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Update changelog

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Carles Fernandez 2020-02-06 21:52:23 +01:00
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### Improvements in Efficiency:
- Faster implementation of the Viterbi decoder for Galileo navigation messages.
- The -O3 flag is now passed to GCC in Release and RelWithDebInfo build types (instead of -O2), thus enabling tree vectorization.
### Improvements in Flexibility:
- New Tracking parameters allow the configuration of the C/N0 and lock detector smoothers, as well as the activation of the FLL in pull-in and steady state stages.
- New PVT parameter enable_rx_clock_correction allows to enable or disable the application of the Time solution correction (clock steering) to the computation of Observables. By default is set to false (that is, disabled).
- New PVT parameter enable_rx_clock_correction allows to enable or disable the continuous application of the Time solution correction (clock steering) to the computation of Observables. By default is set to false (that is, disabled).
- New PVT parameter max_clock_offset_ms: if PVT.enable_rx_clock_correction is set to false, this parameter sets the maximum allowed local clock offset with respect to the Time solution. If the estimated offset exceeds this parameter, a clock correction is applied to the computation of Observables.
- Fixed L5 and E5a receiver chains when tracking the data component.
### Improvements in Interoperability:
- Fixed PVT solution in receivers processing L1 plus L2C and/or L5 signals.
- Added carrier phase observable initialization to match the pseudorange length.
- Added RINEX files generation for triple-band configurations (L1 + L2C + L5 and L1 + E1 + L2C + L5 + E5a).
- Fixed bugs in the decoding of BeiDou navigation messages.
- Fixed bugs in the generation of RTCM messages.
- Fixed a bug in feeding Galileo channels' observations to RTKLIB, which was causing wrong date of PVT fixes in Galileo-only receivers and not considering Galileo observations in multi-constellation receivers when using signals after the GPS rollover on April 6, 2019.
- Improved management of devices with the AD9361 RF transceiver.
- Fixed bugs in FPGA off-loading.
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- Added more check options to .clang-tidy file.
- Default Python version is now >= 3.4. Python 2.7 still can be used in systems where Python 3 is not available (e.g., CentOS 7, Debian 8, Ubuntu 10.04).
- CMake now passes the CMAKE_BUILD_TYPE (or configuration in multi-configuration generators like Xcode) to modules built along gnss-sdr (e.g, the volk_gnsssdr library and googletest). Build types available: None, Release (by default), Debug, RelWithDebInfo, MinSizeRel, Coverage, NoOptWithASM, O2WithASM, O3WithASM, ASAN.
- Updated links along the source code.
- Updated links in comments along the source code and in CMake scripts.
### Improvements in Portability: