Unit 3 electrical technique
模拟电路analog cricuit
集成电路intergrated circuit IC
共射极电路common emitter circuit
负载电阻load resistor
短路short circuit amplifier
运算放大器operational amplifiers
差分放大器differential amplifiers
同向输入端电压the voltage at the non-inverting input
反相输入端电压the voltage at the inverting input
二进制方式binary manner
低电压low voltage
数字系统digital system
逻辑功能logic functions
十进制decimal system
直流负逻辑系统a DC negative-logic system 脉冲逻辑pulse-logic
动态正逻辑系统a dynamic positive-system AC alternating current 交流电
DC direct current 直流电
IC integrated circuit 集成电路
VCO voltage controlled osicllator 压控振荡器FET field effect transister 场效应管
PLL permutation of last layer 锁相环
MLL magnitude locked loop锁幅环
Unit 4 microelectronics
FET field effect transistors
IC integrate circuit
AMP amplifier
为了测量电阻to measure resistance
应用这些定律apply these laws
用来测量电流、电压、电阻be used to measure current、voltage and resistance
求这个电路中的电流find the current in the circuit
发送信息to transmit intelligence
带电了be charged
理解这个概念to understand this concept Unit 6 electronic communications
FAX facsimile 电传真
AM amplitude modulation 幅度调制PCM pulse-code Modulation脉冲编码调制TDM time-division multiplexing时分多路USSR Union of Soviet Socialist Republics 苏联RAM random access memory 随机存取存储器
VLSI vary large scale integration超大规模集成
ISDN Integrated Services Digital Network综合业务数字网
HDTV high definition television 高清电视ADC analog-digital converter 模数转换器SSB single sideband 单边带
PSK phase-shift keying 相移键控
ITU International Telecommunications network 国际电信联盟
PTN public telecommunications netwotk公用电信网络
Hi-Fi high fidelity 高保真度
binary-coded number 二进制编码electromagnetic induction 电磁感应
block diagram 方框图
discrete signal 时间离散分布的信号
a full array 全方位的全面的
negative-feedback amplifier 负反馈放大器adaptive equalization 自适应均衡
los propagation 视线传播
speech channel 话路
sampling frequency 抽样频率
stream of pulses 脉冲流
transmission quality 传输质量transmission path 传输路由
noise power 噪声功率
8-digital sequence 8位码序列
真空三极管triode vacuum tube
纠错编码error-correction code
视线传播Los propagation
电离层反射ionospheric reflection
多路通信系统multiplexed system
奇偶校验位parity bit
频率配置frequency assignment
频率的整体规划the overall-frequency plan 扩频系统spread spectrum system
高清晰度电视HDTV
带通信号bandpass signal
单边带single sideband
国际电信联盟ITU
业余无线电amateur radio
信噪比signal to noise
抽样、量化与编码sampling quantizing and coding
幅值amplitude valude
抽样速率sampling rate
重复率repetition rate
模拟信号analog signal
含噪声的环境noisy environment
信号电平signal levels
反向操作reverse operation
同步字synchronization word Unit 7 digital modulation
AWGN Additive White Gaussian Noise 加性高斯白噪声
RF radio frequency 射频无线电频率DSP digital signal processing 数信处理MSK minimum-shift-keyed 最小移位键控OOK on-off keying 开关键控
BPSK binary phase-shift keying 二进制相移键控
FSK frequency-shift keying 频移键控DAC digital-to-analog converter 数模转换DSB-SC double-side band suppressed carrier 抑制载波双边带调制
ISI inter symbol interference 码间干扰
超大规模集成电路very large scale intergration circuit 数字信号处理digital signal processing
数字通信系digtial communication system 误码率bit error rates
信道编码理论channel coding theorem 个人通信系统personal communication system
多径时延扩展multipath time dispersion 正交调制quadrature modulation
开关键控on-off-keying
幅移键控amplitude shift keying
频移键控frequency-shift keying
空号频率space frequency
预调制pre-modulation
导频载波pilot carrier
科斯塔斯环costas loop
相干检测coherent detection
差分编码differential coding
digital modulation 数字调制
analog modulation 模拟调制
error-control codes 差错控制码
pulse-width 脉冲宽度
non-fading channel 无衰落信道
radio frequency 射频
raised cosine-roll off filter 升余弦滚降mark-frequency 信号频率synchronous detection 同步检波squaring loop 平方环
digital modulation index 数字调制指数intergrate-and-dump matched filter 积分清除匹配滤波。