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搜索资源 - FIR low pass Filter
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这是一个对语音信号(0.3kHz~3.4kHz)进行低通滤波的C语言程序, 低通滤波的截止频率为800Hz,滤波器采用19点的有限冲击响应FIR滤波。 语音信号的采样频率为8kHz,每个语音样值按16位整型数存放在insp.dat文件中。-This c program is a low pass filter for radio signal 0.3kHz-3.4kHz.The stop frequence of this
filter is 800hz.This digtal filte
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用凯泽方程计算一个线性相位
FIR低通滤波器的阶数-Keyser equation with a linear phase FIR low-pass filter in order
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这是用三角窗设计的FIR低通滤波器,来消除音乐信号的噪声-This is the triangular window design FIR low-pass filter to eliminate the noise signal Music
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使用DSP和MATLAB设计的一个低通FIR滤波器,基本上实现了滤波的效果-use and MATLAB DSP design a FIR low-pass filter, basically realize the filtering effect
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基于凌阳单片机的16位FIR数字低通滤波器源码-based Sunplus MCU 16 FIR low-pass filter FOSS
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FIR汉明窗滤波器和IIR双线性变换法设计的低通滤波器,用于心电信号的滤波。,Hamming window FIR and IIR filter design bilinear transform low-pass filter for filtering ECG.
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用窗函数法hamming设计的FIR数字低通滤波器,能够实现心电信号中随机噪声的去除,Hamming window function method with the design of FIR digital low-pass filter, ECG can be achieved in the removal of random noise
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先采集一单声道音频信号(.wav)并用WAVREAD文件采样读取,并对其进行频谱分析。分别用窗函数法和双线性变换法设计低通、高通、带通三种FIR滤波器和IIR滤波器。用M文件使信号通过滤波器并对输出信号进行时域和频域分析。-First acquisition of a mono audio signal (. Wav) files with sampling WAVREAD read, and their spectral analysis. Window function, respectiv
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1. Design an IIR band pass filter with order 12, cut off frequency of .5Hz and 20 hz. Assumed sampling frequency is 10000Hz.
2. Design a FIR low pass filter with order 64, cut off frequency of 20Hz. Assumed sampling frequency is 10000Hz.
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滤波器是信号处理中常用的处理方式,利用虚拟仪器实现FIR低通滤波器。-Filter is a common processing method in signal processing, using virtual instrument to achieve FIR low-pass filter.
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FIR低通滤波器和FIR带通滤波器程序,带频谱显示,希望对大家有用-FIR low-pass filter and a FIR bandpass filter program, with spectrum display, hope to be useful
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基于DSPF28335的FIR低通滤波器代码,截止频率5-DSP28335 based on the code of FIR low-pass filter cut-off frequency of 500
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在MATLAB中实现了FIR低通滤波器的设计仿真-In MATLAB to achieve the FIR low-pass filter design and simulation
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窗函数设计FIR低通滤波/带阻滤波,内有详细注释。由其适合初学者学习并应用。-Window function design FIR low-pass filter/band stop filter, detailed notes. It is suitable for beginners to learn and apply.
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(1)录制一段语音信号,完成对信号的采样,画出信号的时域波形和频谱图,确定信号的频谱范围;
(2)给信号叠加噪声(噪声类型分为如下几种:a白噪声;b单频噪色(正弦干扰);c多频噪声(多正弦干扰);d其它干扰。),画出受噪声干扰的信号时域波形和频谱图;
(3)采用窗函数法设计FIR低通滤波器,画出滤波器的频响特性图;
(4)用所设计的滤波器对受噪声影响的信号进行滤波,画出滤波后语音信号的时域波形图和频谱图;
(5)对滤波前后的信号进行对比,分析信号的变化;回放语音信号,并与原始语音信号对比
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1、验证窗函数 N 变化时,验证其频谱主瓣副瓣比、主瓣宽度的变化。
a)矩形窗函数的 N 变化时,验证其其频谱主瓣副瓣幅度比基本不会发生变化,
而主瓣宽度将会变窄。这说明,当用矩形窗函数设计滤波器时,增大 N 不能使
得阻带衰减减小,但能够减小过渡带。
b)再选取其他的窗如 hamming/hanning 窗,验证当 N 变化时,其频谱主瓣宽
度变化、主瓣副瓣比值变化情况。
2、用窗函数法设计线性相位 FIR 低通,通带截止频率 wp=0.5PI, 阻带截止频率 ws=0.6PI,
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fir 滤波器的程序文件和测试文件,仿真数据和matlab仿真数据进行过比对,matlab采用fdatool生成的低通滤波器,采样率为24兆,通带2.5M,截止频率为5M(FIR filter program files and test files, simulation data and MATLAB simulation data have been compared, Matlab using FDATool generated low-pass filter, sampling rat
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用verilog语言实现数字电路低通滤波器(Implementation of digital circuit low-pass filter using Verilog language)
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FIR数字滤波器:里面包含四部分程序,分别对一个给定的信号进行低通滤波,高通滤波,带通滤波,带阻滤波(程序有详细的注释,适合新手学习FIR型数字滤波器)(FIR digital filter: which contains four parts of the program, respectively, for a given signal low-pass filter, high pass filter, band pass filter, band stop filter (detaile
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设计一个 1MHz 的 FIR 低通滤波器。 要求:
① 时钟信号频率 16MHz;
② 输入信号位宽 8bits,符号速率 16MHz
③ 要求在 Matlab 软件中进行 FIR 滤波器浮点和定点仿真,并确定 FIR 滤波器抽头系数
④ 写出测试仿真程序。(Design a 1MHz FIR low pass filter.
Requirements:
(1) clock signal frequency 16MHz;
(2) input signal bit width
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