diff options
Diffstat (limited to 'gr-trellis/src/examples/python/test_turbo_equalization.py')
-rwxr-xr-x | gr-trellis/src/examples/python/test_turbo_equalization.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gr-trellis/src/examples/python/test_turbo_equalization.py b/gr-trellis/src/examples/python/test_turbo_equalization.py index 854344c30a..baddd7cb50 100755 --- a/gr-trellis/src/examples/python/test_turbo_equalization.py +++ b/gr-trellis/src/examples/python/test_turbo_equalization.py @@ -2,12 +2,16 @@ from gnuradio import gr from gnuradio import trellis, digital -from gnuradio import analog from gnuradio import eng_notation import math import sys import fsm_utils +try: + from gnuradio import analog +except ImportError: + sys.stderr.write("Error: Program requires gr-analog.\n") + sys.exit(1) def make_rx(tb,fo,fi,dimensionality,tot_constellation,K,interleaver,IT,Es,N0,type): metrics_in = trellis.metrics_f(fi.O(),dimensionality,tot_constellation,digital.TRELLIS_EUCLIDEAN) # data preprocessing to generate metrics for innner SISO |