jens
3adaef0094
git-svn-id: http://moon:8086/svn/software/trunk/libsrc/radio@992 b431acfa-c32f-4a4a-93f1-934dc6c82436
94 lines
2.6 KiB
C
Executable File
94 lines
2.6 KiB
C
Executable File
// --------------------------------------------------------------
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#ifndef _RADIO_SYNCHRONIZATION_H_
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#define _RADIO_SYNCHRONIZATION_H_
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#include "radio_types.h"
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#include "nco.h"
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#define LEAD_LAG_SCALING ((radio_float_t)1024*1024)
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// --------------------------------------------------------------
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// Types
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// --------------------------------------------------------------
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typedef struct _sample_clock_t
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{
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uint32_t reload;
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int32_t count;
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} sample_clock_t;
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typedef struct _lead_lag_filter_t
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{
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radio_float_t lag_state;
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} lead_lag_filter_t;
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typedef struct _lead_lag_coeff_t
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{
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radio_float_t lead;
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radio_float_t lag;
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} lead_lag_coeff_t;
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typedef struct _str_t
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{
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cpx_t d[2];
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} str_t;
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typedef struct _pfd_t
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{
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uint32_t state_up;
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uint32_t state_down;
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} pfd_t;
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typedef struct _timing_corrector_t
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{
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radio_float_t mu;
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radio_float_t mu_filtered;
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radio_float_t wrap_alpha;
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radio_float_t wrap_beta;
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uint32_t skip[2];
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uint32_t stuff[2];
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} timing_corrector_t;
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// --------------------------------------------------------------
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// Functions
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// --------------------------------------------------------------
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#ifdef __cplusplus
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extern "C" {
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#endif
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void ClockInit(sample_clock_t *pObj, uint32_t divide);
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uint32_t ClockIsTick(sample_clock_t *pObj, uint32_t do_advance);
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void ClockAdvance(sample_clock_t *pObj);
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void ClockSetPhase(sample_clock_t *pObj, int32_t phase);
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void STRGardnerInit(str_t *pObj);
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radio_float_t STRGardnerProcess(str_t *pObj, cpx_t x);
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radio_float_t PhaseErrQPSK(cpx_t x);
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radio_float_t PhaseErr(cpx_t x, radio_float_t pstep, radio_float_t poffset);
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void PfdInit(pfd_t *pObj);
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radio_float_t PfdProcess(pfd_t *pObj, radio_float_t x, radio_float_t k);
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void LeadLagInit(lead_lag_filter_t *pObj, radio_float_t state);
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void LeadLagSetCoeff(lead_lag_coeff_t *pCoeff, radio_float_t lead, radio_float_t lag);
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radio_float_t LeadLagProcess(lead_lag_filter_t *pObj, lead_lag_coeff_t *pCoeff, radio_float_t x);
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radio_float_t LeadLagGetState(lead_lag_filter_t *pObj);
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void LeadLagSetState(lead_lag_filter_t *pObj, radio_float_t state);
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void TimingCorrectorInit(timing_corrector_t *pObj, radio_float_t wrap_alpha);
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radio_float_t TimingCorrectorProcess(timing_corrector_t *pObj, radio_float_t dMu);
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radio_float_t TimingCorrectorGetMu(timing_corrector_t *pObj);
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uint32_t TimingCorrectorIsSkip(timing_corrector_t *pObj);
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uint32_t TimingCorrectorIsStuff(timing_corrector_t *pObj);
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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// --------------------------------------------------------------
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#endif // _RADIO_SYNCHRONIZATION_H_
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