Enum rfmod::DspFftWindow

pub enum DspFftWindow {
    Rect,
    Triangle,
    Hamming,
    Hanning,
    BlackMan,
    BlackManHarris,
    Max,
    ForceInt,
}

List of windowing methods used in spectrum analysis to reduce leakage / transient signals intefering with the analysis. This is a problem with analysis of continuous signals that only have a small portion of the signal sample (the fft window size). Windowing the signal with a curve or triangle tapers the sides of the fft window to help alleviate this problem.

Variants

Rect

w[n] = 1.0

Triangle

w[n] = TRI(2n/N)

Hamming

w[n] = 0.54 - (0.46 * COS(n/N) )

Hanning

w[n] = 0.5 * (1.0 - COS(n/N) )

BlackMan

w[n] = 0.42 - (0.5 * COS(n/N) ) + (0.08 * COS(2.0 * n/N) )

BlackManHarris

w[n] = 0.35875 - (0.48829 * COS(1.0 * n/N)) + (0.14128 * COS(2.0 * n/N)) - (0.01168 * COS(3.0 * n/N))

Max

Maximum number of FFT window types supported.

ForceInt

Makes sure this enum is signed 32bit.

Trait Implementations

impl Copy for DspFftWindow

impl Debug for DspFftWindow

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl PartialOrd for DspFftWindow

fn partial_cmp(&self, __arg_0: &DspFftWindow) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialEq for DspFftWindow

fn eq(&self, __arg_0: &DspFftWindow) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Clone for DspFftWindow

fn clone(&self) -> DspFftWindow

Returns a copy of the value.

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

Performs copy-assignment from source.