From: Tom <trondeau@vt.edu>
Date: Thu, 10 Dec 2009 05:32:49 +0000 (-0500)
Subject: Adding accessor functions to set alpha and beta gains for the FLL.
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=28a55d174516831f55f0089be9a3c9080496c4ec;p=debian%2Fgnuradio

Adding accessor functions to set alpha and beta gains for the FLL.
---

diff --git a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.cc b/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.cc
index 5ed9cf5f..156ad278 100644
--- a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.cc
+++ b/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.cc
@@ -130,7 +130,7 @@ gr_fll_band_edge_cc::work (int noutput_items,
     error = out_lower - out_upper;
 
     d_freq = d_freq + d_beta * error;
-    d_phase = d_phase + d_freq + d_alpha * error;
+    d_phase = d_phase + d_freq; // + d_alpha * error;
 
     if(d_phase > M_PI)
       d_phase -= M_TWOPI;
diff --git a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.h b/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.h
index ca268859..feb5e0a7 100644
--- a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.h
+++ b/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.h
@@ -78,7 +78,19 @@ public:
    * Resets the filter taps with the new prototype filter
    * \param taps    (vector/list of gr_complex) The band-edge filter
    */
-   void set_taps (const std::vector<gr_complex> &taps);
+  void set_taps (const std::vector<gr_complex> &taps);
+
+  /*!
+   * Set the alpha gainvalue
+   * \param alpha    (float) new gain value
+   */
+  void set_alpha(float alpha) { d_alpha = alpha; }
+
+  /*!
+   * Set the beta gain value
+   * \param beta    (float) new gain value
+   */
+  void set_beta(float beta) { d_beta = beta; }
 
   /*!
    * Print the taps to screen.
diff --git a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.i b/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.i
index 9891d140..13714951 100644
--- a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.i
+++ b/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.i
@@ -35,4 +35,6 @@ class gr_fll_band_edge_cc : public gr_sync_block
   ~gr_fll_band_edge_cc ();
 
   void set_taps (const std::vector<gr_complex> &taps);
+  void set_alpha (float alpha);
+  void set_beta (float beta);
 };
diff --git a/grc/blocks/gr_fll_band_edge_cc.xml b/grc/blocks/gr_fll_band_edge_cc.xml
index dc4a650e..61dc378a 100644
--- a/grc/blocks/gr_fll_band_edge_cc.xml
+++ b/grc/blocks/gr_fll_band_edge_cc.xml
@@ -10,6 +10,8 @@
 	<import>from gnuradio import gr</import>
 	<make>gr.fll_band_edge_cc($alpha, $beta, $taps)</make>
 	<callback>set_taps($taps)</callback>
+	<callback>set_alpha($alpha)</callback>
+	<callback>set_beta($beta)</callback>
 
 	<param>
 		<name>Type</name>