Struct LdpcCode 

pub struct LdpcCode {
    pub n: usize,
    pub k: usize,
    pub punctured: usize,
    pub circulant_size: usize,
    pub submatrix_size: usize,
    pub mb: usize,
    pub nb: usize,
    pub generator: &'static [u64],
    pub h_matrix: &'static [[[u8; 11]; 4]; 3],
    pub theta: &'static [u8; 26],
    pub phi: &'static [[u16; 26]; 4],
}

Describes a CCSDS AR4JA LDPC code.

Fields

n: usize

Transmitted codeword length in bits.

k: usize

Information block length in bits.

punctured: usize

Number of punctured bits (not transmitted).

circulant_size: usize

Circulant size for the compact generator.

submatrix_size: usize

Block size M for H matrix sub-matrices.

mb: usize

Number of base matrix rows (always 3 for AR4JA).

nb: usize

Number of base matrix columns.

generator: &'static [u64]

Reference to compact generator matrix.

h_matrix: &'static [[[u8; 11]; 4]; 3]

Reference to compact H matrix (3 layers, mb×nb each).

theta: &'static [u8; 26]

Reference to theta lookup table.

phi: &'static [[u16; 26]; 4]

Reference to phi lookup table (4 × 26).

Implementations

impl LdpcCode

pub fn parity_bits(&self) -> usize

Number of parity bits (n - k).

pub fn info_bytes(&self) -> usize

Number of info bytes.

pub fn codeword_bytes(&self) -> usize

Number of codeword bytes.

pub fn parity_bytes(&self) -> usize

Number of parity bytes.

Trait Implementations

impl Clone for LdpcCode

fn clone(&self) -> LdpcCode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LdpcCode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for LdpcCode