Location:
Search - low cut
Search list
Description: 用小波进行地震信号低切处理的例子-seismic wavelet signal processing low-cut examples
Platform: |
Size: 3327 |
Author: 小青 |
Hits:
Description: 用小波进行地震信号低切处理的例子-seismic wavelet signal processing low-cut examples
Platform: |
Size: 3072 |
Author: 小青 |
Hits:
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
Platform: |
Size: 18432 |
Author: qjsky |
Hits:
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)
Platform: |
Size: 1024 |
Author: sherman1944 |
Hits:
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.
Platform: |
Size: 28672 |
Author: 柴源 |
Hits:
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
Platform: |
Size: 1024 |
Author: dicunxia |
Hits:
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.
Platform: |
Size: 189440 |
Author: wanghui |
Hits:
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.
Platform: |
Size: 620544 |
Author: 杨战 |
Hits:
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.
Platform: |
Size: 447488 |
Author: Mak_m |
Hits:
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.
Platform: |
Size: 2348032 |
Author: baby |
Hits:
Description: HFSS 高低阻抗滤波器 5节，可调参数，优化-HFSS high and low impedance filter 5, adjustable parameters, optimization
Platform: |
Size: 8192 |
Author: wangchao |
Hits:
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
Platform: |
Size: 71680 |
Author: 刘文珍 |
Hits:
Description: 问题是高切滤波或低通滤波，如果采用硬件实现，速度最快，但是现在计算机速度这么快，硬件实现起来相对麻烦，成本高，且灵活性性差，
软件实现相对方便多了，具体体的操作步骤如下（频率域）
先对数据作正FFT,再对变换后的频域数据乘以滤波因子，滤波因子的选择有理想高通、巴特沃斯高通、指数高通、梯形高通，一般选择梯形高通滤波因子，具体原因你可从数字信号处理的书上找到，，接下来将数据再作逆FFT就是了，还有就是在空间域作滤波，这里有一个带同滤波的程序的程序，你可参考一下，（将低切参数设为零就是你的高切滤波）-The problem is the high cut filter or low pass filter, if the use of hardware, the fastest, but now the computer speed so fast, hardware problems are relatively high cost and poor flexibility,
Software is relatively easy to achieve more concrete steps are as follows body (frequency domain)
Is the first of the data for FFT, then the transformed frequency domain data multiplied by the filter factor, choose the ideal filter factor of the high-pass, Butterworth high-pass, index of high-pass, high pass ladder, generally choose high-pass ladder filter factor the specific reason you can book on digital signal processing found, then the data further inverse FFT is it, there is in the spatial domain for filtering, there is a filtering process with the same program, you can refer to , (the low-cut parameters set to zero is your high-cut filter)
Platform: |
Size: 7168 |
Author: 夏燕苹 |
Hits:
Description: Filter type: Low Pass
Filter model: Butterworth
Filter order: 2
Sampling Frequency: 1000 Hz
Cut Frequency: 100.000000 Hz
Coefficents Quantization: 8-bit
Platform: |
Size: 1024 |
Author: reza g |
Hits:
Description: UDP群聊啊此部分包括全路径文件名、道号、采样率、延迟时间、低截、测线号、炮点位置、检波器位置-UDP group chat in this section include the full path to the file name, track number, sample rate, delay time, low-cut, measured line number, the location of the shot, the detector position
Platform: |
Size: 1024 |
Author: jhon |
Hits:
Description: 有限冲击响应模拟滤波器，可自行设计滤波器类型，拓扑结构、高、低截止频率
增益、窗函数等等，滤波效果好。-Limited impact response analog filter, can to design filter types, topology structure, high and low cut-off frequency Gain, window function and so on, filtering effect is good.
Platform: |
Size: 75776 |
Author: 周志鹏 |
Hits:
Description: 对证件图片进行是否符合规格设计算法，设计算法实现双眼定位、人头高度计算、图像清晰度（防止使用小尺寸照片放大使用）、人头端正程度、低胸装等判断。-Picture of documents algorithm meets design specifications, design algorithm eyes positioning, head height calculation, image clarity (to prevent the use of small size picture), the degree of head upright, low cut and other judgments.
Platform: |
Size: 2396160 |
Author: 林盛祥 |
Hits:
Description: This function alculates Fourier Amplitude spectra of the time series of uncorrected acceleration and velocity depending on the FFTformat argument and produce a plot.Visual inspection of the fas is helpful for setting a low cut frequency in filter design and implementation.
Platform: |
Size: 2048 |
Author: fm |
Hits:
Description: 音频处理的一些算法，包括像压缩，压限之类的动态处理，一些音效算法代码，和高低切EQ-Some of the audio processing algorithms, including image compression, compression, such as the dynamic process, some of the audio algorithm code, and high and low cut EQ, etc.
Platform: |
Size: 18432 |
Author: xiaojing |
Hits:
Description: the circuit is in Proteous.
Controller senses temperature lm35 and turns pin 16 high or low according to the temperature limits.
state of jumper describe two conditions of operation.-the circuit is in Proteous.
Controller senses temperature lm35 and turns pin 16 high or low according to the temperature limits.
state of jumper describe two conditions of operation.
Platform: |
Size: 120832 |
Author: M Umer |
Hits: