mirrors/gnss-sdr
1
0
Fork 0
mirror of https://github.com/gnss-sdr/gnss-sdr synced 2026-10-07 08:11:51 +00:00
Code Issues Releases Wiki Activity

Document histogram-based bit synchronization in the changelog

Browse Source
This commit is contained in:
Carles Fernandez
2026-02-09 20:08:44 +01:00
parent 2799e6afde
commit a5eee2a5b6
1 changed files with 15 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/CHANGELOG.md
+15
View File
@@ -14,6 +14,21 @@ All notable changes to GNSS-SDR will be documented in this file.
## [Unreleased](https://github.com/gnss-sdr/gnss-sdr/tree/next)
### Improvements in Availability:
- Introduced a histogram-based navigation data bit synchronizer used by tracking
loops to robustly detect navigation-bit transitions in signals without
secondary code. Lock is declared when the histogram exhibits a clearly
dominant phase bin, verified using a configurable dominance ratio and
stability criterion. Once synchronized, the tracking loop can safely switch to
extended coherent integration, improving tracking sensitivity. New
configuration parameters are `Tracking_1C.bs_dominance_ratio` (ratio between
the count of the dominant histogram bin and the total number of detected
transition events, default: 0.6), `Tracking_1C.bs_stable_best_required`
(required number of consecutive evaluations with the same dominant histogram
bin, default: 3), and `Tracking_1C.bs_min_events_for_lock` (minimum number of
detected transition events before lock evaluation, default: 10).
### Improvements in Interoperability:
- Enabled multi-band processing off-loading to the FPGA when using the MAX2771