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Description: 用matlab观察矩形截断低通滤波器的增益特性-using Matlab observation rectangular cut-off low-pass filter characteristic Gain
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Size: 18432 |
Author: qjsky |
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Description:
ch10_1_1：利用函数imfilter实现图像滤波（§10.1.3）
ch10_2_1：利用频率变换法生成一个2-D滤波器（§10.2.2）
ch10_2_2：利用频率采样法生成一个2-D滤波器（§10.2.3）
ch10_2_3：利用窗口法生成一个2-D滤波器（§10.2.4）
ch10_2_4：设计一个截止频率为0.5的理想低通滤波器（§10.2.5）
-ch10_1_1: the use of function imfilter realize image filtering (§ 10.1.3) ch10_2_1: use of frequency transformation method to generate a 2-D filters (§ 10.2.2) ch10_2_2: the use of the frequency sampling method to generate a 2-D filter (§ 10.2. 3) ch10_2_3: use the window method to generate a 2-D filters (§ 10.2.4) ch10_2_4: to design a cut-off frequency of 0.5 the ideal low-pass filter (§ 10.2.5)
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Size: 1024 |
Author: sherman1944 |
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Description: 通过这个程序，可以更加深入的了解FIR滤波是如何实现的。用AVR单片机 ATMEGA16L实现32阶FIR低通滤波器设计，低通截止频率为200HZ。原始信号经过AD采集后进行FIR运算，处理好的数据通过串口输出。-Through this process, can be more in-depth understanding of how the FIR filter is realized. AVR Single Chip with 32 bands ATMEGA16L realize FIR low-pass filter design, low-pass cut-off frequency of 200HZ. Original signal after AD computing FIR after collection, a good deal of data through the serial output.
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Size: 28672 |
Author: 柴源 |
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Description: 利用IIR滤波器设计一个低通滤波器，能够分析到电力系统中的三次谐波，要求满足如下指标：截止频率150HZ，阻带衰减≥30db-IIR filter design using a low-pass filter, to analyze the power system in the third harmonic, the requirements to meet the following indicators: cut-off frequency 150HZ, stopband attenuation ≥ 30db
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Size: 1024 |
Author: dicunxia |
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Description: 利用FIR滤波器设计一个低通滤波器，能够分析到电力系统中的三次谐波，要求满足如下指标：截止频率150HZ，阻带衰减≥30db-FIR filter design using a low-pass filter, to analyze the power system in the third harmonic, the requirements to meet the following indicators: cut-off frequency 150HZ, stopband attenuation ≥ 30db
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Size: 1024 |
Author: dicunxia |
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Description: 基于matlab的，不同截断半径时低通滤波滤波,及傅立叶反变换再现图像，简单易学，希望对你有帮助。-Matlab based on different cut-off low-pass filter at a radius of filtering, and Fourier Transform reproduce images, easy to learn, and they hope to help you.
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Size: 189440 |
Author: wanghui |
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Description: IIR数字滤波器的设计，抽样频率为2*pi*1.5*10^4,通带截止频率为2*pi*1.5*10^3-IIR digital filter design, sampling frequency of 2* pi* 1.5* 10 ^ 4, pass-band cut-off frequency of 2* pi* 1.5* 10 ^ 3
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Size: 1024 |
Author: nanxing |
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Description: 用于频域滤波的m函数，接受输入一幅图像和一个滤波函数，输出经滤波和剪切后的图像。还有一个高通滤波函数。-For frequency domain filtering m function, to accept the importation of an image and a filter function, the output cut by the filtering and image. There is also a high-pass filtering function.
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Size: 1024 |
Author: 乔连芝 |
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Description: 低通滤波容许低频信号通过, 但减弱[或减少]频率高于截止频率的信号的通过。对于不同滤波器而言,每个频率的信号的减弱程度不同。-Low-pass filter allows low-frequency signals, but weakened [or decrease] the frequency higher than the cut-off frequency of the signal through. For different filter for each frequency of the signal weakened to different degrees.
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Size: 620544 |
Author: 杨战 |
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Description: 滤波器采样频率为600Hz ，截止频率100Hz 的10阶低通滤波器。并用汇编语言设计一个实现上面要求的FIR 滤波器
(2)要求设计滤波器采样频率为8000Hz ，截止频率500Hz 的40阶低通滤波器。用C语言设计一个实现上面要求的FIR 滤波器
-Filter sampling frequency of 600Hz, the 10 cut-off frequency 100Hz-order low-pass filter. Design and assembly language to achieve the above requirements of a FIR filter (2) require the design of filter for sampling frequency 8000Hz, the 40 cut-off frequency 500Hz-order low-pass filter. Design using C language to achieve the above requirements of a FIR filter
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Size: 378880 |
Author: cs |
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Description: matlab编写截断半径65时低通滤波器对与图像的影响，画图比较滤波前后的对比图。-matlab preparation of cut-off radius of 65 when the low-pass filter and image of the effect of drawing the contrast to compare before and after filtering Fig.
