Lines with Different Meteorological Conditions
不同气象条件下特高压输电线路工频电场计算与档距选择
set of voice-frequency multiplex telegraph circuits
音频复用电报电路群
low frequency AC coded track circuit
低频交流电码轨道电路
addressing circuit
寻址电路;寻址电路;定址选择电路;地址选择电路
GSM900/1800 Two Band Mobile Phone RF Circuit Design;
GSM900/1800双频移动电话射频电路设计
Cineplex Channel [Wharf Cable]
自选影院频道〔有线电线〕
frequency pision multiplex telegraph system
频分多路复用电报系统
radar AFC circuit
雷达自动频率控制电路
High-video pass (HVP)
极窄视频脉冲通过电路
horizontal AFC circuit
行自动频率微调电路
single-channel carrier frequency telephone terminal
单路载频电话终端机
multichannel carrier-frequency telephone terminal
多路载频电话终端机
vision interference limiter
视频电路干扰限制器