diff options
| author | Piotr Krysik <ptrkrysik@gmail.com> | 2016-07-20 21:39:40 +0200 |
|---|---|---|
| committer | Piotr Krysik <ptrkrysik@gmail.com> | 2016-07-20 21:39:40 +0200 |
| commit | 7973538ed2f61b09ffacd35b11e9c986a2b805b2 (patch) | |
| tree | 4c2586d2897f40f18a5e7e195640b60e3e1349f6 /python/misc_utils | |
| parent | 43af70d360db5b2cf3b82d6d4ccd78ee4d50d6b8 (diff) | |
Changing ppm parameter in clock offset corrector now takes effect on the fractional resampler
Diffstat (limited to 'python/misc_utils')
| -rw-r--r-- | python/misc_utils/clock_offset_corrector_tagged.py | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/python/misc_utils/clock_offset_corrector_tagged.py b/python/misc_utils/clock_offset_corrector_tagged.py index a3e2b0a..bf4b455 100644 --- a/python/misc_utils/clock_offset_corrector_tagged.py +++ b/python/misc_utils/clock_offset_corrector_tagged.py @@ -4,7 +4,7 @@ # Title: Clock Offset Corrector Tagged # Author: Piotr Krysik # Description: Clock offset corrector with blocks that use tags to switch offsets -# Generated: Sun Jul 17 22:03:13 2016 +# Generated: Wed Jul 20 20:07:11 2016 ################################################## from gnuradio import gr @@ -42,7 +42,7 @@ class clock_offset_corrector_tagged(grgsm.hier_block): ################################################## self.gsm_msg_to_tag_0 = grgsm.msg_to_tag() self.gsm_controlled_rotator_cc_0 = grgsm.controlled_rotator_cc(ppm/1.0e6*2*math.pi*fc/samp_rate_out) - self.gsm_controlled_fractional_resampler_cc_0 = grgsm.controlled_fractional_resampler_cc(0, samp_rate_in/samp_rate_out) + self.gsm_controlled_fractional_resampler_cc_0 = grgsm.controlled_fractional_resampler_cc(0, (1-ppm/1.0e6)*(samp_rate_in/samp_rate_out)) ################################################## # Connections @@ -73,13 +73,14 @@ class clock_offset_corrector_tagged(grgsm.hier_block): def set_ppm(self, ppm): self.ppm = ppm self.gsm_controlled_rotator_cc_0.set_phase_inc(self.ppm/1.0e6*2*math.pi*self.fc/self.samp_rate_out) + self.gsm_controlled_fractional_resampler_cc_0.set_resamp_ratio((1-self.ppm/1.0e6)*(self.samp_rate_in/self.samp_rate_out)) def get_samp_rate_in(self): return self.samp_rate_in def set_samp_rate_in(self, samp_rate_in): self.samp_rate_in = samp_rate_in - self.gsm_controlled_fractional_resampler_cc_0.set_resamp_ratio(self.samp_rate_in/self.samp_rate_out) + self.gsm_controlled_fractional_resampler_cc_0.set_resamp_ratio((1-self.ppm/1.0e6)*(self.samp_rate_in/self.samp_rate_out)) def get_gsm_symb_rate(self): return self.gsm_symb_rate @@ -93,5 +94,5 @@ class clock_offset_corrector_tagged(grgsm.hier_block): def set_samp_rate_out(self, samp_rate_out): self.samp_rate_out = samp_rate_out - self.gsm_controlled_fractional_resampler_cc_0.set_resamp_ratio(self.samp_rate_in/self.samp_rate_out) self.gsm_controlled_rotator_cc_0.set_phase_inc(self.ppm/1.0e6*2*math.pi*self.fc/self.samp_rate_out) + self.gsm_controlled_fractional_resampler_cc_0.set_resamp_ratio((1-self.ppm/1.0e6)*(self.samp_rate_in/self.samp_rate_out)) |