专业英语词汇信号与系统1

《信号与系统》专业术语中英文对照表第章绪论1信号signal系统system电压voltage电流current信息information电路circuit网络network确定性信号随机信号determinate signalrandom signal一维信号多维信号one-dimensional signalmulti-dimensional连续时间信号离散时间信号signal continuous time signal取样信号discrete timesignal samplingsignal数字信号周期信号digital signalperiodic signal非周期信号能量nonperiodic aperiodicsignal energy功率power能量信号energy signal功率信号power signal平均功率average power平均能量指数信号时间常average energyexponential signal数正弦信号time constantsine signal余弦信号cosine signal振幅amplitude角频率初相位周期angular frequencyinitial phaseperiod频率frequency欧拉公式Eulers formula复指数信号复频率complex exponentialsignal complexfrequency实部real part虚部imaginary part抽样函数偶函数Sar samplingSa functioneven function奇异函数singularity function奇异信号singularity signal单位斜变信号unit rampsignal斜率slope单位阶跃信号unit stepsignal符号函数signum function单位冲激信号unit impulse signal广义函数generalized function取样特性sampling property冲激偶信号impulse doubletsignal奇函数odd function偶分量even component奇分量odd component正交函数orthogonal function正交函数集set oforthogonal function数学模型mathematics model电压源voltage source基尔霍夫电压定律Kirchhoffs voltagelaw KVL电流源current source连续时间系统continuoustime system离散时间系统discrete timesystem微分方程differential function差分方程difference function线性系统linear system非线性系统nonlinear system时变系统time-varying system时不变系统time—invariant system集总参数系统lumped-parameter system分布参数系统distributed-parameter system偏微分方程partial differentialfunction因果系统causal system非因果系统noncausal system因果信号causal signal叠力口性superposition property均匀性homogeneity积分integral输入-输出描述法input-output analysis状态变量描述法state variableanalysis单输入单输出系统single—input andsingle-output system状态方程state equation输出方程output equation多输入多输出系统multi-input andmulti-output system时域分析法time domainmethod变换域分析法transform domainmethod卷积convolution傅里叶变换Fouriertransform拉普拉斯变换Laplace transform第章连续时间系统的时域分析2齐次解homogeneous solution特解particular solution特征方程characteristic function特征根characteristic root固有自由解natural solution强迫解forced solution起始条件original condition初始条件initial condition自由响应natural response强迫响应forced response零输入响应zero-inputresponse零状态响应zero-state response冲激响应impulse response阶跃响应step response卷积积分convolution integral交换律exchange law分配律distribute law结合律combine law第章傅里叶变换3频谱frequency spectrum频域frequency domain三角形式的傅里叶级数指数形式trigonomitric Fourierseries的傅里叶级数傅里叶系数exponential Fourierseries Fouriercoefficient直流分量direct composition基波分量fundamental compositionn次谐波分量zth harmoniccomponent复振幅complex amplitude频谱图spectrum plotdiagram幅度谱amplitude spectrum相位谱phase spectrum包络envelop离散性discrete property谐波性harmonic property收敛性convergence property奇谐函数odd harmonicfunction吉伯斯现象Gibbs phenomenon周期矩形脉冲信号周期锯齿脉periodic rectangular pulsesignal冲信号周期三角脉冲信号periodic sawtoothpulse signalperiodictriangular pulsesignal周期半波余弦信号周期全波余弦信号periodic half-cosine signalperiodic傅里叶逆变换full-cosine signalinverse Fouriertransform频谱密度函数spectrum densityfunction单边指数信号双边指数信号single-sided exponentialsignal two-sided exponential对称矩形脉冲信号线性signal symmetryrectangular pulsesignal linearity对称性symmetry对偶性duality位移特性shifting时移特性time-shifting频移特性frequency-shifting调制定理modulation theorem调制modulation解调变频demodulation frequencyconversion尺度变换特性scaling微分与积分特性时域微分特性differentiation andintegration differentiation in the时域积分特性频域微分特性time domain integration in the time domain频域积分特性differentiation in the frequencydomainintegration in the frequency卷积定理domain convolution theorem时域卷积定理频域卷积定理convolution theorem in thetimedomain convolution取样信号theoreminthefrequencydomain samplingsignal矩形脉冲取样rectangularpulsesampling自然取样nature sampling冲激取样impulse