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  • Hatillo, Puerto Rico
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perazaharmonics/README.md

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Enrique / perazaharmonics

RF • Digital Signal Processing • SDR • Real-time Systems • Software Development

I just really like signals. Computers make waveforms go zoom. So I program those too.

C++ Go DSP SDR Kubernetes RHEL


About

  • DSP/RF engineer building tools to process data with nice shapes on C++, mostly
  • Works on telemetry ground systems (AOS, commutators, packet processors) and SDR pipelines.
  • Architects Software Defined Radios and optimizes them for Real-Time systems.
  • Hardcore punk, man. Drumming, mathematical proofs, and gorgeous signals.
  • Software Systems Engineer More Real-Time signal processing; less web development.

Current Work

  • FCWTransforms — FFTs (Split-Radix, PFA, Bluestein, Rader, Stockham's, etc), DWT, MUSIC, PCA, Spectral Windows; Cosine Transforms.
  • Adaptive Wavelet Synthesizer (AWSynth) — live wavelet synthesis for timbre morphing.
  • The Projectionist - 4D Noise Field Projector unto a waveshapen LFO. Audio Scaping Engine.
  • Waveguide Modeling — physical strings, bodies, FDN reverbs, 2D/3D meshes; fractional delays (Thiran→Farrow).
  • EsPeranzaSDR — VITA-49/DIFI transport, Spectrally robust, re-toolable Software Defined Radio and Radar. Phased Array and MIMO capable. Esperanza Radio.

Visual Gallery — RF / DSP

QPSK Constellation (Dark) Windowed FFT Spectrum (Dark)

CWT Scalogram (Dark) 3D Ambiguity Surface (τ vs ν)


Projectionist — 4D Noise Fields

Simplex 4D Noise Field Value 4D Noise Field Voronoi 4D Noise Field

Wavelet 4D Noise Field Fractal Brownian Motion 4D Noise Field Tiling 4D Noise Field

OpenSimplex Proxy 4D Noise Field Cell 4D Noise Field

Generated via Python simulation of Shape4D() dispatcher for C++ Projectionist Synth.

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Selected Projects

  • FCWTransforms — transforms toolkit: FFTs, DCTs, DWTs, MUSIC/ESPRIT Estimators; AF(w) Resolvers && Goertzel Tone Ranger (RADARs).
  • Time Frequency Analysis — Multi Resolution Analysis.
  • Digital Image Processing — 2D Spectral analysis kernels.
  • [Wavelet Projectionist Synth (WAVEPRO)] — Wavelet atom injector of the waveform into itself.
  • Speech Processing - Speech Information extraction through spectral methods.
  • SATMAT — Radio Frequency Ground Station and Satellite Calculations.

Toolchain

  • Languages: C++, C, Go, Python, MATLAB, LabVIEW, JAVA, Bash
  • DSP: FFTs, STFT/WOLA, Wavelets, MUSIC/ESPRIT, Pattern Recognition
  • RF/SDR: DIFI/VITA-49.2, DPDK, framing, constellations, SNR/EB/N₀, Ambiguity Surface Resolution, Phased Arrays
  • Infrastructure: Kubernetes, Helm, Ansible, SR-IOV, Multus, containerd, Prometheus
  • Build/Test: CMake, Make, Catch2, GitHub Actions
  • OS: RHEL 8/9, FedoraLinux, AlmaLimux, Ubuntu, Windows

cyber image

Philosophy

Build it. Break it. Learn from it.
Precision, noise; punk rock.


GitHub stats Top languages

Built for RF, DSP, and clean systems.

Pinned Loading

  1. FCWTransforms FCWTransforms Public

    Fourier, Discrete Cosine, and Wavelet Transforms

    C++

  2. Time-and-Frequency-py Time-and-Frequency-py Public

    Time-Frequency signal space analysis tools in Python

    Python

  3. Image-Processing-Matrices Image-Processing-Matrices Public

    Image processing filters and applications

    MATLAB

  4. Go-Use-a-Kernel Go-Use-a-Kernel Public

    System Utilities in GOLANG

    Go 2

  5. ICRF-Sat-Track ICRF-Sat-Track Public

    A homework I did in my Satellite Communications course during my master's. Two years old. Here for amateurs to have fun.

    Python 1

  6. SATMAT SATMAT Public

    SATCOM Ground Station Calculation in MATLAB

    MATLAB