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Add the Inverse-Sinc low-pass filter for P25 TX.

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Jonathan Naylor
2016-09-15 18:08:40 +01:00
parent 55db02461c
commit e9c2388d32
2 changed files with 21 additions and 2 deletions
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P25TX.h
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@@ -38,7 +38,9 @@ public:
private:
CSerialRB m_buffer;
arm_fir_instance_q15 m_modFilter;
arm_fir_instance_q15 m_lpFilter;
q15_t m_modState[70U]; // NoTaps + BlockSize - 1, 42 + 20 - 1 plus some spare
q15_t m_lpState[70U]; // NoTaps + BlockSize - 1, 44 + 20 - 1 plus some spare
uint8_t m_poBuffer[920U];
uint16_t m_poLen;
uint16_t m_poPtr;