Struct CodedDiffraction 

pub struct CodedDiffraction {
    pub n: usize,
    pub n_masks: usize,
    /* private fields */
}

A coded-diffraction forward operator: L random complex masks of length n.

Fields

n: usize

Signal length n.

n_masks: usize

Number of coded patterns L.

Implementations

impl CodedDiffraction

pub fn new( n: usize, n_masks: usize, kind: MaskKind, rng: &mut LcgRng, ) -> CsResult<Self>

Construct n_masks random masks of length n.

Errors

CsError::InvalidParameter for n == 0 or n_masks == 0.

pub fn n_measurements(&self) -> usize

Total number of real measurements m = L · n.

pub fn forward(&self, x: &[f64]) -> CsResult<Vec<f64>>

Phaseless forward measurement y = |A_l x|² stacked over all masks.

x is interleaved complex (length 2n). Output is real, length m = L·n, laid out mask-major: y[l·n + k] = |(A_l x)_k|².

Errors

CsError::DimensionMismatch if x.len() != 2n.

pub fn wirtinger_flow( &self, y: &[f64], cfg: &WirtingerConfig, rng: &mut LcgRng, ) -> CsResult<Vec<f64>>

Recover x (up to a global phase) from phaseless measurements y by Wirtinger Flow.

• y — measurements from forward, length m = L·n.
• cfg — algorithm configuration.
• rng — RNG for the spectral-initialisation power iteration.

Returns the recovered interleaved-complex signal (length 2n).

Errors

• CsError::DimensionMismatch if y.len() != m.
• CsError::NumericalInstability if the spectral initialiser degenerates.

Trait Implementations

impl Clone for CodedDiffraction

fn clone(&self) -> CodedDiffraction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CodedDiffraction

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

Formats the value using the given formatter.