常用术语中英文对照表

1、常用术语中英文对照表 英文中文Adder加法器Additivity可加性Aliasing混叠Allpass system全通系统Amplitude Modulation(AM)幅度调制Amplifier放大器Analog-to-Digital Conversion模数转换Aperiodic signal非周期信号Autocorrelation function自相关函数Band-limited signal带限信号Bandpass filter带通滤波器Block diagram方框图Bode plot波特图Butterworth filter巴特沃斯滤波器Carrier frequency载

2、波频率Carrier signal载波信号Cascade-form block diagram级联方框图Cascade (series) interconnection级联连接Channel equalization信道均衡Closed-loop system闭环系统Coefficient multiplier系数乘法器Communication system通信系统Complex conjugate复共轭Complex exponential复指数Complex number复数Continuous-time signal连续时间信号Conjugate symmetry共轭对称性Conjug

3、ation property共轭性质Continuous-time Fourier transform连续时间傅里叶变换Continuous-time system连续时间系统Convolution integral卷积积分Convolution sum卷积和Correlation function相关函数Cross-correlation function互相关函数Cutoff frequency截止频率Digital signal数字信号Demodulation解调Discrete-time离散时间Discrete-time Fourier series离散傅里叶级数Decibel (dB

4、)分贝Delay延迟Difference差分Differentiation微分Differential equation微分方程Direct Form realization直接型实现Direct Form realization直接型实现Dirichlet conditions狄利克雷条件Discontinuity不连续Discrete-time Modulation离散时间调制Discrete-time signal离散时间信号Discrete-time system离散时间系统Distortion失真Double-sideband modulation双边带调制Duality对偶性Eig

5、enfunction特征函数Eigenvalue特征值Elliptic filter椭圆滤波器Energy-density spectrum能量密度谱Envelope包络线Equalization均衡Exponential指数函数Fast Fourier Transform (FFT)快速傅里叶变换Feedback反馈Feedback interconnection反馈互联Filter滤波器Finite Impulse Response (FIR)有限冲激响应Final-value theorem终值定理First harmonic component一次谐波分量First-order con

6、tinuous-time system一阶连续时间系统First-order discrete-time system一阶离散时间系统Forced response强迫响应Frequency-Division Multiplexing (FDM)频分复用Frequency response频率响应Frequency scaling 频率尺度变换Frequency shifting property频移性质Gibbs phenomenon吉布斯现象Group delay群延时Harmonic component谐波分量Highpass filter高通滤波器Hilbert transform希尔

7、伯特变换Image processing图像处理Imaginary part虚部Impulse response冲激响应Infinite Impulse Response (IIR)无限冲激响应Initial-value theorem初值定理Instantaneous frequency瞬时频率Integral积分Integration property积分性Integrator积分器Linear Time Invariant (LTI) system线性时不变系统Inverse Fourier transform傅里叶逆变换Inverse Laplace transform拉普拉斯逆变换I

8、nverse system逆系统 Inverse z-transformz逆变换Laplace transform拉普拉斯变换Left-half plane左半平面Left-sided signal左边信号Linear constant-coefficient differential equation线性常系数微分方程Linear constant-coefficient difference equation线性常系数差分方程Linear feedback system线性反馈系统Linearity线性Lowpass filter低通滤波器Matched filter匹配滤波器Modula

9、ting signal调制信号Modulation调制Modulation index调制指数Modulation property调制性质Multiplexing 多路复用Multiplication乘法Natural frequency自然频率Natural response自然响应Negative feedback负反馈Network网络Noncausal system非因果系统Nonideal filter非理想滤波器Normalized function归一化函数Nyquist frequency奈奎斯特频率Nyquist rate奈奎斯特速率Operational amplifie

10、r运算放大器Orthogonal function正交函数Orthogonal signal正交信号Partial-fraction expansion部分分式展开Periodic convolution周期卷积Periodic signal周期信号Power功率Periodic square wave周期性方波Phase lag相位滞后Phase lead相位超前Phase shift相移Polar form for complex number复数的极坐标形式Pole极点Pole-zero plot零极点图Power of signal 信号的功率Power-series expansio

11、n method幂级数展开法Real part实部Rectangular pulse矩形脉冲Region of Convergence (ROC)收敛域Right-sided signal右边信号Right-sided sequence右边序列Right-half plane右半平面Rise time上升时间Sampling frequency抽样频率Sampling function抽样函数Sampling period 抽样周期Sampling theorem抽样定理Scaling in the z-domainZ域尺度变换Second harmonic component二次谐波分量Se

12、cond-order system二阶连续时间系统Series (cascade) interconnection串联(级联)连接Sifting property移位性shifting property in the s-domains域移位性Single-sideband sinusoidal amplitude modulation单边带正弦幅度调制Singularity function奇异函数Sinusoidal frequency modulation正弦频率调制Sinusoidal signal正弦信号Square wave方波Step-invariant transformati

13、on 阶跃响应不变法Step response阶跃响应Stopband frequency阻带频率Stopband ripple阻带纹波Summer加法器Superposition property叠加性Symmetry对称性System function系统函数Stability稳定性Time constant时间常数Time delay时延Time-Division Multiplexing (TDM)时分复用Time-domain时域Time reversal property时间翻转性Time shifting property时移性Transition band过渡带Unilateral Laplace transform单边拉普拉斯变换Unilateral z transform单边变换Uni