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Size: 1024 |
Author: 张兰 |
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Description: 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.
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Size: 447488 |
Author: Mak_m |
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Description: 一个无源二阶低通滤波器，改变电阻与电容值可以改变截止频率，已试过，好用。-A passive second-order low-pass filter and change the resistance and capacitance values can change the cut-off frequency has been tried, easy to use.
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Size: 2348032 |
Author: baby |
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Description: 电吉他失真音效器
这个项目是一个个性化的失真踏板，提供更大的控制权的音乐。不同于商业踏板，这是严格的模拟，这个单位特点的数字能力，提供了一个计时器来控制低通滤波器截止频率以及存储的各种设置。中心的设计是一种CY8C27443微控制器。-Electric Guitar Distortion Unit
Designed by a musician, this project is a personalized distortion pedal that provides greater control over music. Unlike commercial pedals, which are strictly analog, this unit features digital capability that provides a timer to control the low-pass filter cut-off frequency as well as storage for various settings. The heart of the design is a CY8C27443 microcontroller.
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Size: 1083392 |
Author: xxxueok |
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Description: 图像锐化，包含拉普拉斯锐化法 4邻域模板
巴特沃斯高通滤波器锐化， 阶数M=3 截断频率D0=40，梯度算子锐化 sobel和prewi-Image sharpening, including Laplacian sharpening four neighborhood template Butterworth high-pass filter sharpening, the order M = 3 cut off frequency D0 = 40, sharpening sobel gradient operator and prewitt
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Size: 5120 |
Author: 马雪亮 |
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Description: 巴特沃斯低通滤波器的MFC程序，FS是采样频率，fp是截止频率，大家-Butterworth low-pass filter MFC process, FS is the sampling frequency, fp is the cut-off frequency, we take a look at
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Size: 40960 |
Author: 金隆 |
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Description: 设计一个IIR数字低通滤波器， 逼近一组模拟滤波器的指标参数（通带截止频率Wp=2*pi*2000rad/s,阻带边界频率Ws=2*pi*3000rad/s,通带波纹 Rp=3db, 阻带衰减Rs=15db, 采样频率f=10000Hz）； 分别用脉冲响应不变法和双线性变换法实现设计，列出传递函数并描绘模拟和数字滤波器的幅频和相频响应曲线。用上述设计滤波器完成几组给定信号的滤波，证明滤波器的有效性和滤波范围限制.-Design a IIR digital low-pass filter, approaching a group of analog filters indicator parameters (pass-band cut-off frequency Wp = 2* pi* 2000rad/s, stop-band edge frequency Ws = 2* pi* 3000rad/s, pass-band ripple Rp = 3db, stop-band attenuation Rs = 15db, the sampling frequency f = 10000Hz) were used to change the impulse response method and bilinear transformation method for design, list and describe the transfer function of analog and digital filter amplitude-frequency and phase-frequency response curve. A filter was designed with the completion of the above-mentioned groups of a given signal filtering, to prove the effectiveness of filters and filter limit
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Size: 71680 |
Author: 刘文珍 |
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Description: Filter type: Low Pass
Filter model: Butterworth
Filter order: 2
Sampling Frequency: 1000 Hz
Cut Frequency: 100.000000 Hz
Coefficents Quantization: 8-bit
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Size: 1024 |
Author: reza g |
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Description: 仿真巴特沃思、切比雪夫模拟低通滤波器的设计方法；利用模拟域频率变换设计模拟高通、带通、带阻滤波器的方法。-Simulation Butterworth, cut analog design method Chebyshev low-pass filter using an analog frequency domain converting analog design high pass, band pass, band stop filter method.
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Size: 8192 |
Author: |
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Description: 低通滤波巴特沃斯低通滤波器的MFC程序，FS是采样频率，fp是截止频率，大家-Butterworth low-pass filter MFC process, FS is the sampling frequency, fp is the cut-off freq(Butterworth low-pass filter MFC process, FS is the sampling frequency, fp is the cut-off freq)
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Size: 39936 |
Author: 王玉
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