refactor sigproc

test_sigproc.py

@@ -0,0 +1,10 @@
+import sigproc
+import itertools
+
+def test_qam():
+    q = sigproc.QAM(bits_per_symbol=8, radii=[0.25, 0.5, 0.75, 1.0])
+    bits = [(1,1,0,1,0,0,1,0), (0,1,0,0,0,1,1,1)]
+    stream = itertools.chain(*bits)
+    S = q.encode(list(stream))
+    decoded = list(q.decode(list(S)))
+    assert decoded == bits