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TX filter coefficients for 48 kHz

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This commit is contained in:
Andy CA6JAU
2017-10-14 12:18:43 -03:00
parent e469294348
commit 551eac3140
7 changed files with 46 additions and 22 deletions
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P25TX.cpp
+9 -5
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@@ -23,11 +23,15 @@
#include "P25Defines.h"
// Generated using rcosdesign(0.2, 8, 5, 'normal') in MATLAB
// numTaps = 40, L = 5
static q15_t RC_0_2_FILTER[] = {-897, -1636, -1840, -1278, 0, 1613, 2936, 3310, 2315, 0, -3011, -5627, -6580, -4839,
0, 7482, 16311, 24651, 30607, 32767, 30607, 24651, 16311, 7482, 0, -4839, -6580, -5627,
-3011, 0, 2315, 3310, 2936, 1613, 0, -1278, -1840, -1636, -897, 0}; // numTaps = 40, L = 5
// Generated using rcosdesign(0.2, 8, 10, 'normal') in MATLAB
static q15_t RC_0_2_FILTER[] = {-444, -897, -1311, -1636, -1825, -1840, -1659, -1278, -712, 0,
800, 1613, 2354, 2936, 3277, 3310, 2994, 2315, 1296, 0, -1478,
-3011, -4448, -5627, -6386, -6580, -6090, -4839, -2800, 0, 3474,
7482, 11835, 16311, 20666, 24651, 28032, 30607, 32219, 32767,
32219, 30607, 28032, 24651, 20666, 16311, 11835, 7482, 3474, 0,
-2800, -4839, -6090, -6580, -6386, -5627, -4448, -3011, -1478,
0, 1296, 2315, 2994, 3310, 3277, 2936, 2354, 1613, 800, 0, -712,
-1278, -1659, -1840, -1825, -1636, -1311, -897, -444, 0}; // numTaps = 80, L = 10
const uint16_t RC_0_2_FILTER_PHASE_LEN = 8U; // phaseLength = numTaps/L
// Generated in MATLAB using the following commands, and then normalised for unity gain