Merge branch 'sync' of git@gnuradio.org:trondeau into master

This merge adds polyphase clock recovery, implements new PAM demodulators
that use it, and also moves GRC examples to gnuradio-examples component.

See merge commit diff for updated files post merge.

* 'sync' of git@gnuradio.org:trondeau: (54 commits)
  Reverting dqpsk to be mpsk_receiver based and not change its behavior.
  Fixing initialization of timing gains. Alpha should be < 1, and beta should be << 1.
  This splits the rate into a fractional an integer value, which allows the loop to adjust the fractional rate while the integer rate keeps the increments moving properly. Allows the max rate deviation to be independent of the integer rate. Scaling of the differential taps also allows alpha and beta to operate independent of the rate when fractional samples per symbol are used. Slightly more tolerant to large signal values, but they still should be close to +/-1.
  Fixing compiler warnings.
  Adding dqpsk2 block to makefile for installation.
  Adding DQPSK version that uses the PFB timing sync block (dqpsk2).
  Minor fixes for logging.
  Fixing import of UI file.
  Temporary working dbpsk2 example until we match everything.
  Working DBPSK implementation with new PFB clock recovery block. The feedforward AGC wasn't playing nicely, the frequency aquistion range was increased to swing half the sample rate in either direction, and the number of filter phases to use was increased to 32.
  A bit of code cleanup.
  Starting to rework QT app to control new PFB clock recovery alg.
  Making old dbpsk work again to compare against new version.
  Adding new DBPSK block with new PFB clock recovery alg.
  Revert "More additions to PAM timing simulation."
  More additions to PAM timing simulation.
  Using 2-PAM by default.
  Cleaning up GRC PAM timing example and adding ability to do M-ary PAM.
  Cleaning up constructor.
  Moving filter number decision to start work function.
  ...

