Search - frequency domain filter

Search - frequency domain filter - List

[Communication-Mobile] 2189414139200591717859627843 DL : 0: 用途：数字图象处理算法的演示，包括： • 图象的DFT和逆DFT • 图象的FFT和逆FFT • 在图象中加入正弦噪声 • 图象的模板运算实现图象平滑和锐化 • 图象的直方图均衡化 • 图象的对比度拉伸 • 图象的中值滤波 • 图象灰度直方图的显示 • 若干频域滤波器 • 图象的镜像 • 图象的旋转（90度与任意角度） • 图象的放缩 • 其它小算法 -purposes : digital image processing algorithms demo, including : Image # 8226 DFT and inverse DFT Image # 8226 FFT and inverse FFT # 8226 in the image by adding noise sine # 8226 Image Computing template image sharpening and smoothing # 8226 image histogram equalization # 8226 the contrast of the image # 8226 tensile image median filter # 8226 image histogram display # 8226 some frequency-domain filter image # 8226 # 8226 mirror image rotation (90 degrees and arbitrary angle) images # 8226 # 8226 Zooming other small Algorithm
Date : 2008-10-13 Size : 304.11kb User : 例为
[Communication-Mobile] DPbutterwordbilinear DL : 1: IIR数字滤波器巴特沃思设计方法，程序包括输入信号输出信号的时域频域分析图-Butterworth IIR digital filter design methods, and procedures, including the input signal when the output signal frequency domain analysis maps
Date : 2008-10-13 Size : 942byte User : 郑茜
[Communication-Mobile] 2189414139200591717859627843 DL : 0: 用途：数字图象处理算法的演示，包括： • 图象的DFT和逆DFT • 图象的FFT和逆FFT • 在图象中加入正弦噪声 • 图象的模板运算实现图象平滑和锐化 • 图象的直方图均衡化 • 图象的对比度拉伸 • 图象的中值滤波 • 图象灰度直方图的显示 • 若干频域滤波器 • 图象的镜像 • 图象的旋转（90度与任意角度） • 图象的放缩 • 其它小算法 -purposes : digital image processing algorithms demo, including : Image# 8226 DFT and inverse DFT Image# 8226 FFT and inverse FFT# 8226 in the image by adding noise sine# 8226 Image Computing template image sharpening and smoothing# 8226 image histogram equalization# 8226 the contrast of the image# 8226 tensile image median filter# 8226 image histogram display# 8226 some frequency-domain filter image# 8226# 8226 mirror image rotation (90 degrees and arbitrary angle) images# 8226# 8226 Zooming other small Algorithm
Date : 2025-12-13 Size : 304kb User : 例为
[Communication-Mobile] DPbutterwordbilinear DL : 0: IIR数字滤波器巴特沃思设计方法，程序包括输入信号输出信号的时域频域分析图-Butterworth IIR digital filter design methods, and procedures, including the input signal when the output signal frequency domain analysis maps
Date : 2025-12-13 Size : 1kb User : 郑茜
[Communication-Mobile] analogue_bandpass DL : 0: In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters-In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters
Date : 2025-12-13 Size : 1kb User : salar
[Communication-Mobile] Analogue_low_pass DL : 0: In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters-In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters
Date : 2025-12-13 Size : 1kb User : salar
[Communication-Mobile] transformed_digital_highpass DL : 0: In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters-In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters
Date : 2025-12-13 Size : 1kb User : salar
[Communication-Mobile] transformed_digital_bandpass DL : 0: In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters-In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters
Date : 2025-12-13 Size : 1kb User : salar
[Communication-Mobile] transformed_digital_lowpass DL : 0: In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters-In oreder to compare Impulse Invariance method charactristics for transformation analogue filters to digital ones in highpass and bandpass and lowpass formats,here are 6 M-files that simulate a third order butterworth filter analyizing impulse response(time domain) and frequency analysis of analogue and transformed digital filters
Date : 2025-12-13 Size : 1kb User : salar
[Communication-Mobile] digitalfilter_in_C_language DL : 0: We have to design a second order Butterworth filter having a sampling frequency of 20 kHz and -3db cut of frequency at 2 kHz in visual C. Only low frequency signals can pass through this filter and the signals having the frequency higher than frequency called cut off frequency get attenuated by this filter. we will use bilinear transform which is one of the most efficient way of converting a analogue filter to digital filter, we will convert the given transfer function from Laplace transform to z-transform and then we will realize poles and zeroes in the z-domain. And their corresponding frequency response.-We have to design a second order Butterworth filter having a sampling frequency of 20 kHz and-3db cut of frequency at 2 kHz in visual C. Only low frequency signals can pass through this filter and the signals having the frequency higher than frequency called cut off frequency get attenuated by this filter. we will use bilinear transform which is one of the most efficient way of converting a analogue filter to digital filter, we will convert the given transfer function from Laplace transform to z-transform and then we will realize poles and zeroes in the z-domain. And their corresponding frequency response.
Date : 2025-12-13 Size : 437kb User : Mak_m
[Communication-Mobile] 16QAm DL : 0: 采用MATLAB编程，产生一个16QAM基带信号，并进行实数倍插值计算。要求符号率为1 MSymbol/s，采用均方根升余弦滤波成形，滚降系数=0.5。产生{…1，0，1，1，…}的伪随机序列，经过映射、4倍成形滤波、FIR半带滤波、实数倍内插滤波，最后输出4.315倍时域/频域响应。给出信号序列经过各级滤波的时域、频域结果-Using MATLAB programming, resulting in a 16QAM baseband signal, and the real multiples of the interpolation calculation. The requirements of symbol rate 1 MSymbol/s, the root mean square raised cosine filter shape, roll-off factor = 0.5. Generate {1,0,1,1, ...} of the pseudo-random sequence, mapping, four times the shaping filter, FIR half-band filter, in fact, several times interpolation filter, the final output of 4.315 times the time domain/frequency domain response. Given the signal sequence through all levels of filtering the time domain, frequency domain results
Date : 2025-12-13 Size : 234kb User :
[Communication-Mobile] 148113782QPSK_oQPSK DL : 0: QPSK，oQPSK调制仿真，基带信号，经过带通滤波器以后的时域图形，频域波形。(QPSK, oQPSK modulation simulation, baseband signal, through the band pass filter after the time domain graphics, frequency domain waveform.)
Date : 2025-12-13 Size : 1kb User : zyunerl
[Communication-Mobile] 宽带FIR波束形成 DL : 1: 用自适应方法设计具有特定频率响应的FIR滤波器用于进行时域宽带波束形成(Adaptive design of FIR filter with specific frequency response for time domain broadband beamforming)
Date : 2025-12-13 Size : 39kb User : cookun