diff options
Diffstat (limited to 'src/gr-fadingui')
| -rw-r--r-- | src/gr-fadingui/python/phasecorrection.py | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/src/gr-fadingui/python/phasecorrection.py b/src/gr-fadingui/python/phasecorrection.py index 7d79529..75ca280 100644 --- a/src/gr-fadingui/python/phasecorrection.py +++ b/src/gr-fadingui/python/phasecorrection.py @@ -1,5 +1,7 @@ #!/usr/bin/env python # -*- coding: utf-8 -*- +# +# Copyright 2021 Naoki Pross. import pmt @@ -34,6 +36,10 @@ class phasecorrection(gr.sync_block): self.last = None self.lastfreq = 0 + # debugging variables to check if an error happened in block processing + self.lastnsamples = 0 + self.lastnback = 0 + def block_phase(self, start, end): """ Compute a vector for the phase and frequency correction for the samples @@ -62,6 +68,7 @@ class phasecorrection(gr.sync_block): # debugging log.debug(f"Correction for chunk of {nsamples:2d} samples is " \ f"sphase={sphase: .4f} rad and freq={freq*1e3: .4f}e-3 rad / sample") + self.lastnsamples = nsamples # compute chunk values return sphase * np.ones(nsamples) + freq * np.arange(0, nsamples) @@ -105,6 +112,14 @@ class phasecorrection(gr.sync_block): start = self.block_phase(self.last, tags[0])[-nfront:] \ if self.last and nfront else np.zeros(nfront) + # debugging + if self.lastnback + self.nfront != self.lastnsamples: + log.warn("Something went wrong during block processing!\n" \ + f"Last block finished with nback = {self.lastnback} samples, " \ + f"current block starts with nstart = {self.nstart}, but their sum" \ + f"is not {self.latnsamples} = size of last chunk") + self.lastnback = nback + # compute correction correction = np.exp(-1j * np.concatenate([start, middle, end])) length = len(correction) @@ -119,6 +134,4 @@ class phasecorrection(gr.sync_block): for tag in tags: self.add_item_tag(0, tag.offset, pmt.intern("frame_start"), pmt.PMT_T) - # FIXME: should return `length' but then the last sample is not - # included and self.last does something weird return len(out)
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