數(shù)字信號處理(DSP)專業(yè)詞匯.doc

系統(tǒng)：system 信號：signal 模擬信號：analog signal 數(shù)字信號：digital signal模/數(shù)轉(zhuǎn)換：analog-to-digital conversion 頻譜：spectrum數(shù)字濾波：digital filtering 濾波器：filter采樣：sample 保持：hold數(shù)字代碼：digital code 量化電平： quantization level 時域：time domain 頻域：frequency domain低頻：low frequency 高頻：high frequency低通濾波器：low pass filter 高通濾波器：high pass filter帶通濾波器：band pass filter 帶阻濾波器：band stop filter零階保持信號:zero order hold signal 平滑：smooth采樣周期：sampling period 頻率分量:frequency elements圖像處理：image processing 傳感器：sensor電壓：voltage 電流：current anti-aliasing filter 抗混疊濾波器 anti-imaging filter 抗鏡像濾波器 sampling interval 采樣間隔 =sampling period 采樣周期 sampling frequency 采樣頻率 =sampling rate 采樣速率 sampling theorem 采樣定理 Nyquist sampling rate 奈奎斯特采樣率 Nyquist frequency 奈奎斯特頻率 Nyquist range 奈奎斯特范圍 oversampling 過采樣 undersampling 欠采樣 quantization step 量化步長 quantization noise量化噪聲 bit rate 比特率 數(shù)字函數(shù)：digital function 合成函數(shù)：composite function 二維數(shù)字信號：two-dimensional digital signal 語音信號：speech signal 量化方案：quantization scheme 脈沖函數(shù)：impulse function 單位脈沖函數(shù)：unit impulse function 階躍函數(shù)：step function 冪函數(shù):power function 指數(shù)函數(shù): exponential function 正弦函數(shù)：sine function 余弦函數(shù)：cosine function 復(fù)平面：complex plain 歐拉恒等式：Eulers identity 模擬頻率：analog frequency 數(shù)字頻率:digital frequency 采樣間隔：sampling interval 相移：phase shift 像素：pixel 灰度級：gray scale roll-off 滾降 gain 增益 pass band 通帶 stop band 阻帶 bandwidth 帶寬 linear system 線性系統(tǒng) superposition 疊加原理 time-invariant 時不變 causal system因果系統(tǒng) difference equation差分方程 filter coefficient濾波器系數(shù) recursive filter 遞歸濾波器 nonrecursive filter 非遞歸濾波器 finite word length effect有限字長效應(yīng) impulse response 脈沖響應(yīng)infinite impulse response （IIR)無限脈沖響應(yīng) finite impulse response (FIR)有限脈沖響應(yīng) moving average filter 滑動平均濾波器 step response 階躍響應(yīng) z transform z變換 region of convergence 收斂域 inverse z transform 逆z變換 transfer function 傳輸函數(shù) partial fraction expansion 部分分式展開 cover-up method 覆蓋法 zero 零點 pole 極點 marginally stable 臨界穩(wěn)定 unstable 不穩(wěn)定 傅立葉變換：Fourier Transform 濾波器形狀：filter shape 頻率響應(yīng):frequency response 頻率特性：frequency characteristics 離散時間傅立葉變換：Discrete Time Fourier Transform 幅度響應(yīng)：magnitude response 相位響應(yīng)：phase response 傳輸函數(shù)：transfer function 相位差：phase difference 采樣頻率：sampling frequency white noise 白噪聲 magnitude spectrum 幅度頻譜 phase spectrum 相位頻譜 discrete Fourier series（DFS)離散傅里葉級數(shù) 有限脈沖響應(yīng)濾波器：finite impulse response filter 無限脈沖響應(yīng)濾波器：infinite impulse response filter 相位失真：phase distortion 理想低通濾波器：idle low pass filter 窗函數(shù)：window function 穩(wěn)定性：stability 通帶波紋：pass band ripple 阻帶波紋：stop band ripple 通帶邊緣頻率:pass band edge frequency 過渡帶寬度：transition width 矩形窗：Rectangular Window 漢寧窗：Hanning Window 哈明窗:Hamming Window 布萊克曼窗:Blackman Window 凱塞窗:Kaiser Window 項數(shù):number of terms 衰減:attenuation 增益:gain 采樣頻率:sampling frequency infinite impulse response filter(IIR)無限脈沖響應(yīng)濾波器 bilinear transformation 雙線性變換 prewarping equation 預(yù)扭曲方程 Butterworth filter 巴特沃斯濾波器 Chebyshev Type I filter 切比雪夫I 型濾波器 Chebyshev Type II filter 切比雪夫II 型濾波器 elliptic filter 橢圓濾波器 Impulse invariance method 脈沖響應(yīng)不變法 discrete Fourier transform (DFT) 離散傅里葉變換 inverse DFT 逆離散傅里