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Radiocom 2000: Use high-pass filter to remove supervisory signal

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This commit is contained in:
Andreas Eversberg
2017-08-19 12:21:35 +02:00
parent ae2b0cce0c
commit 1c2e9180a2
2 changed files with 12 additions and 1 deletions
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src/r2000/r2000.h
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@@ -99,10 +99,12 @@ typedef struct r2000 {
uint32_t super_tx_word; /* supervisory info to transmit */
int super_tx_word_length;
int super_tx_word_pos;
iir_filter_t super_tx_hp; /* filters away the speech that overlaps with the supervisory */
uint32_t super_rx_word; /* shift register for received supervisory info */
double super_rx_level[20]; /* level infos */
double super_rx_quality[20]; /* quality infos */
int super_rx_index; /* index for level and quality buffer */
iir_filter_t super_rx_hp; /* filters away the supervisory */
double super_bittime;
double super_bitpos;