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基于MATLAB设计的FIR低通滤波器,并对语音进行了滤波处理-MATLAB-based design of FIR low-pass filter, and a voice filter processing
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ex5_1 I-型线性相位FIR滤波器
ex5_2 II-型线性相位FIR滤波器
ex5_3 III-型线性相位FIR滤波器
ex5_4 IV-型线性相位FIR滤波器
ex5_5 矩形窗频响
ex5_6 希尔伯特变换器设计-汉宁窗
ex5_7 低通滤波器设计-汉明窗
ex5_8 带通滤波器设计-布莱克曼窗
ex5_9 低通滤波器设计-凯塞窗
ex5_11 频率采样技术:低通,朴素法
ex5_12 频率采样技术:低通, 最优法T1 & T2
ex5_13
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设计一个数字FIR低通滤波器,其技术指标如下:Wp=0.2 Rp=0.25 Ws=0.3 As=50-Design a digital FIR low-pass filter, the technical indicators are as follows: Wp = 0.2 Rp = 0.25 Ws = 0.3 As = 50
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FIR low pass filter design using MATLAB
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DSP TMS320C54X fir滤波器程序设计 高通低通-DSP TMS320C54X fir filter program design high-pass low-pass
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用窗函数法设计线性相位FIR低通滤波器。要求通带截止频率ωc=π/4,单位脉冲响应h(n)的长度N=23。绘出h(n)及其幅频响应特性曲线-Window function with linear phase FIR design a low pass filter. Required pass-band cutoff frequency ωc = π/4, unit impulse response h (n) of length N = 23. Plot h (n) and frequency
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DES3200实验系统的模拟信号输出通道产生一个1KHz 的方波,然后利用信号输入通道对产生的方进行低通滤波,得到一个1KHz 的正弦信号,并使用CCS 的图形显示工具显示输入和输出的波形。这里我们使用的是一个46阶的对称结构的FIR低通滤波器,其采样频率Fs为25KHZ,通带截止频率 1KHZ,阻带截止频率为3KHZ,阻带衰减为-60dB。-DES3200 experimental system analog output channel generates a 1KHz square wav
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FIR低通滤波器(语音低通滤波器设计低码)
有音乐效果-FIR low-pass filter (low pass filter design low voice code) has sound effects
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用ds来实现FIR低通滤波器的硬件语言,已进行过编译,没有错误-Ds to achieve with FIR low-pass filter hardware language, has been compiled, no errors
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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。-This is a speech signal (0.3 kHz to 3.4 kHz) to low pass filtering of C language program. Low pass filter cutoff frequency for 800 Hz, filter adopting the shock response limit
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FIR滤波器, 设计一个线性相位有限冲激响应低通滤波器,使其满足如下指标:通带边界为2kHz,阻带边界为2.5kHz,通带波纹 =0.005,阻带波纹 =0.005,抽样率为10kHz。采用多尔夫-切比雪夫窗进行设计,进行频谱分析。-FIR filter, design a linear phase FIR low-pass filter to meet the following indicators: passband border to 2kHz, stopband border to 2
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基于TMS320F2812DSP对FIR低通滤波器进行设计与实现,其中的汇编程序通过实验验证-FIR low-pass filter based TMS320F2812DSP Design and implementation of which assembler verified by experiments
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利用DSP对FIR低通滤波器进行设计的方法进行了讨论,给出了汇编的源程序,-DSP FIR low-pass filter design methods, a compilation of the source is given,
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基于MATLAB的FIR数字低通滤波器的实现设计-The realization of the FIR digital low-pass filter based on MATLAB design
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FILTER FIR LOW PASS ON MSP430F2916
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用矩形窗,汉宁窗,三角窗,布拉克曼窗设计FIR低通数字滤波器
-With a rectangular window, Hanning window, triangle window, Blackman window FIR low-pass digital filter design
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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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实现用FIR低通滤线性相位滤波器滤除声音中的噪声-The FIR low-pass filtered linear phase filter is used to filter the noise in the sound
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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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