qampy.core.phaserecovery

Functions for carrier offset and phase estimation and correction functions

Functions

bps(E, Mtestangles, symbols, N[, method])	Perform a blind phase search after _[1]
bps_af(E, testangles, symbols, N, **kwargs)	Arrayfire based blind phase search.
bps_pyx(E, testangles, symbols, N, **kwargs)	Cython based blind phase search.
bps_twostage(E, Mtestangles, symbols, N[, ...])	Perform a blind phase search phase recovery using two stages after _[1]
cal_s0(E, M)	Calculate the signal power S0 according to formula given in Gao and Tepedelenlioglu in IEEE Trans in Signal Processing Vol 53, pg 865 (2005).
comp_freq_offset(sig, freq_offset[, os])	Compensate for frequency offset in signal
find_freq_offset(sig[, os, ...])	Find the frequency offset by searching in the spectrum of the signal raised to 4.
moving_average(sig[, N])	Moving average of signal
partition_16qam(E)	Partition a 16-QAM signal into the inner and outer circles.
phase_partition_16qam(E, Nblock)	16-QAM blind phase recovery using QPSK partitioning.
segment_axis(a, length[, overlap, axis, ...])	Generate a new array that chops the given array along the given axis into overlapping frames.
select_angles(angles, idx)
viterbiviterbi(E, N, M)	Viterbi-Viterbi blind phase recovery for an M-PSK signal