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author | n4hy | 2008-10-03 22:30:56 +0000 |
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committer | n4hy | 2008-10-03 22:30:56 +0000 |
commit | 640f3127479990181f7ec7381c6d67a5d1d689ac (patch) | |
tree | 41dfbf983d692305932188fc29b8f52fc6f413c3 /gnuradio-core/src/lib | |
parent | 6b3ee8f7a9831e2229d1ee7a05fc4a3a7be8fd56 (diff) | |
download | gnuradio-640f3127479990181f7ec7381c6d67a5d1d689ac.tar.gz gnuradio-640f3127479990181f7ec7381c6d67a5d1d689ac.tar.bz2 gnuradio-640f3127479990181f7ec7381c6d67a5d1d689ac.zip |
more cleanup of comments and adding left our functions to swig. Not yet complete
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9707 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gnuradio-core/src/lib')
-rw-r--r-- | gnuradio-core/src/lib/general/gr_firdes.h | 78 | ||||
-rw-r--r-- | gnuradio-core/src/lib/general/gr_firdes.i | 1 |
2 files changed, 73 insertions, 6 deletions
diff --git a/gnuradio-core/src/lib/general/gr_firdes.h b/gnuradio-core/src/lib/general/gr_firdes.h index 7b30084d9..11752ddae 100644 --- a/gnuradio-core/src/lib/general/gr_firdes.h +++ b/gnuradio-core/src/lib/general/gr_firdes.h @@ -88,7 +88,7 @@ class gr_firdes { double sampling_freq, double cutoff_freq, // Hz beginning transition band double transition_width, // Hz width of transition band - double attenuation_dB, // attenuation dB + double attenuation_dB, // out of band attenuation dB win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser @@ -106,6 +106,7 @@ class gr_firdes { * maximum attenuation and passband ripple. * \p beta: parameter for Kaiser window */ + static std::vector<float> high_pass (double gain, double sampling_freq, @@ -114,12 +115,28 @@ class gr_firdes { win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser + /*! + * \brief use "window method" to design a high-pass FIR filter + * + * \p gain: overall gain of filter (typically 1.0) + * \p sampling_freq: sampling freq (Hz) + * \p cutoff_freq: center of transition band (Hz) + * \p transition_width: width of transition band (Hz). + * \p attenuation_dB out of band attenuation + * The normalized width of the transition + * band is what sets the number of taps + * required. Narrow --> more taps + * \p window_type: What kind of window to use. Determines + * maximum attenuation and passband ripple. + * \p beta: parameter for Kaiser window + */ + static std::vector<float> high_pass_2 (double gain, double sampling_freq, double cutoff_freq, // Hz center of transition band double transition_width, // Hz width of transition band - double attenuation_dB, // attenuation dB + double attenuation_dB, // out of band attenuation dB win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser @@ -147,13 +164,29 @@ class gr_firdes { win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser + /*! + * \brief use "window method" to design a band-pass FIR filter + * + * \p gain: overall gain of filter (typically 1.0) + * \p sampling_freq: sampling freq (Hz) + * \p low_cutoff_freq: center of transition band (Hz) + * \p high_cutoff_freq: center of transition band (Hz) + * \p transition_width: width of transition band (Hz). + * \p attenuation_dB out of band attenuation + * The normalized width of the transition + * band is what sets the number of taps + * required. Narrow --> more taps + * \p window_type: What kind of window to use. Determines + * maximum attenuation and passband ripple. + * \p beta: parameter for Kaiser window + */ static std::vector<float> band_pass_2 (double gain, double sampling_freq, double low_cutoff_freq, // Hz beginning transition band double high_cutoff_freq, // Hz beginning transition band double transition_width, // Hz width of transition band - double attenuation_dB, // attenuation dB + double attenuation_dB, // out of band attenuation dB win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser @@ -182,17 +215,33 @@ class gr_firdes { win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser + /*! + * \brief use "window method" to design a complex band-pass FIR filter + * + * \p gain: overall gain of filter (typically 1.0) + * \p sampling_freq: sampling freq (Hz) + * \p low_cutoff_freq: center of transition band (Hz) + * \p high_cutoff_freq: center of transition band (Hz) + * \p transition_width: width of transition band (Hz). + * \p attenuation_dB out of band attenuation + * The normalized width of the transition + * band is what sets the number of taps + * required. Narrow --> more taps + * \p window_type: What kind of window to use. Determines + * maximum attenuation and passband ripple. + * \p beta: parameter for Kaiser window + */ + static std::vector<gr_complex> complex_band_pass_2 (double gain, double sampling_freq, double low_cutoff_freq, // Hz beginning transition band double high_cutoff_freq, // Hz beginning transition band double transition_width, // Hz width of transition band - double attenuation_dB, // attenuation dB + double attenuation_dB, // out of band attenuation dB win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser - /*! * \brief use "window method" to design a band-reject FIR filter * @@ -218,13 +267,30 @@ class gr_firdes { win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser + /*! + * \brief use "window method" to design a band-reject FIR filter + * + * \p gain: overall gain of filter (typically 1.0) + * \p sampling_freq: sampling freq (Hz) + * \p low_cutoff_freq: center of transition band (Hz) + * \p high_cutoff_freq: center of transition band (Hz) + * \p transition_width: width of transition band (Hz). + * \p attenuation_dB out of band attenuation + * The normalized width of the transition + * band is what sets the number of taps + * required. Narrow --> more taps + * \p window_type: What kind of window to use. Determines + * maximum attenuation and passband ripple. + * \p beta: parameter for Kaiser window + */ + static std::vector<float> band_reject_2 (double gain, double sampling_freq, double low_cutoff_freq, // Hz beginning transition band double high_cutoff_freq, // Hz beginning transition band double transition_width, // Hz width of transition band - double attenuation_dB, // attenuation dB + double attenuation_dB, // out of band attenuation dB win_type window = WIN_HAMMING, double beta = 6.76); // used only with Kaiser diff --git a/gnuradio-core/src/lib/general/gr_firdes.i b/gnuradio-core/src/lib/general/gr_firdes.i index 4ac9855d2..73becadba 100644 --- a/gnuradio-core/src/lib/general/gr_firdes.i +++ b/gnuradio-core/src/lib/general/gr_firdes.i @@ -49,6 +49,7 @@ class gr_firdes { * \p sampling_freq: sampling freq (Hz) * \p cutoff_freq: center of transition band (Hz) * \p transition_width: width of transition band (Hz). + * \p attenuation_dB out of band attenuation * The normalized width of the transition * band is what sets the number of taps * required. Narrow --> more taps |