Struct carrier_nda_state_t¶

NDA M-th-power carrier loop state. More...

#include <carrier_nda_core.h>

Public Attributes¶

Type	Name
boxcar_state_t	arm
size_t	arm_len
double	bn
double	ctl_cyc
double	last_error
loop_filter_state_t	lf
double	lock
lockdet_state_t	lockdet
int	m
int	n
lo_state_t	nco
double	seed_norm_freq
size_t	sps
carrier_nda_tlm_t	tlm
double	zeta

Detailed Description¶

Allocate with carrier_nda_create(), or embed by value and carrier_nda_init(). The carrier NCO (nco) and PI loop (lf) are public sub-components so a composing receiver can drive the same NCO; treat the arm accumulator and the diagnostics as internal.

Public Attributes Documentation¶

variable arm¶

boxcar_state_t carrier_nda_state_t::arm;

I/Q boxcar moving-average arm (sps/n).

variable arm_len¶

size_t carrier_nda_state_t::arm_len;

moving-average window length (= sps / n).

variable bn¶

double carrier_nda_state_t::bn;

PLL loop noise bandwidth (retained).

variable ctl_cyc¶

double carrier_nda_state_t::ctl_cyc;

NCO control (cyc/sample) for next wipeoff.

variable last_error¶

double carrier_nda_state_t::last_error;

last phase discriminator (loop stress).

variable lf¶

loop_filter_state_t carrier_nda_state_t::lf;

2nd-order carrier PI loop.

variable lock¶

double carrier_nda_state_t::lock;

EMA of the lock signal (1 = locked).

variable lockdet¶

lockdet_state_t carrier_nda_state_t::lockdet;

decision rule: thresholds + verify counters stepped on lock each sample (mirrors MpskReceiver's own pre-existing handover step on this same statistic).

variable m¶

int carrier_nda_state_t::m;

constellation order M (2, 4, 8).

variable n¶

int carrier_nda_state_t::n;

sets the MA window (= a 1/n-symbol box).

variable nco¶

lo_state_t carrier_nda_state_t::nco;

integer carrier NCO (uint32 phase).

variable seed_norm_freq¶

double carrier_nda_state_t::seed_norm_freq;

create-time carrier freq, for reset.

variable sps¶

size_t carrier_nda_state_t::sps;

samples per symbol.

variable tlm¶

carrier_nda_tlm_t carrier_nda_state_t::tlm;

live telemetry attachment; zeroed in blobs

variable zeta¶

double carrier_nda_state_t::zeta;

damping factor (retained).

The documentation for this class was generated from the following file native/inc/carrier_nda/carrier_nda_core.h