Description: 一个FIR低通滤波器,最小阻带衰减-30db,带内波动小于1db．用MAXPLUS2设计与仿真。-This is a FIR LPF, with-30dB in stop-band and sigma is less than 1dB. It is designed and simulated on MAXPLUS2. Platform: |
Size: 5120 |
Author:吴健宇 |
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Description: 数字带通滤波器的设计过程。共3个源程序。其中，dos.cpp为带通FIR的源程序，其中的滤波器阶数n，滤波器的低频fln，滤波器的高频fhn，窗函数w，可以按照自己的要求改变。这里采用的是汉宁窗。主函数main.cpp实现输入与fir的h(n)的卷积，输出结果Y(n)，并将其存储在y.txt中。最后，graphics.cpp从y.txt读取数据，再由语句画出波形，可以清楚地看出计算结果是否正确，并进行比较。-digital band-pass filter design process. A total of three sources. Among them, dos.cpp FIR bandpass to the source, the filter order n, the low-frequency filter FLN, the high-frequency filter fhn, window function w, in accordance with the requirements change. Here is the Hanning window. The main function main.cpp achieve the input and fir h (n) convolution, the output Y (n), and store them in y.txt China. Finally, graphics.cpp y.txt read data from and then draw waveform statement, we can clearly see whether calculations are correct, and comparisons. Platform: |
Size: 2048 |
Author:feide |
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Description: 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 filter chooses 19 points FIR.the fs is 8kHz.every datas is memoryed in filed-insp.dat. Platform: |
Size: 1024 |
Author: |
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Description: 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 Platform: |
Size: 3072 |
Author:xiaochong |
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Description: 用矩形窗设计线性相位FIR低通滤波器,给了源代码，已经调试过了。其中要用到一个函数myfreqz要自己编，在这也附上其代码。希望对大家有用。-Rectangular window with the design of linear phase FIR low-pass filter, to the source code, have been debug. To use a function which myfreqz to own, in that its code is also attached. Hope useful for everyone. Platform: |
Size: 1024 |
Author:赵亮 |
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Description: 实现FIR滤波器的设计，举了两个例子带通和低通滤波器，并进行了结果分析-Realization of FIR filter design, to cite two examples of band-pass and low pass filter, and results analysis Platform: |
Size: 164864 |
Author:zhaoyang |
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Description: 低通滤波源码，C与汇编嵌套，效率奇高。为1K，FFT.基于54系列及19点FIR低通滤波C语言程序-Low pass filter source code, C and the compilation of nested efficiency high. For the 1K, FFT. Based on the 54 series and 19 o Platform: |
Size: 24576 |
Author:ray |
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Description: 设计一个数字FIR低通滤波器，其技术指标如下：
Wp=0.2pi Rp=0.25Db
Ws=0.3pi As=50db
试写出MATLAB设计的源程序。-Design a digital FIR low-pass filter, the technical indicators are as follows: Wp = 0.2pi Rp = 0.25Db Ws = 0.3pi As = 50db test designed MATLAB source code to write. Platform: |
Size: 25600 |
Author:高荣 |
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Description: 用各种窗函数设计FIR数字滤波器。
分别用矩形窗和Hamming窗设计线性相位FIR低通滤波器。要求通带截止频率，单位脉冲响应h(n)的长度N=21，绘出h(n)及其幅频响应特性曲线。
-Window function with a variety of FIR digital filter design. Were rectangular window and Hamming window design of linear phase FIR low-pass filter. Requirements of passband cutoff frequency, unit impulse response h (n) of length N = 21, draw h (n) and its amplitude-frequency response curve. Platform: |
Size: 3072 |
Author:刘卫菠 |
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Description: 本文以软件无线电为指导，提出基于CORDIC算法利用FPGA平台数字下变频器设计方案。首先分析下变频器的结构；然后采用模块化设计思想，将数字下变 频的功能模块包括数字控制振荡器、CIC抽取滤波、HBF抽取滤波器、FIR低通滤波器进行分析和FPGA的设计；最后在 MATLAB/DSPBuilder下硬件仿真模块进行仿真并给出仿真结果。-In this paper, software-defined radio as the guidance, based on the CORDIC algorithm uses the FPGA platform, digital down-converter design. First analyzes the structure of down-converter and then use a modular design concept, the digital down-conversion function modules including digital controlled oscillator, CIC decimation filtering, HBF decimation filter, FIR low-pass filter for analysis and FPGA design the final In the MATLAB/DSPBuilder under the hardware emulation module simulation and simulation results. Platform: |
Size: 201728 |
Author:jiang |
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Description: 用矩形窗设计了一个FIR线性相位低通数字滤波器。截止频率0.5π，阶数为21阶。求出了系统函数并画出了幅频响应。-A rectangular window design with linear phase FIR low-pass digital filter. Cutoff frequency 0.5π, the order of 21 bands. Find the system function and plotted the amplitude-frequency response. Platform: |
Size: 8192 |
Author:董晓曦 |
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Description: 本文在基于Matlab的基础上实现低通滤波器的设计，以及对比了几种窗函数的不同效果图。-In this paper, the design and implementation of Matlab low pass filter based on graph, and compared the different effects of several window functions. Platform: |
Size: 34816 |
Author:卢亚光 |
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