【滤波器】基于高通+低通+带通+带阻FIR滤波器设计含Matlab源码

1 简介

本文利用kaiser窗实现了FIR带通数字滤波器的设计,设计结果符合FIR数字滤波器技术指标要求.

2 部分代码

%--------------------------------------------------------------------------%利用kaiser窗设计带通滤波器m文件%默认输入参数：   N=64%                beta=5.568  %                wl=0.2%                wh=0.8%输出参数：      低通带边界（wlh）%               低阻带边界（wls）%               高通带边界（whp）%               高阻带边界（whs）%               通带波纹%               阻带衰减%--------------------------------------------------------------------------function varargout = bpfilter(varargin)% BPFILTER M-file for bpfilter.fig%      BPFILTER, by itself, creates a new BPFILTER or raises the existing%      singleton*.%%      H = BPFILTER returns the handle to a new BPFILTER or the handle to%      the existing singleton*.%%      BPFILTER('CALLBACK',hObject,eventData,handles,...) calls the local%      function named CALLBACK in BPFILTER.M with the given input arguments.%%      BPFILTER('Property','Value',...) creates a new BPFILTER or raises the%      existing singleton*.  Starting from the left, property value pairs are%      applied to the GUI before bpfilter_OpeningFunction gets called.  An%      unrecognized property name or invalid value makes property application%      stop.  All inputs are passed to bpfilter_OpeningFcn via varargin.%%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one%      instance to run (singleton)".%% See also: GUIDE, GUIDATA, GUIHANDLES% Edit the above text to modify the response to help bpfilter% Last Modified by GUIDE v2.5 29-Jun-2007 13:03:07% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name',       mfilename, ...                   'gui_Singleton',  gui_Singleton, ...                   'gui_OpeningFcn', @bpfilter_OpeningFcn, ...                   'gui_OutputFcn',  @bpfilter_OutputFcn, ...                   'gui_LayoutFcn',  [] , ...                   'gui_Callback',   []);if nargin & isstr(varargin{1})    gui_State.gui_Callback = str2func(varargin{1});endif nargout    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});else    gui_mainfcn(gui_State, varargin{:});end% End initialization code - DO NOT EDIT% --- Executes just before bpfilter is made visible.function bpfilter_OpeningFcn(hObject, eventdata, handles, varargin)% This function has no output args, see OutputFcn.% hObject    handle to figure% eventdata  reserved - to be defined in a future version of MATLAB% handles    structure with handles and user data (see GUIDATA)% varargin   command line arguments to bpfilter (see VARARGIN)% Choose default command line output for bpfilterhandles.output = hObject;% Update handles structureguidata(hObject, handles);% UIWAIT makes bpfilter wait for user response (see UIRESUME)% uiwait(handles.figure1);%--------------------------------------------------------------------------function edit_beta_Callback(hObject, eventdata, handles)% hObject    handle to edit_beta (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit_beta as text%        str2double(get(hObject,'String')) returns contents of edit_beta as a double% --- Executes during object creation, after setting all properties.function edit_wl_CreateFcn(hObject, eventdata, handles)% hObject    handle to edit_wl (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.%       See ISPC and COMPUTER.if ispc    set(hObject,'BackgroundColor','white');else    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));endfunction edit_wl_Callback(hObject, eventdata, handles)% hObject    handle to edit_wl (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit_wl as text%        str2double(get(hObject,'String')) returns contents of edit_wl as a double% --- Executes during object creation, after setting all properties.function edit_wlp_CreateFcn(hObject, eventdata, handles)% hObject    handle to edit_wlp (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.%       See ISPC and COMPUTER.if ispc    set(hObject,'BackgroundColor','white');else    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));endfunction edit_wlp_Callback(hObject, eventdata, handles)% hObject    handle to edit_wlp (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit_wlp as text%        str2double(get(hObject,'String')) returns contents of edit_wlp as a double

3 仿真结果

4 参考文献

[1]王鸿伟. 基于MATLAB的FIR低通滤波器设计[J]. 兰州工业高等专科学校学报, 2007, 14(4):4.

博主简介：擅长智能优化算法、神经网络预测、信号处理、元胞自动机、图像处理、路径规划、无人机等多种领域的Matlab仿真，相关matlab代码问题可私信交流。

部分理论引用网络文献，若有侵权联系博主删除。

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【滤波器】基于高通+低通+带通+带阻FIR滤波器设计含Matlab源码

1 简介

2 部分代码

3 仿真结果

4 参考文献

博主简介：擅长智能优化算法、神经网络预测、信号处理、元胞自动机、图像处理、路径规划、无人机等多种领域的Matlab仿真，相关matlab代码问题可私信交流。

【滤波器】基于高通+低通+带通+带阻FIR滤波器设计含Matlab源码相关推荐

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