sampling理想取样ideal sampling取样定理sampling theorem调制信号载波信号已调制信号modulation signalcarrier signalmodulated模拟调制数字调制连续波调制signal analogmodulation digitalmodulationcontinuous wavemodulation脉冲调制pulse modulation幅度调制amplitude modulation频率调制J frequencymodulation相位调制phase modulation角度调制angle modulation频分多路复用时分多路复用frequency-division multiplexFDM time—division相干同步解调multiplex TDMsynchronous detection本地载波local carrier系统函数system function网络函数network function频响特性frequency response幅频特性amplitude frequencyresponse相频特性phase frequencyresponse无失真传输distortionless transmission理想低通滤波器ideal low-pass filter截止频率cutoff frequency正弦积分sine integral上升时间rise time窗函数window function理想带通滤波器ideal band-pass filter第章拉普拉斯变换4代数方程algebraic equation双边拉普拉斯变换two-sided Laplacetransform双边拉普拉斯逆变换inverse two-sided Laplacetransform单边拉普拉斯变换single-sided Laplacetransform拉普拉斯逆变换inverse Laplacetransform收敛域region ofcon vergenceROC延时特性time delays域平移特性shifting inthe s-domain s域微分特性differentiationinthe s-domains域积分特性integrationinthe s-domain初值定理initial-value theorem终值定理expiration-value复频域卷积定理convolutiontheoreminthecomplex frequencydomain部分分式展开法partial fractionexpansion留数法residue method第章5策动点函数driving function转移函数transfer function极点pole零点zero零极点图zero-pole plot暂态响应transientresponse稳态响应stable response稳定系统stable system一阶系统first ordersystem高通滤波网络high-low filter低通滤波网络low-pass filter二阶系统second system最小相移系统维纳滤波器minimum-phase systemWinner filter卡尔曼滤波器KalmanfIter低通low-pass高通high-pass带通band-pass带阻band-stop有源active无源passive模拟analog数字digital通带pass-band阻带stop-band佩利一维纳准则最佳逼近过渡Paley-Winner criterionoptimum approximation带transition-band通带公差带tolerance band巴特沃兹滤波器Butterworth filter切比雪夫滤波器方框图Chebyshew filterblock diagram信号流图signal flowgraph节点node支路branch输入节点source node输出节点sink node混合节点mix node通路path开通路open path闭通路close path环路loop自环路self-loop环路增益loop gain不接触环路disconnect loop前向通路forward path前向通路增益forward pathgain梅森公式劳斯准则Mason formulaRouth criterion第章6数字系统digital system数字信号处理差分方程单位样值响digital signalprocessing differenceequation应卷积和unit sampleresponse convolutionsum变换Z Z transform序列sequence样值sample单位样值信号unit samplesignal单位阶跃序列unit stepsequence矩形序歹U rectangularsequence单边实指数序列single sidedreal exponential sequence单边正弦序歹U singlesided exponentialsequence斜边序歹U rampsequence复指数序列complex exponentialsequence线性时不变离散系统linear time-invariant discrete-timesystem常系数线性差分方程linear constant-coefficient differenceequation后向差分方程backward differenceequation前向差分方程forward differenceequation海诺塔Tower ofHanoi菲波纳西Fibonacci冲激函数串impulse train第章7数字滤波器digital filter单边变换Z single-sided Z transform双边变换Z two-sided bilateralZtransform事级数power series收敛convergence有界序歹ll limitary-amplitude sequence正项级数positive series有限长序列limitary-duration sequence右边序列right-sided sequence左边序列left-sided sequence双边序列two-sided sequence逆变换Z inverseZtransform围线积分法contour integralmethod幕级数展开法power seriesexpansion域微分z differentiationinthez-domain序歹指数力□权U multiplicationby anexponentialsequence域卷积定理z z-domainconvolutiontheorem帕斯瓦尔定理Parseval theorem传输函数transfer function序列的傅里叶变换discrete-time Fouriertransform:DTFT序列的傅里叶逆变换inverse discrete-time Fouriertransform:IDTFT幅度响应magnitude response相位响应phase response量化quantization编码coding模数变换变换A/D analog-to-digital conversion数模变换变换D/A digital-to-analog conversion第章8端口分析法port analysis状态变量state variable无记忆系统有记忆系统矢量矩阵memoryless systemmemory system常量矩阵输入矢量输出矢量vector-matrixconstant matrixinput vector直接法output vectordirect method间接法indirect method状态转移矩阵系统函数矩阵冲激state transitionmatrix systemfunction matrix响应矩阵朱里准则impulse responsematrix Julycriterion。