Description: 本文是用矩形窗法设计FIR带通滤波器，来滤除音乐信号的噪声-this is rectangular window design FIR bandpass filter to filter out the noise signal Music Platform: |
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Author:xiaochong |
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Description: 本文是用矩形窗法设计FIR带通滤波器，来滤除音乐信号的噪声-this is rectangular window design FIR bandpass filter to filter out the noise signal Music Platform: |
Size: 3072 |
Author:xiaochong |
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Description: ％ y=filter(sig,fmin,fmax)
％ 对信号进行理想滤波，可完成低通，带通
％ sig为被滤波信号
％ fmin为下限频率，当fmin为0时为低通滤波器，当fmin>0时，为带通滤波器
％ fmax为上限频率，fmax>fmin
％ fs为信号的采样频率
％ y为经过滤波后的信号
-％ Y = filter (sig, fmin, fmax)％ of the ideal signal filtering, to be completed by low-pass, band-pass filter％ sig for signal％ fmin is the minimum frequency, when fmin for 0:00 for the low-pass filter, when fmin > 0, for the bandpass filter％ fmax is the upper limit frequency, fmax> fmin％ fs for signal sampling frequency％ y for the filtered signal Platform: |
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Author:liu |
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Description: 实时滤波器，具有精美界面，可以开发自己的应用功能。-You can use 4 types of filters:
- Butterworth
- Chebyshev 1
- Chebyshev 2
- Elliptic
You can use them as:
- Lowpass
- Highpass
- Bandpass
- Stopband
Showing theirs features in frequency, phase and the z plane. After the desing phase you can apply the designed filter in real time to incoming audio signal from the microphone.
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Size: 305152 |
Author: 反对撒 |
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Description: Multirate滤波器设计。模拟带通信号频率范围1KHz—1.1KHz，设计一个采样频率8KHz数字频谱分析系统，要求频率分辨率0.1Hz。-Multirate filter design. Analog bandpass signal frequency range 1KHz-1.1KHz, design a sampling frequency of 8KHz digital spectrum analysis system, required frequency resolution of 0.1Hz. Platform: |
Size: 37888 |
Author:曾茉 |
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Description: 使用每秒10个采样的频率 ，对信号 进行采样，画出原始信号的傅立叶变换X(f) 和理想采样信号的傅立叶变换 。假定重构滤波器是带宽为 的理想低通滤波器，具有带通增益 ，画出重构滤波器的输出-Using 10 samples per second frequency, the signal is sampled, to draw the original signal Fourier transform X (f) and the ideal sampling signal Fourier transform. Reconstruction filter is assumed that the ideal bandwidth low-pass filter with a bandpass gain, draw the output of reconstruction filter Platform: |
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Author:sophy |
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Description: 产生随机信号 并通过带通滤波器 并计算统计特性Any changes made cards can be good results-Random signal generated by band-pass filter and calculate the statistical properties Platform: |
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Author:sunwen |
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Description: 1．找点一段心电信号，画出信号时域波形和频谱图；
2. 利用MATLAB中的随机函数产生噪声加入到心电信号中，使心电信号被污染，读出污染后的号并画出对应信号的时域波形和频谱图；
3．用双线性变换法设计一个Butterworth带通滤波器，输出所设计的滤波器的阶次，分子、分母多项式的系数，画出滤波器的频率响应（幅频响应和相频响应）曲线；（也可以根据自己需要设置滤波器性能指标）
带通通滤波器设计性能指标：fs1=10Hz, fp1=20Hz, fp1=1000Hz, fs2=1200Hz, ap=18dB,as=3dB
4．用滤波器对含噪声的心电信号进行滤波，画出滤波以后信号的时域波形和频谱；
5．比较滤波前后信号变化；
-1. Find a ECG, draw time-domain signal waveform and frequency spectrum
2. Using MATLAB random function in the noise added to the ECG, so that the contaminated ECG signals, read out the contamination of the number and draw the corresponding time domain waveform and frequency spectrum
3. Bilinear transformation method used to design a Butterworth bandpass filter, the output of the order of the filter design, numerator, denominator polynomial coefficients, draw the filter frequency response (amplitude frequency response and phase frequency response) curve (you can also set filters based on their performance needs)
Filter design with all the performance indicators: fs1 = 10Hz, fp1 = 20Hz, fp1 = 1000Hz, fs2 = 1200Hz, ap = 18dB, as = 3dB
4. Filters for ECG signal with noise filtering, after filtering the signal to draw the time-domain waveform and frequency spectrum
5. Compare signal change before and after filtering
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Author:王方 |
