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ChirpChat: add option to reverse the chips sequence orientation. Fixes #2618

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This commit is contained in:
f4exb
2026-01-24 22:11:17 +01:00
parent 7cc44d3878
commit ab6c0ee5e7
30 changed files with 577 additions and 32 deletions
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plugins/channeltx/modchirpchat/chirpchatmodsource.cpp
+4 -4
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@@ -197,7 +197,7 @@ void ChirpChatModSource::modulateSample()
}
else if (m_state == ChirpChatStatePreamble)
{
m_modPhasor += m_phaseIncrements[m_chirp]; // up chirps
m_modPhasor += (m_settings.m_invertRamps ? -1 : 1) * m_phaseIncrements[m_chirp]; // preamble chirps
m_modSample = Complex(std::polar(0.891235351562 * SDR_TX_SCALED, m_modPhasor));
m_fftCounter++;
@@ -228,7 +228,7 @@ void ChirpChatModSource::modulateSample()
}
else if (m_state == ChirpChatStateSyncWord)
{
m_modPhasor += m_phaseIncrements[m_chirp]; // up chirps
m_modPhasor += (m_settings.m_invertRamps ? -1 : 1) * m_phaseIncrements[m_chirp]; // sync chirps same orientation as preamble
m_modSample = Complex(std::polar(0.891235351562 * SDR_TX_SCALED, m_modPhasor));
m_fftCounter++;
@@ -251,7 +251,7 @@ void ChirpChatModSource::modulateSample()
}
else if (m_state == ChirpChatStateSFD)
{
m_modPhasor -= m_phaseIncrements[m_chirp]; // down chirps
m_modPhasor -= (m_settings.m_invertRamps ? -1 : 1) * m_phaseIncrements[m_chirp]; // SFD chirps
m_modSample = Complex(std::polar(0.891235351562 * SDR_TX_SCALED, m_modPhasor));
m_fftCounter++;
m_sampleCounter++;
@@ -280,7 +280,7 @@ void ChirpChatModSource::modulateSample()
}
else if (m_state == ChirpChatStatePayload)
{
m_modPhasor += m_phaseIncrements[m_chirp]; // up chirps
m_modPhasor += (m_settings.m_invertRamps ? -1 : 1) * m_phaseIncrements[m_chirp]; // payload chirps
m_modSample = Complex(std::polar(0.891235351562 * SDR_TX_SCALED, m_modPhasor));
m_fftCounter++;