根据教室电器节能系统的需要，介绍了基于电力线载波芯片LM 1893的电力线载波电路的设计。
A power line communication system based on the special carrier chip LM1893 is introduced in the paper.
介绍采用微波混频器的上变频特性实现宽带平方电路的设计方法与具体实现，主要用于高码速率QPS K信号的载波恢复。
An introduction of the design and implementation of a broad-band square circuit is given, which is used to recover the carrier of the high speed QPSK signal.
副载波产生电路是视频处理系统的重要组成部分。
The subcarrier generation circuit is very important constituent in the video process system.
该遥控装置采用晶体稳频脉冲调幅发射机，电路较简单，频率稳定度高，发射的是间断的28MHZ等幅载波。
The remote control device crystal frequency stabilization using pulse amplitude modulation transmitter, A simpler circuit, high frequency stability, launched 28MHZ are continuous carrier amplitude.
直接序列扩频接收机对本地载波的同步要求非常严格，以往所需电路复杂。
A direct sequence spread spectrum (DSSS) receiver has strict requirement on local carrier's synchronization, and always needs complex circuits.
集成电路倒装芯片封装中半导体铸模和载波器的焊料中的铅；
Lead in solders to complete a viable electrical connection between semiconductor die and carrier within integrated circuit Flip Chip packages.
在这种情况下，信源给发射机提供一个电信号，发射机中的电路驱动光源以实现对光载波的调制。
In this case the information source provides an electrical signal to a transmitter comprising an electrical stage which drives an optical source to give modulation of the lightwave carrier.
重点研究载波同步方法，设计电路及参数，仿真同步性能，并在现场可编程门阵列(FPGA)上实现同步电路。
We focus on the carrier synchronization method, the circuit and its parameters design, the performance simulation and the circuit implementation in Field Programmable Gate Array (FPGA).
介绍了一个应用在移动支付系统里的全集成载波时钟恢复电路。
This paper presents a fully integrated carrier clock recovery circuit for a mobile payment application.
通过对载波接收机限幅干扰分析，提出电路改进的办法。
Based on the analysis of carrier receiver limited amplitude interference, provide a way of circuit modification.
第四章在FPGA平台上实现载波同步单元电路，并给出了实现后的FPGA资源消耗、寄存器传输逻辑(rtl)原理图。
In chapter 4, the circuit of the carrier synchronization unit is implemented on FPGA, the Resistor Transistor Logic (RTL) schemes are presented.
为输电线载波通信系统可靠执行它一定能避免，或者应付与，在它的通讯电路遇到的噪声的不同的类型。
For a power line carrier communications system to perform reliably it must be able to avoid, or cope with, the different types of noise encountered on its communications channel.
研究采用正负斜率交替的锯齿载波，成功地解决了主电路在任何电压矢量下都能实现零电压开关动作；
The saw-tooth carrier waves with positive or negative slope alternately are studied and applied into the three-phase PWM inverter soft-switching operation.
直流电压在内置电路被转换交流载波信号，激励传感器的初级线圈，一个集成的解调放大。
The DC excitation is internally converted to an AC carrier signal which excites the transducer's primary coil.
介绍一种利用220伏同相电力线载波传送dtmf编码数据的系统中的通讯及控制电路的设计，它与数据采集电路及数据处理电路构成一个完整的系统。
The design of the communication and controlling circuit that transmits DTMF code in AC220 inphase power line is presented. It forms a complete system with data picking and processing circuit.
利用DDFS技术设计出一种改进的副载波产生电路结构。
Designs one kind of improvement subcarrier circuit structure, which used DDFS technology.
该系统电路简捷、速度快、抗干扰能力强，可在很宽的载波频率范围内应用和深入研究。
The system features simple construction , quick response and strong anti - interference ability. It may be applied and further developed in the field of wide range of carrier frequencies.
该系统电路简捷、速度快、抗干扰能力强，可在很宽的载波频率范围内应用和深入研究。
The system features simple construction , quick response and strong anti - interference ability. It may be applied and further developed in the field of wide range of carrier frequencies.
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