def testfrombits_bits(self, dt):
N = 2**12
M = 16
b = signals.make_prbs_extXOR(15, N)
s = signals.SignalQAMGrayCoded.from_bit_array(b, M, dtype=dt)
assert np.dtype(dt) is s.dtype
assert np.dtype(dt) is s.symbols.dtype
assert np.dtype(dt) is s.coded_symbols.dtype
def testbits2(self, M, prbsseed):
N = 1000
s = signals.SignalQAMGrayCoded(M,
N,
nmodes=1,
seed=[prbsseed],
bitclass=signals.PRBSBits)
bitsq = signals.make_prbs_extXOR(s.bits._order[0], N * np.log2(M),
prbsseed)
npt.assert_array_almost_equal(s.demodulate(s)[0], bitsq)
def testfrombits_bits(self, N, M):
b = signals.make_prbs_extXOR(15, N)
s = signals.SignalQAMGrayCoded.from_bit_array(b, M)
nbit = int(np.log2(M))
nbitlen = N // nbit
npt.assert_almost_equal(s.demodulate(s)[0], b[:nbitlen * nbit])
def testfrombits_len(self, N, M):
b = signals.make_prbs_extXOR(15, N)
s = signals.SignalQAMGrayCoded.from_bit_array(b, M)
nbit = int(np.log2(M))
nbitlen = N // nbit
assert s.shape[1] == nbitlen
