def test_001_correlate(self):
degree = 10
length = 2**degree-1
src = digital.glfsr_source_f(degree)
head = gr.head(gr.sizeof_float, length*length)
f2c = gr.float_to_complex()
corr = digital.pn_correlator_cc(degree)
dst = gr.vector_sink_c()
self.tb.connect(src, head, f2c, corr, dst)
self.tb.run()
data = dst.data()
self.assertEqual(data[-1], (1.0+0j))
def test_001_correlate(self):
degree = 10
length = 2**degree - 1
src = digital.glfsr_source_f(degree)
head = gr.head(gr.sizeof_float, length * length)
f2c = gr.float_to_complex()
corr = digital.pn_correlator_cc(degree)
dst = gr.vector_sink_c()
self.tb.connect(src, head, f2c, corr, dst)
self.tb.run()
data = dst.data()
self.assertEqual(data[-1], (1.0 + 0j))
def test_005_correlation_f(self):
for degree in range(1,11): # Higher degrees take too long to correlate
src = digital.glfsr_source_f(degree, False)
dst = blocks.vector_sink_f()
del self.tb # Discard existing top block
self.tb = gr.top_block()
self.tb.connect(src, dst)
self.tb.run()
actual_result = dst.data()
R = auto_correlate(actual_result)
self.assertEqual(R[0], float(len(R))) # Auto-correlation peak at origin
for i in range(len(R)-1):
self.assertEqual(R[i+1], -1.0) # Auto-correlation minimum everywhere else
def test_005_correlation_f(self):
for degree in range(1,11): # Higher degrees take too long to correlate
src = digital.glfsr_source_f(degree, False)
dst = gr.vector_sink_f()
del self.tb # Discard existing top block
self.tb = gr.top_block()
self.tb.connect(src, dst)
self.tb.run()
actual_result = dst.data()
R = auto_correlate(actual_result)
self.assertEqual(R[0], float(len(R))) # Auto-correlation peak at origin
for i in range(len(R)-1):
self.assertEqual(R[i+1], -1.0) # Auto-correlation minimum everywhere else
def test_004_degree_f(self):
self.assertRaises(RuntimeError,
lambda: digital.glfsr_source_f(0))
self.assertRaises(RuntimeError,
lambda: digital.glfsr_source_f(33))
def test_003_make_f(self):
src = digital.glfsr_source_f(16)
self.assertEquals(src.mask(), 0x8016)
self.assertEquals(src.period(), 2**16-1)
def test_004_degree_f(self):
self.assertRaises(RuntimeError, lambda: digital.glfsr_source_f(0))
self.assertRaises(RuntimeError, lambda: digital.glfsr_source_f(33))
def test_003_make_f(self):
src = digital.glfsr_source_f(16)
self.assertEquals(src.mask(), 0x8016)
self.assertEquals(src.period(), 2**16 - 1)