Struct PowerDelayProfile 

pub struct PowerDelayProfile { /* private fields */ }

A power-delay profile on the sampling grid of the OFDM symbol: checked when it is built, its fields read through getters.

Implementations

impl PowerDelayProfile

pub fn new( delays: Vec<f64>, powers: &[f64], n_fft: usize, ) -> Result<PowerDelayProfile>

A profile from delays (samples of the IFFT of size n_fft) and linear powers, normalised to a unit sum.

Errors

Error::Shape for as many delays as powers; Error::Config for no tap, a zero FFT size, a negative or non-finite delay or power, or powers of zero sum.

Examples

use comnum_waveform::ofdm::estimation::PowerDelayProfile;
let p = PowerDelayProfile::new(vec![0.0, 3.0], &[3.0, 1.0], 64)?;
assert_eq!(p.powers(), &[0.75, 0.25]);
assert!(PowerDelayProfile::new(vec![0.0], &[1.0, 1.0], 64).is_err());
assert!(PowerDelayProfile::new(vec![0.0], &[0.0], 64).is_err());

pub fn uniform(max_delay: usize, n_fft: usize) -> Result<PowerDelayProfile>

The uniform profile over max_delay samples (the robust design: the cyclic prefix; one tap at least).

Errors

Error::Config for a zero FFT size.

pub fn delays(&self) -> &[f64]

The delays (samples of the IFFT of size PowerDelayProfile::n_fft).

pub fn powers(&self) -> &[f64]

The powers (linear, of unit sum).

pub fn n_fft(&self) -> usize

The IFFT size $N$ the delays refer to.

pub fn correlation(&self, delta: f64) -> C64

$R(\Delta k)$ between subcarriers $\Delta k$ apart (comnum_dsp::estimation::frequency_correlation).

Trait Implementations

impl Clone for PowerDelayProfile

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PowerDelayProfile

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

Formats the value using the given formatter.

impl PartialEq for PowerDelayProfile

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PowerDelayProfile