def test_00(self):
expected_result = (
0x00, 0x11, 0x22, 0x33,
0x44, 0x55, 0x66, 0x77,
0x88, 0x99, 0xaa, 0xbb,
0xcc, 0xdd, 0xee, 0xff)
# Filter taps to expand the data to oversample by 8
# Just using a RRC for some basic filter shape
taps = filter.firdes.root_raised_cosine(8, 8, 1.0, 0.5, 21)
src = blocks.vector_source_b(expected_result)
frame = digital.simple_framer(4)
unpack = blocks.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST)
expand = filter.interp_fir_filter_fff(8, taps)
b2f = blocks.char_to_float()
mult2 = blocks.multiply_const_ff(2)
sub1 = blocks.add_const_ff(-1)
op = digital.simple_correlator(4)
dst = blocks.vector_sink_b()
self.tb.connect(src, frame, unpack, b2f, mult2, sub1, expand)
self.tb.connect(expand, op, dst)
self.tb.run()
result_data = dst.data()
self.assertEqual(expected_result, result_data)
def test_char_to_float_scale(self):
src_data = (1, 2, 3, 4, 5)
expected_data = (0.5, 1.0, 1.5, 2.0, 2.5)
src = blocks.vector_source_b(src_data)
op = blocks.char_to_float(scale=2.0)
dst = blocks.vector_sink_f()
self.tb.connect(src, op, dst)
self.tb.run()
self.assertFloatTuplesAlmostEqual(expected_data, dst.data())
def test_char_to_float_identity(self):
src_data = (1, 2, 3, 4, 5)
expected_data = (1.0, 2.0, 3.0, 4.0, 5.0)
src = blocks.vector_source_b(src_data)
op = blocks.char_to_float()
dst = blocks.vector_sink_f()
self.tb.connect(src, op, dst)
self.tb.run()
self.assertFloatTuplesAlmostEqual(expected_data, dst.data())
def test_char_to_float_scale(self):
src_data = (1, 2, 3, 4, 5)
expected_data = (0.5, 1.0, 1.5, 2.0, 2.5)
src = blocks.vector_source_b(src_data)
op = blocks.char_to_float(scale=2.0)
dst = blocks.vector_sink_f()
self.tb.connect(src, op, dst)
self.tb.run()
self.assertFloatTuplesAlmostEqual(expected_data, dst.data())
def test_char_to_float_identity(self):
src_data = (1, 2, 3, 4, 5)
expected_data = (1.0, 2.0, 3.0, 4.0, 5.0)
src = blocks.vector_source_b(src_data)
op = blocks.char_to_float()
dst = blocks.vector_sink_f()
self.tb.connect(src, op, dst)
self.tb.run()
self.assertFloatTuplesAlmostEqual(expected_data, dst.data())
def xtest_ccsds_27 (self):
src_data = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
expected = (0, 0, 0, 0, 1, 2, 3, 4, 5, 6)
src = blocks.vector_source_b(src_data)
enc = fec.encode_ccsds_27_bb()
b2f = blocks.char_to_float()
add = blocks.add_const_ff(-0.5)
mul = blocks.multiply_const_ff(2.0)
dec = fec.decode_ccsds_27_fb()
dst = blocks.vector_sink_b()
self.tb.connect(src, enc, b2f, add, mul, dec, dst)
self.tb.run()
dst_data = dst.data()
self.assertEqual(expected, dst_data)
def xtest_ccsds_27(self):
src_data = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
expected = (0, 0, 0, 0, 1, 2, 3, 4, 5, 6)
src = blocks.vector_source_b(src_data)
enc = fec.encode_ccsds_27_bb()
b2f = blocks.char_to_float()
add = blocks.add_const_ff(-0.5)
mul = blocks.multiply_const_ff(2.0)
dec = fec.decode_ccsds_27_fb()
dst = blocks.vector_sink_b()
self.tb.connect(src, enc, b2f, add, mul, dec, dst)
self.tb.run()
dst_data = dst.data()
self.assertEqual(expected, dst_data)
def test_00(self):
expected_result = (0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff)
# Filter taps to expand the data to oversample by 8
# Just using a RRC for some basic filter shape
taps = filter.firdes.root_raised_cosine(8, 8, 1.0, 0.5, 21)
src = blocks.vector_source_b(expected_result)
frame = digital.simple_framer(4)
unpack = blocks.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST)
expand = filter.interp_fir_filter_fff(8, taps)
b2f = blocks.char_to_float()
mult2 = blocks.multiply_const_ff(2)
sub1 = blocks.add_const_ff(-1)
op = digital.simple_correlator(4)
dst = blocks.vector_sink_b()
self.tb.connect(src, frame, unpack, b2f, mult2, sub1, expand)
self.tb.connect(expand, op, dst)
self.tb.run()
result_data = dst.data()
self.assertEqual(expected_result, result_data)