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Add a choice of C4FSK filters.

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This commit is contained in:
Jonathan Naylor
2016-07-11 18:02:53 +01:00
parent 57b90920fe
commit 2f648b3f79
3 changed files with 57 additions and 2 deletions
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DMRTX.cpp
+6 -1
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@@ -27,6 +27,7 @@
#define USE8
// #define USE6
// #define USE4
// #define USE2
#if defined(USE8)
// Generated using rcosdesign(0.2, 8, 5, 'sqrt') in MATLAB
@@ -45,8 +46,12 @@ const uint16_t DMR_C4FSK_FILTER_LEN = 32U;
static q15_t DMR_C4FSK_FILTER[] = {688, -680, -2158, -3060, -2724, -775, 2684, 7041, 11310, 14425, 15565, 14425,
11310, 7041, 2684, -775, -2724, -3060, -2158, -680, 688, 0};
const uint16_t DMR_C4FSK_FILTER_LEN = 22U;
#elif defined(USE2)
// Generated using rcosdesign(0.2, 2, 5, 'sqrt') in MATLAB
static q15_t DMR_C4FSK_FILTER[] = {-792, 2742, 7192, 11553, 14735, 15900, 14735, 11553, 7192, 2742, -792, 0};
const uint16_t DMR_C4FSK_FILTER_LEN = 12U;
#else
#error "Must define one of USE8, USE6, or USE4."
#error "Must define one of USE8, USE6, USE4, or USE2."
#endif
const q15_t DMR_LEVELA[] = { 640, 640 , 640, 640, 640};