1 files changed, 637 insertions, 0 deletions

diff --git a/gnuradio-examples/python/digital/qt_digital_window2.ui b/gnuradio-examples/python/digital/qt_digital_window2.ui
new file mode 100644
index 000000000..dc20ed798
--- /dev/null
+++ b/gnuradio-examples/python/digital/qt_digital_window2.ui
@@ -0,0 +1,637 @@
+<ui version="4.0" >
+ <class>DigitalWindow</class>
+ <widget class="QMainWindow" name="DigitalWindow" >
+  <property name="geometry" >
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1019</width>
+    <height>754</height>
+   </rect>
+  </property>
+  <property name="windowTitle" >
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget" >
+   <layout class="QGridLayout" name="gridLayout" >
+    <item row="2" column="0" >
+     <layout class="QVBoxLayout" name="verticalLayout_2" >
+      <item>
+       <widget class="QGroupBox" name="sysBox" >
+        <property name="sizePolicy" >
+         <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="minimumSize" >
+         <size>
+          <width>240</width>
+          <height>60</height>
+         </size>
+        </property>
+        <property name="maximumSize" >
+         <size>
+          <width>240</width>
+          <height>16777215</height>
+         </size>
+        </property>
+        <property name="title" >
+         <string>System Parameters</string>
+        </property>
+        <widget class="QWidget" name="formLayoutWidget" >
+         <property name="geometry" >
+          <rect>
+           <x>10</x>
+           <y>20</y>
+           <width>211</width>
+           <height>31</height>
+          </rect>
+         </property>
+         <layout class="QFormLayout" name="formLayout" >
+          <property name="sizeConstraint" >
+           <enum>QLayout::SetFixedSize</enum>
+          </property>
+          <property name="verticalSpacing" >
+           <number>20</number>
+          </property>
+          <item row="0" column="1" >
+           <widget class="QLineEdit" name="sampleRateEdit" >
+            <property name="sizePolicy" >
+             <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="minimumSize" >
+             <size>
+              <width>60</width>
+              <height>26</height>
+             </size>
+            </property>
+            <property name="maximumSize" >
+             <size>
+              <width>80</width>
+              <height>26</height>
+             </size>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="0" >
+           <widget class="QLabel" name="sampleRateLabel" >
+            <property name="sizePolicy" >
+             <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="minimumSize" >
+             <size>
+              <width>0</width>
+              <height>20</height>
+             </size>
+            </property>
+            <property name="maximumSize" >
+             <size>
+              <width>16777215</width>
+              <height>20</height>
+             </size>
+            </property>
+            <property name="text" >
+             <string>Sample Rate (sps)</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </widget>
+      </item>
+      <item>
+       <spacer name="verticalSpacer_2" >
+        <property name="orientation" >
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeType" >
+         <enum>QSizePolicy::Fixed</enum>
+        </property>
+        <property name="sizeHint" stdset="0" >
+         <size>
+          <width>20</width>
+          <height>60</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </item>
+    <item row="0" column="0" colspan="6" >
+     <layout class="QVBoxLayout" name="verticalLayout_5" >
+      <item>
+       <widget class="QFrame" name="sinkFrame" >
+        <property name="sizePolicy" >
+         <sizepolicy vsizetype="Expanding" hsizetype="Expanding" >
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="minimumSize" >
+         <size>
+          <width>500</width>
+          <height>550</height>
+         </size>
+        </property>
+        <property name="frameShape" >
+         <enum>QFrame::StyledPanel</enum>
+        </property>
+        <property name="frameShadow" >
+         <enum>QFrame::Raised</enum>
+        </property>
+        <layout class="QGridLayout" name="gridLayout_2" >
+         <item row="1" column="0" >
+          <layout class="QHBoxLayout" name="sinkLayout" />
+         </item>
+        </layout>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item row="2" column="1" >
+     <widget class="QGroupBox" name="channelModeBox" >
+      <property name="sizePolicy" >
+       <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
+      <property name="minimumSize" >
+       <size>
+        <width>245</width>
+        <height>130</height>
+       </size>
+      </property>
+      <property name="maximumSize" >
+       <size>
+        <width>245</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="title" >
+       <string>Channel Model Parameters</string>
+      </property>
+      <widget class="QWidget" name="formLayoutWidget_2" >
+       <property name="geometry" >
+        <rect>
+         <x>10</x>
+         <y>20</y>
+         <width>221</width>
+         <height>98</height>
+        </rect>
+       </property>
+       <layout class="QFormLayout" name="formLayout_2" >
+        <property name="sizeConstraint" >
+         <enum>QLayout::SetFixedSize</enum>
+        </property>
+        <property name="fieldGrowthPolicy" >
+         <enum>QFormLayout::AllNonFixedFieldsGrow</enum>
+        </property>
+        <item row="0" column="0" >
+         <widget class="QLabel" name="snrLabel" >
+          <property name="text" >
+           <string>SNR (dB)</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1" >
+         <widget class="QLineEdit" name="snrEdit" >
+          <property name="minimumSize" >
+           <size>
+            <width>60</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="0" >
+         <widget class="QLabel" name="freqLabel" >
+          <property name="text" >
+           <string>Frequency Offset (Hz)</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1" >
+         <widget class="QLineEdit" name="freqEdit" >
+          <property name="minimumSize" >
+           <size>
+            <width>60</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="0" >
+         <widget class="QLabel" name="timeLabel" >
+          <property name="text" >
+           <string>Timing Offset</string>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="1" >
+         <widget class="QLineEdit" name="timeEdit" >
+          <property name="minimumSize" >
+           <size>
+            <width>60</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <zorder>formLayoutWidget_2</zorder>
+      <zorder>rxBox</zorder>
+     </widget>
+    </item>
+    <item row="2" column="3" >
+     <widget class="QGroupBox" name="rxBox_2" >
+      <property name="sizePolicy" >
+       <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
+      <property name="minimumSize" >
+       <size>
+        <width>220</width>
+        <height>125</height>
+       </size>
+      </property>
+      <property name="maximumSize" >
+       <size>
+        <width>265</width>
+        <height>125</height>
+       </size>
+      </property>
+      <property name="title" >
+       <string>Received Packet Info</string>
+      </property>
+      <widget class="QWidget" name="formLayoutWidget_4" >
