开通博客赚积分
发布资源赚积分
分类

源码开发语言/平台
当前位置：首页 > 源码/资料 > 通讯/手机编程 > 3G开发 > 查看源码
butt_filt_iir.cpp
资源名称：simulation_wireless_c++.rar　[点击查看]
上传用户：jtjnyq9001
上传日期：2014-11-21
资源大小：3974k
文件大小：2k
源码类别：

3G开发

开发平台：

Visual C++

butt_filt_iir.cpp：源码内容
  1. //======================================================
  2. //
  3. //  File = butt_filt_iir.cpp
  4. //
  5. //  Butterworth Filter by IIR model
  6. //
  8. #include "butt_filt_iir.h"
  9. #include "butterworth_proto.h"
  11. #ifdef _DEBUG
  12.   extern ofstream *DebugFile;
  13. #endif
  15. //======================================================
  16. //  constructor
  18. template < class T>
  19. ButterworthFilterByIir<T>::
  20.       ButterworthFilterByIir( char *instance_name,
  21.                               PracSimModel *outer_model,
  22.                               Signal<T> *in_sig,
  23.                               Signal<T> *out_sig )
  24.                   :AnalogFilterByIir<T>(  instance_name,
  25.                                           outer_model,
  26.                                           in_sig,
  27.                                           out_sig )
  28. {
  29.    MODEL_NAME(ButterworthFilterByIir);
  30.    //OPEN_PARM_BLOCK;
  31.    // All of the parameters needed to specify a 
  32.    // Butterworth filter are common to all the classic
  33.    // types: Chebyshev, Elliptical, Bessel.  Since they
  34.    // will be needed by all types of filters they are
  35.    // read by the AnalogFilter base class.
  38.    if( !Bypass_Enabled)
  39.    {
  40.       // construct a Butterworth prototype
  41.       Lowpass_Proto_Filt = 
  42.             new ButterworthPrototype(Prototype_Order);
  43.       Lowpass_Proto_Filt->FilterFrequencyResponse();
  44.       Lowpass_Proto_Filt->GetDenomPoly(false);
  45.    }
  46.    return;
  47. }
  48. //======================================================
  49. //  constructor for single-sample subordinate version
  51. template < class T>
  52. ButterworthFilterByIir<T>::
  53.          ButterworthFilterByIir( 
  54.                            char *instance_name,
  55.                            PracSimModel *outer_model )
  56.                   :AnalogFilterByIir<T>( 
  57.                               instance_name,
  58.                               outer_model )
  59. {
  60.    MODEL_NAME(ButterworthFilterByIir);
  62.    if( !Bypass_Enabled)
  63.    {
  64.       // construct a Butterworth prototype
  65.       Lowpass_Proto_Filt = 
  66.             new ButterworthPrototype(Prototype_Order);
  67.       Lowpass_Proto_Filt->FilterFrequencyResponse();
  68.       Lowpass_Proto_Filt->GetDenomPoly(false);
  69.    }
  70.    return;
  71. }
  72. //======================================================
  73. //  destructor
  75. template <class T>
  76. ButterworthFilterByIir<T>::~ButterworthFilterByIir(){};
  77. template ButterworthFilterByIir<float>;
  78. template ButterworthFilterByIir<std::complex<float> >;