1 files changed, 76 insertions, 0 deletions
diff --git a/gr-channels/python/channels/phase_bal.py b/gr-channels/python/channels/phase_bal.py
new file mode 100644
index 0000000000..b760e6f439
--- /dev/null
+++ b/gr-channels/python/channels/phase_bal.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: IQ Phase Balancer
+# Author: matt@ettus.com
+# Generated: Thu Aug  1 11:49:41 2013
+##################################################
+
+from gnuradio import blocks
+from gnuradio import filter
+from gnuradio import gr
+from gnuradio.filter import firdes
+
+class phase_bal(gr.hier_block2):
+
+    def __init__(self, alpha=0):
+        gr.hier_block2.__init__(
+            self, "IQ Phase Balancer",
+            gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
+            gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
+        )
+
+        ##################################################
+        # Parameters
+        ##################################################
+        self.alpha = alpha
+
+        ##################################################
+        # Blocks
+        ##################################################
+        self.filter_single_pole_iir_filter_xx_0 = filter.single_pole_iir_filter_ff(alpha, 1)
+        self.blocks_sub_xx_1 = blocks.sub_ff(1)
+        self.blocks_sub_xx_0 = blocks.sub_ff(1)
+        self.blocks_multiply_xx_2 = blocks.multiply_vff(1)
+        self.blocks_multiply_xx_1 = blocks.multiply_vff(1)
+        self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
+        self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((2, ))
+        self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
+        self.blocks_divide_xx_0 = blocks.divide_ff(1)
+        self.blocks_complex_to_mag_squared_0 = blocks.complex_to_mag_squared(1)
+        self.blocks_complex_to_float_0 = blocks.complex_to_float(1)
+
+        ##################################################
+        # Connections
+        ##################################################
+        self.connect((self.blocks_complex_to_float_0, 0), (self.blocks_multiply_xx_0, 0))
+        self.connect((self.blocks_complex_to_float_0, 1), (self.blocks_multiply_xx_0, 1))
+        self.connect((self.blocks_multiply_xx_0, 0), (self.blocks_divide_xx_0, 0))
+        self.connect((self.blocks_sub_xx_0, 0), (self.blocks_float_to_complex_0, 1))
+        self.connect((self.blocks_multiply_xx_1, 0), (self.blocks_sub_xx_0, 1))
+        self.connect((self.filter_single_pole_iir_filter_xx_0, 0), (self.blocks_multiply_xx_1, 1))
+        self.connect((self.blocks_complex_to_float_0, 0), (self.blocks_multiply_xx_1, 0))
+        self.connect((self.blocks_multiply_xx_2, 0), (self.blocks_sub_xx_1, 1))
+        self.connect((self.blocks_complex_to_float_0, 1), (self.blocks_sub_xx_0, 0))
+        self.connect((self.blocks_sub_xx_1, 0), (self.blocks_float_to_complex_0, 0))
+        self.connect((self.blocks_complex_to_mag_squared_0, 0), (self.blocks_divide_xx_0, 1))
+        self.connect((self.blocks_complex_to_float_0, 0), (self.blocks_sub_xx_1, 0))
+        self.connect((self.blocks_divide_xx_0, 0), (self.blocks_multiply_const_vxx_0, 0))
+        self.connect((self.blocks_multiply_const_vxx_0, 0), (self.filter_single_pole_iir_filter_xx_0, 0))
+        self.connect((self, 0), (self.blocks_complex_to_float_0, 0))
+        self.connect((self, 0), (self.blocks_complex_to_mag_squared_0, 0))
+        self.connect((self.blocks_float_to_complex_0, 0), (self, 0))
+        self.connect((self.filter_single_pole_iir_filter_xx_0, 0), (self.blocks_multiply_xx_2, 0))
+        self.connect((self.blocks_complex_to_float_0, 1), (self.blocks_multiply_xx_2, 1))
+
+
+# QT sink close method reimplementation
+
+    def get_alpha(self):
+        return self.alpha
+
+    def set_alpha(self, alpha):
+        self.alpha = alpha
+        self.filter_single_pole_iir_filter_xx_0.set_taps(self.alpha)
+
+