Struct async_dsss_receiver_status_t¶

ClassList > async_dsss_receiver_status_t

One consistent picture of what the receiver is doing, by value. More...

• #include <async_dsss_receiver_core.h>

Public Attributes¶

Detailed Description¶

The status record of docs/design/async-dsss-receiver.md section 11.3: the holder of a pool reads it on demand once per data-free window at least, because the searcher's exclusion zone is keyed on the receiver's CURRENT estimate, not on its seed and gets every field from one call, so a reader on another thread never assembles a picture across a steps() from the one-at-a-time getters (which remain the same fields' other face). It is a read of live state, not get_state(): the bytes triplet resumes the receiver elsewhere, this describes it here. No timestamp: the counters are in input samples, and the holder, which owns the sample clock, stamps them (section 2.2's rule).

Public Attributes Documentation¶

variable both_down_samples¶

uint64_t async_dsss_receiver_status_t::both_down_samples;

Input samples both flags have been down without a break (the release clock); in lost it keeps counting samples since the flags dropped.

variable car_last_error¶

double async_dsss_receiver_status_t::car_last_error;

Pre-despread Costas residual, rad.

variable chip_phase¶

double async_dsss_receiver_status_t::chip_phase;

Live Dll code phase, chips.

variable cn0_dbhz_est¶

double async_dsss_receiver_status_t::cn0_dbhz_est;

C/N0 estimate, dB-Hz (the hit's).

variable code_locked¶

int async_dsss_receiver_status_t::code_locked;

Presence flag: the Dll's lock detector.

variable code_rate¶

double async_dsss_receiver_status_t::code_rate;

Live Dll code rate, chips/sample.

variable doppler_hz¶

double async_dsss_receiver_status_t::doppler_hz;

Where the emitter is NOW: the whole carrier estimate, Hz loop 1's plus what loop 2 has taken up beyond it (the seed while refining, 0 when idle, frozen where it was when lost). Only as good as locked: with the carrier unlocked, loop 1 free-runs and this wanders.

variable lock_metric¶

double async_dsss_receiver_status_t::lock_metric;

cos(2*phi) over the symbols, drives locked.

variable lock_threshold¶

double async_dsss_receiver_status_t::lock_threshold;

locked latches above this.

variable locked¶

int async_dsss_receiver_status_t::locked;

Health flag: the symbol-lock detector.

variable mpsk_last_error¶

double async_dsss_receiver_status_t::mpsk_last_error;

Post-despread carrier residual, rad.

variable state¶

int async_dsss_receiver_status_t::state;

ASYNC_DSSS_RX_SEARCHING .. _LOST where it is.

variable state_samples¶

uint64_t async_dsss_receiver_status_t::state_samples;

Input samples since state was entered.

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