Struct burst_despreader_state_t¶

ClassList > burst_despreader_state_t

BurstDespreader state. More...

• #include <burst_despreader_core.h>

Public Attributes¶

Detailed Description¶

Allocate with burst_despreader_create().

Public Attributes Documentation¶

variable acc_e¶

float _Complex burst_despreader_state_t::acc_e;

early correlator accumulator.

variable acc_l¶

float _Complex burst_despreader_state_t::acc_l;

late correlator accumulator.

variable acc_p¶

float _Complex burst_despreader_state_t::acc_p;

prompt correlator accumulator.

variable acq_code¶

uint8_t* burst_despreader_state_t::acq_code;

owned acq code, NULL if payload-only.

variable acq_reps¶

size_t burst_despreader_state_t::acq_reps;

preamble periods to track before payload.

variable acq_sf¶

size_t burst_despreader_state_t::acq_sf;

acq code length, chips/period.

variable car_phase¶

double burst_despreader_state_t::car_phase;

current carrier phase, radians.

variable car_w¶

double burst_despreader_state_t::car_w;

current carrier angular freq, rad/sample.

variable chip_pos¶

double burst_despreader_state_t::chip_pos;

prompt code position within symbol, chips.

variable code¶

uint8_t* burst_despreader_state_t::code;

owned spreading code, 0/1, length sf.

variable code_rate¶

double burst_despreader_state_t::code_rate;

chips advanced per nominal chip (~1.0).

variable lf_car¶

loop_filter_state_t burst_despreader_state_t::lf_car;

carrier (Costas) loop.

variable lf_code¶

loop_filter_state_t burst_despreader_state_t::lf_code;

code (DLL) loop.

variable lock_metric¶

double burst_despreader_state_t::lock_metric;

mean of |Re P|/|P| over the burst (~1 locked, ~2/pi with no carrier).

variable preamble_left¶

size_t burst_despreader_state_t::preamble_left;

preamble periods still to consume.

variable seed_chip¶

double burst_despreader_state_t::seed_chip;

create-time code phase, chips, for reset.

variable seed_w¶

double burst_despreader_state_t::seed_w;

create-time carrier angular freq, rad/sample.

variable sf¶

size_t burst_despreader_state_t::sf;

spreading factor = code length, chips/symbol.

variable snr_est¶

double burst_despreader_state_t::snr_est;

accumulate-then-ratio post-despread SNR: (sum Re^2 - sum Im^2)/sum Im^2, clamped >= 0.

variable sps¶

size_t burst_despreader_state_t::sps;

samples per chip (>= 2).

variable stat_n¶

size_t burst_despreader_state_t::stat_n;

prompts folded into the burst statistics.

variable sum_im2¶

double burst_despreader_state_t::sum_im2;

running sum of Im(P)^2.

variable sum_lock¶

double burst_despreader_state_t::sum_lock;

running sum of |Re P|/|P|.

variable sum_re2¶

double burst_despreader_state_t::sum_re2;

running sum of Re(P)^2.

variable tsamps¶

size_t burst_despreader_state_t::tsamps;

sf*sps, symbol period in samples.

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