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Description: 本文介绍了基于MATLAB软件在《信号与系统》课程教学中的仿真实验,通过抽样信号的表征、周期方波信号的傅立叶级数分解与合成、余弦信号的相加与相乘、RLC带通滤波器的频率特性等仿真实验,说明了将MATLAB应用于教学实践中的重要作用和意义。-This article describes the MATLAB-based software in the " Signals and Systems" course teaching simulation, by sampling the signal characterization, cycle square wave signal of the Fourier series decomposition and synthesis, and the sum of cosine signal is multiplied, RLC bandpass filter the frequency characteristics simulation, MATLAB used to illustrate the important role of teaching practice and significance. Platform: |
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Author:fenghaixiang |
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Description: fir带通滤波器,可将不需要的频率成分的信号滤去-fir bandpass filter unwanted frequency components can be filtered signal Platform: |
Size: 3072 |
Author:夏夏 |
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Description: 基于stm32的数字化语音存储与回放系统的软件设计。该系统经过拾音器采集语音信号，经带通滤波与AGC后，进入AD，然后数据存入SRAM，再由DA送至带通滤波，由喇叭将语音信号恢复。该系统可以很好的存储与回放语音信号。，
本源码是在mdk上开发的。 软件设计分两个模块：压缩解压编码与存储模块。压缩编码有PCM编码和ADPCM编码两种可用按键选择；存储是FSMC存储（256k flash）存储。-Stm32 of digital voice storage and playback system-based software design. The system has been collecting voice signal pickup by the bandpass filter and AGC, into the AD, then the data are stored in SRAM, band-pass filter is then sent by the DA, to restore the voice signal from the speaker. The system can be a good storage and playback voice signal. , The source is developed in mdk. The software design is divided into two modules: the compression and decompression coding and storage module. Compression PCM coding and ADPCM encoding the two available buttons store is the the FSMC store (256k flash) storage. Platform: |
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Author:summery |
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Description: 用Matlab产生一个频率为1Hz、功率为1的余弦信源，设载波频率为10Hz，并画出：
1.DSB调制信号及其功率谱密度；
2.将已调信号解调，在时域内将解调后的波形与原信号进行对比；
3.A=2的AM调制信号及其功率谱密度；
4.SSB调制信号及其功率谱密度；
5.在信道中各自加入经过带通滤波器后的窄带高斯白噪声，功率为0.1，解调各个信号，并画出解调后的波形。
-Matlab produce a frequency for 1 hz, power for 1 cosine source, a carrier frequency for 10 hz and draw the:
1. The DSB modulation signal and power spectral density
2. Will be modulated signal demodulation, in the time domain waveform and the demodulation of the original signal are compared
3. A = 2 AM modulation signal and power spectral density
4. SSB modulation signal and power spectral density
5. In the channel of each join after bandpass filter after the narrow band gaussian white noise, power is 0.1, each signal demodulation, and draw the demodulation of waveform.
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Author:江晨城 |
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Description: This program Is an IR bandpass filter which filters the signal that is needed for processing. Platform: |
Size: 1024 |
Author:kwasi |
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Description: 本文件为一个word文档。本文档基于MATLAB平台设计了带通滤波器，滤除信号中特定频率成分，具体功能word中有详细说明。本文件旨在通过一个简单的实例，说明基于MATLAB的数字滤波器设计原理，并在最后总结了数字滤波器的设计规律，文件内容对初学者有很大的帮助。-This document is a word document. This document is based on MATLAB platform design bandpass filter, filter out specific frequency component signal, word specific functions are described in detail. This document aims through a simple examples to illustrate the digital filter design based on the principle of MATLAB and concluded the design rule of the digital filter, the file content is very helpful for beginners. Platform: |
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Author:wangfeng |
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Description: C语言实现带通滤波器，可以直接运行。在信号处理过程中非常有用-C language implementation bandpass filter, which can be run directly.In the process of signal processing is very useful Platform: |
Size: 1024 |
Author:miaoxin |
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Description: 倍频程带通滤波器,实现倍频程分析和计算信号的有效值-Octave bandpass filter to achieve octave analysis and calculate the effective value of the signal Platform: |
Size: 16384 |
Author:何六道 |
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Description: Bandpass Filters
A band pass filter is an electronic circuit that allows the passage of a
Frequency range of a signal and attenuates the remaining frequencies.
We present three bandpass filters that added deliver the audible spectrum
By the human being. These three filters are low pass filter, medium pass filter and filter
Passes high. Platform: |
Size: 247808 |
Author:uxeer
|
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Search - signal bandpass filter