From a3a5354ab243a3f1ede7ad82ca9616556fb9c8ad Mon Sep 17 00:00:00 2001 From: sara Date: Mon, 8 Nov 2021 14:46:37 +0100 Subject: QAM / 4-PSK Simulation --- simulation/QPSK/qpks.py | 2 +- simulation/QPSK/qpsk.grc | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'simulation/QPSK') diff --git a/simulation/QPSK/qpks.py b/simulation/QPSK/qpks.py index 11e7004..98a982f 100755 --- a/simulation/QPSK/qpks.py +++ b/simulation/QPSK/qpks.py @@ -82,7 +82,7 @@ class qpks(gr.top_block, Qt.QWidget): self.time_offset = time_offset = 1.0 self.samp_rate = samp_rate = 32000 self.rrc_taps = rrc_taps = firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), excess_bw, 45*nfilts) - self.qpsk_const = qpsk_const = digital.constellation_rect([0.707+0.707j, -0.707+0.707j, -0.707-0.707j, 0.707-0.707j], [0, 1, 3, 2], + self.qpsk_const = qpsk_const = digital.constellation_rect([0.707+1j, -0.707+0.707j, -0.707-0.707j, 0.707-0.707j], [0, 1, 3, 2], 4, 2, 2, 1, 1).base() self.phase_bw = phase_bw = 2 * 3.141592653589793 / 100 self.noise_volt = noise_volt = 0.0001 diff --git a/simulation/QPSK/qpsk.grc b/simulation/QPSK/qpsk.grc index 3275e96..087f8e0 100644 --- a/simulation/QPSK/qpsk.grc +++ b/simulation/QPSK/qpsk.grc @@ -180,7 +180,7 @@ blocks: id: variable_constellation_rect parameters: comment: '' - const_points: '[0.707+0.707j, -0.707+0.707j, -0.707-0.707j, 0.707-0.707j]' + const_points: '[0.707+1j, -0.707+0.707j, -0.707-0.707j, 0.707-0.707j]' imag_sect: '2' precision: '8' real_sect: '2' -- cgit v1.2.1