* EPIRB RX: widen AFC capture range to +/-5 kHz
The AFC estimate was only applied after carrier lock, so carrier
acquisition ran on raw phase deltas and could only tolerate offsets of
a few hundred Hz before the 0.6/0.7/1.6 rad detection thresholds (on
the 12-sample accumulator) broke down.
Track the carrier offset continuously in the IDLE state with a
first-order loop (AFC_TRACK_ALPHA), so the de-biased accumulator
self-centers for any offset within the discriminator Nyquist (~24 kHz)
*before* the thresholds run. ALPHA = 0.005 pulls a +/-5 kHz offset
under the 0.6 rad lock threshold in ~11 ms, well inside the 160 ms
preamble / 80 ms stability window. The IDLE rise-detect threshold is
also made symmetric (fabsf) now that the bias is removed.
Also add the missing <cstdint> include to test_convert.cpp so the
application_test suite compiles under the current toolchain.
Verified: baseband_epirb_rx.elf builds (flash 53%, RAM 12%) and
baseband_test passes.
* First step to EPIRB rx app fix
* Added spike filtering on carrier detection for more robustness.
* Created dedicated packet builder
* First step to fixing UI.
* First step to epirb-rx ui rework.
* Made static methods static members
* Code optim
* Code cleanup + first step to new UI
* Fixed display
* Added BeaconList widget + BeaconDB
* Epirb TX app memory optim
* Fixed OOM when opening Map Display or Locator editor on EPIRB TX app
* First step to tabs + code cleanup to free some space...
* Added spectrum analyzer + fixed display
* Fixed display refresh issue after leaving spectrum.
* More code optim + first step to detail view.
* Fixed float coord display.
* Fixed protocol names
* Fixed location display
* Externalized country base to sd card + more code optim
* Fixed country display
* Fixed path
* Added protocol description and resource manager
* Added main/aux loc device
* Removed specan to save space
* First step to adding QR code
* Used a custom TextArea component instead of Console
* Fixed QR code display for map URL
* Added beacon selection management + fixes
* First step to map/data qr.
* QR tab : added data + detail/map toggle
* Removed sqhelch to save space
* Removed audio to save space
* Removed freq label to save space
* Removed packet timestamp to save space
* Moved frequency values to resource file
* Fixed detection parameters to suite real beacons (slower phase shift time).
* Fixed countdown field size
* Fixed frequency list.
* Fixed detail view on select.
* First step to fix settings.
* Fixed squelch for a 0-99 range.
* Added bch code correction (single bit error).
* More code optim, disable country cache, removed inline from location to reduce code size.
* Removed inline, code formatting.
* Added bch code correction display.
* Fixed focus bug, fixed packet size check. Added BCH1/BCH2 correction test cases in BEACONS.TXT file for EPIRB TX application.
* Fixed merge
* Added countdown setting.
* Added selection display to beacon list
* Restored squelch control. Added countdown reset.
* Code optim on formatSummary
* More code optim
* Made ResourceManager methods static
* Externalized beacon strings to res file
*Removed frame parameter from methods
* Added test beacons for emergency. Removed old res file.
* Fixed resource manager
* Fixed resources. Added emergency display.
* BCH + res fixes
* Fixed beacons
* Fixed app color. Fixed HexId and Serial calculation.
* Fixed frequency list. Comments.
* Code cleanup and comments
* Added slideshow mode to EPIRB TX application. Code comments / cleanup.
* Fixed frame end after wrong code cleanup
* More code optim and comments. Removed touch from beacon list.
* Added beacon selection with encoder on detail view.
* Added beacon paging in header. Fixed timeout display
* Fixed build for PRALINE
* Fixed formatting
* Potential fix for pull request finding
* stop on carriage return
* empty string if unknown
* zeroing data buffer before use
* fix typo
* add include
* fix case if pair == 0
* fix scpectrum_on to spectrum_on
* fix typos
* replaced 3 inlined offset blocks with apply_offset calls
* set_beacon consolidation
* Implementation of EPIRB receiver
* Baseband processing of EPIRB signal
* UI to ddecode and display EPIRB message with display on a map
* External application
* External proc element
* Delete CLAUDE.md
Arne Luehrs
Frederic BORRY
Totoo
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