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SignalSimilarity

proof_engine::dsp::analysis

Struct SignalSimilarity

pub struct SignalSimilarity;

Expand description

Signal similarity measures: cross-correlation and dynamic time warping.

Implementations§

impl SignalSimilarity

pub fn cross_correlation(a: &[f32], b: &[f32]) -> Vec<f32>

Full cross-correlation of a and b.

pub fn normalized_cross_correlation(a: &[f32], b: &[f32]) -> f32

Normalized cross-correlation: peak value of NCC (0..1).

pub fn dtw_distance(a: &[f32], b: &[f32]) -> f32

Dynamic Time Warping distance between two sequences.

pub fn dtw_distance_windowed(a: &[f32], b: &[f32], window: usize) -> f32

DTW with Sakoe-Chiba band constraint (faster for long sequences).

pub fn pearson(a: &[f32], b: &[f32]) -> f32

Pearson correlation coefficient between two signals.

pub fn mse(a: &[f32], b: &[f32]) -> f32

Mean Squared Error between two signals.

pub fn snr_db(signal: &[f32], noise: &[f32]) -> f32

Signal-to-Noise Ratio (dB): SNR = 10 log10(signal_power / noise_power).

Auto Trait Implementations§

impl Freeze for SignalSimilarity

impl RefUnwindSafe for SignalSimilarity

impl Send for SignalSimilarity

impl Sync for SignalSimilarity

impl Unpin for SignalSimilarity

impl UnsafeUnpin for SignalSimilarity

impl UnwindSafe for SignalSimilarity

Blanket Implementations§

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