+       <property name="geometry" >
+        <rect>
+         <x>10</x>
+         <y>20</y>
+         <width>248</width>
+         <height>188</height>
+        </rect>
+       </property>
+       <layout class="QFormLayout" name="formLayout_4" >
+        <property name="sizeConstraint" >
+         <enum>QLayout::SetFixedSize</enum>
+        </property>
+        <property name="fieldGrowthPolicy" >
+         <enum>QFormLayout::AllNonFixedFieldsGrow</enum>
+        </property>
+        <item row="0" column="0" >
+         <widget class="QLabel" name="pktsRcvdLabel" >
+          <property name="text" >
+           <string>Packets Rcvd.</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1" >
+         <widget class="QLineEdit" name="pktsRcvdEdit" >
+          <property name="minimumSize" >
+           <size>
+            <width>60</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="0" >
+         <widget class="QLabel" name="pktsCorrectLabel" >
+          <property name="text" >
+           <string>Packets Correct</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1" >
+         <widget class="QLineEdit" name="pktsCorrectEdit" >
+          <property name="minimumSize" >
+           <size>
+            <width>60</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="0" >
+         <widget class="QLabel" name="perLabel" >
+          <property name="text" >
+           <string>PER</string>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="1" >
+         <widget class="QLineEdit" name="perEdit" >
+          <property name="minimumSize" >
+           <size>
+            <width>60</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+       </layout>
+       <zorder>pktsRcvdLabel</zorder>
+       <zorder>pktsCorrectLabel</zorder>
+       <zorder>perLabel</zorder>
+       <zorder>pktsRcvdEdit</zorder>
+       <zorder>pktsCorrectEdit</zorder>
+       <zorder>perEdit</zorder>
+       <zorder>rxBox</zorder>
+      </widget>
+     </widget>
+    </item>
+    <item row="2" column="4" >
+     <spacer name="horizontalSpacer" >
+      <property name="orientation" >
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="sizeHint" stdset="0" >
+       <size>
+        <width>20</width>
+        <height>20</height>
+       </size>
+      </property>
+     </spacer>
+    </item>
+    <item row="2" column="5" >
+     <layout class="QVBoxLayout" name="verticalLayout" >
+      <item>
+       <widget class="QPushButton" name="pauseButton" >
+        <property name="minimumSize" >
+         <size>
+          <width>80</width>
+          <height>0</height>
+         </size>
+        </property>
+        <property name="maximumSize" >
+         <size>
+          <width>80</width>
+          <height>16777215</height>
+         </size>
+        </property>
+        <property name="text" >
+         <string>Pause</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="verticalSpacer" >
+        <property name="orientation" >
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeType" >
+         <enum>QSizePolicy::Fixed</enum>
+        </property>
+        <property name="sizeHint" stdset="0" >
+         <size>
+          <width>20</width>
+          <height>60</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="closeButton" >
+        <property name="minimumSize" >
+         <size>
+          <width>80</width>
+          <height>0</height>
+         </size>
+        </property>
+        <property name="maximumSize" >
+         <size>
+          <width>80</width>
+          <height>16777215</height>
+         </size>
+        </property>
+        <property name="text" >
+         <string>Close</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item row="2" column="2" >
+     <widget class="QGroupBox" name="rxBox" >
+      <property name="sizePolicy" >
+       <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
+      <property name="minimumSize" >
+       <size>
+        <width>180</width>
+        <height>120</height>
+       </size>
+      </property>
+      <property name="maximumSize" >
+       <size>
+        <width>180</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="title" >
+       <string>Receiver Parameters</string>
+      </property>
+      <widget class="QWidget" name="formLayoutWidget_3" >
+       <property name="geometry" >
+        <rect>
+         <x>10</x>
+         <y>10</y>
+         <width>161</width>
+         <height>101</height>
+        </rect>
+       </property>
+       <layout class="QFormLayout" name="formLayout_3" >
+        <property name="sizeConstraint" >
+         <enum>QLayout::SetFixedSize</enum>
+        </property>
+        <item row="0" column="0" >
+         <widget class="QLabel" name="alphaTimeLabel" >
+          <property name="text" >
+           <string>Alpha: time</string>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="0" >
+         <widget class="QLabel" name="alphaFreqLabel" >
+          <property name="text" >
+           <string>Alpha: freq</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1" >
+         <widget class="QLineEdit" name="alphaTimeEdit" >
+          <property name="minimumSize" >
+           <size>
+            <width>60</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="1" >
+         <widget class="QLineEdit" name="alphaFreqEdit" >
+          <property name="minimumSize" >
+           <size>
+            <width>60</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1" >
+         <widget class="QLineEdit" name="betaTimeEdit" >
+          <property name="maximumSize" >
+           <size>
+            <width>80</width>
+            <height>16777215</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="0" >
+         <widget class="QLabel" name="betaTimeLabel" >
+          <property name="text" >
+           <string>Beta: time</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </widget>
+    </item>
+   </layout>
+   <zorder>channelModeBox</zorder>
+   <zorder></zorder>
+   <zorder>rxBox_2</zorder>
+   <zorder>horizontalSpacer</zorder>
+   <zorder></zorder>
+   <zorder>rxBox</zorder>
+  </widget>
+  <widget class="QMenuBar" name="menubar" >
+   <property name="geometry" >
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>1019</width>
+     <height>24</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuFile" >
+    <property name="title" >
+     <string>&amp;File</string>
+    </property>
+    <addaction name="actionExit" />
+   </widget>
+   <addaction name="menuFile" />
+  </widget>
+  <widget class="QStatusBar" name="statusbar" />
+  <action name="actionExit" >
+   <property name="text" >
+    <string>E&amp;xit</string>
+   </property>
+  </action>
+ </widget>
+ <tabstops>
+  <tabstop>snrEdit</tabstop>
+  <tabstop>freqEdit</tabstop>
+  <tabstop>timeEdit</tabstop>
+ </tabstops>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>closeButton</sender>
+   <signal>clicked()</signal>
+   <receiver>DigitalWindow</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel" >
+     <x>322</x>
+     <y>623</y>
+    </hint>
+    <hint type="destinationlabel" >
+     <x>66</x>
+     <y>561</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>actionExit</sender>
+   <signal>triggered()</signal>
+   <receiver>DigitalWindow</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel" >
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel" >
+     <x>617</x>
+     <y>327</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>