Crate embedded_dsp 

embedded-dsp

A #![no_std] Rust digital signal processing library for microcontrollers, embedded systems, and real-time signal processing applications.

Overview

embedded-dsp provides zero-allocation digital signal processing algorithms:

• Basic Math: Elementwise addition, subtraction, multiplication, dot product, scale, shift, clip, logic ops.
• Complex Math: Complex vector addition, multiplication, magnitude, magnitude squared, conjugate, dot product.
• Fast Math: Trigonometric (sin, cos, atan2), square root, division, log, exp.
• Statistics: Mean, variance, standard deviation, RMS, power, min/max, entropy, Kullback-Leibler, LogSumExp.
• Support: Vector copy, fill, type conversions (Q7, Q15, Q31, F32), sort, barycenter, weighted sum.
• Matrix: Matrix addition, subtraction, multiplication, scale, transpose, Gauss-Jordan inverse.
• Filtering: FIR, Biquad IIR Direct Form I, LMS adaptive filters, Convolution, Correlation.
• Transform: In-place Complex FFT (CFFT), Real FFT (RFFT), DCT-IV, Bit reversal.
• Controller: PID motor controller, Clarke transform, Park transform, Inverse Clarke/Park.
• Interpolation: Linear, Bilinear, Cubic spline interpolation.
• Quaternion: Norm, normalization, product, conjugate, inverse, rotation matrix conversion.
• Window: Hanning, Hamming, Blackman, Bartlett, Welch, Flat-top window generators.
• Distance: Euclidean, Cosine, Chebyshev, Manhattan, Minkowski, Jaccard, Hamming, Canberra, Bray-Curtis.
• Bayes: Gaussian Naive Bayes classifier.
• SVM: Support Vector Machine classifier with Linear, Polynomial, RBF, and Sigmoid kernels.

Re-exports

pub use basic_math::*;

pub use bayes::*;

pub use complex_math::*;

pub use controller::*;

pub use distance::*;

pub use fast_math::*;

pub use filtering::*;

pub use fixed_point::*;

pub use interpolation::*;

pub use math::*;

pub use matrix::*;

pub use quaternion::*;

pub use statistics::*;

pub use support::*;

pub use svm::*;

pub use transform::*;

pub use types::*;

pub use window::*;

Modules

basic_math

Basic math operations (absolute value, addition, subtraction, multiplication, dot product, negation, offset, scale, shift, clip, logic ops).

bayes

Gaussian Naive Bayes Classifier.

complex_math

controller

Controller functions (PID motor control, Clarke transform, Park transform, Inverse Clarke, Inverse Park).

distance

Distance metrics between vectors (Euclidean, Cosine, Chebyshev, Manhattan, Minkowski, Jaccard, Hamming, Canberra, Bray-Curtis).

fast_math

Fast math functions (sin, cos, sin_cos, sqrt, vsqrt, divide, log, exp, atan2).

filtering

Digital filtering functions (FIR, Biquad IIR Direct Form I & II, LMS Adaptive Filter, Convolution, Correlation).

fixed_point

Q16.16 fixed-point math.

interpolation

Interpolation functions (Linear, Bilinear, Spline).

lut

Lookup-table trigonometry.

math

Unified math abstraction providing floating-point mathematical operations using libm in no_std environments or std math when available.

matrix

Matrix operations (addition, subtraction, multiplication, scale, transpose, inverse, complex matrix multiplication).

quaternion

Quaternion math functions (norm, normalize, product, conjugate, inverse, rotation matrix conversion).

statistics

Statistics functions (mean, variance, standard deviation, RMS, power, min, max, absmax, absmin, entropy, Kullback-Leibler, LogSumExp).

support

Support functions (copy, fill, format conversions q7/q15/q31/f32, sort, barycenter, weighted sum).

svm

Support Vector Machine (SVM) Classifier (Linear, Polynomial, RBF, Sigmoid kernels).

transform

Fast Fourier Transform (FFT), Real FFT (RFFT), Discrete Cosine Transform (DCT-IV), and Bit Reversal functions.

types

Data types, status codes, complex structures, and fixed-point helper types.

window

Window functions (Hanning, Hamming, Blackman, Bartlett, Welch, Flat-top window generators).