📡 Signals & Telecommunications

Nyquist Sampling (2D) — When Digital Captures AnalogueNew📱Canvas 2D companion to the Nyquist sampling simulation: sample a continuous sine or two-tone… OFDM Subcarrier Spectrum (2D)New📱This 2D Canvas simulation sums N orthogonal subcarrier waves, each at an integer multiple of… 2D Image FFT (2D)New📱A real 2D Fast Fourier Transform of a test image running on plain Canvas2D: a row-column… Waveform Visualizer (2D)New📱A 2D canvas equalizer built from additive sine-harmonic synthesis with live controls. Doppler Weather Radar (2D)New📱A 2D Canvas PPI radar display that colours precipitation cells by radial velocity, showing… Spectral Analysis (2D)New📱Build a signal from up to six harmonics and watch its FFT magnitude spectrum and live… Convolution (2D) — Discrete Signal & Kernel LabNew📱Canvas 2D discrete-convolution lab: pick or hand-draw an input signal, choose a box,… Fourier Wave Decomposition — 3DNew📱A 3D companion to Fourier Wave Decomposition: the same square/sawtooth/triangle… GPS Trilateration (2D): Least-Squares Fix & Dilution of PrecisionNew📱2D GPS trilateration lab: place 3-8 satellites, add real range noise, and watch a… Phased Array Near-Field Wave InterferenceNew📱A 2D companion to the 3D antenna radiation-pattern visualizer: instead of only plotting the… 2D AM/FM ModulationNew📱2D AM and FM modulation simulator with a real FFT-driven spectrum. Watch true… 2D FFT Spectrum Analyzer: Build the Fast Fourier Transform From ScratchNew📱A plain 2D-canvas spectrum analyzer with a hand-written radix-2 Cooley-Tukey FFT: mix… Optical Fiber Light Rays (2D, Snell's Law & Bend Loss)New📱2D side-view optical fiber ray tracer: real Snell's-law refraction and total internal… 2D Digital Filter Designer — FIR/IIR Difference Equation & DFTNew📱Design a real FIR (moving-average or windowed-sinc) or IIR (cascaded biquad… Phase-Locked Loop — 2D Mixer, Loop Filter & VCONew📱A genuine 2D phase-locked-loop simulation: an analog-multiplier phase detector compares the… DMX512 Lighting Console 2D: Serial Frame & Stage Beam ModelNew📱A 2D DMX512 lighting-console simulator: patch four RGB stage fixtures onto a serial… AI Cognitive Radio: 2D Bandit Spectrum-Access SimulatorNew📱2D companion to the 3D cognitive-radio waterfall, computed independently: a Q-learning agent… AI Cognitive Radio: Dynamic Spectrum Access SimulatorNew📱An AI secondary-user agent learns via Q-learning which radio channels are free from… DMX512 Lighting ConsoleNew📱Patch four RGB stage fixtures onto a DMX512 universe, drive their raw channel bytes from a… Contact Network SimulatorNew📱Watch messages relay between a central hub and its contacts, with send rate, signal speed… 6G Technology: Massive MIMO BeamformingNew📱Steer a terahertz massive-MIMO phased-array beam toward a receiver: tune carrier frequency… Cloud Computing Cloud Monitoring SimulationNew📱This simulation demonstrates how to monitor a cloud computing environment for performance… Dynamic Ocean Acoustic Monitoring SimulationNew📱This simulation demonstrates how acoustic monitoring is used to study underwater… Fourier Wave DecompositionNew📱This simulation allows you to explore the Fourier transform by visually decomposing complex… Fourier Transform Visualizer Signals Spectra ConvolutionNew📱This simulation allows you to visualize the Fourier Transform of various signals, observe… Fourier Series WaveNew📱This simulation showcases the representation of waves using Fourier series. Users can… Waveform VisualizerNew📱This simulation provides an interactive visualization of various waveforms. Users can adjust… Wavelet Transform — Haar & DaubechiesNew📱Decompose a signal with Discrete Wavelet Transform (DWT). Haar and Daubechies-4 filters… Phase-Locked Loop — Locking onto a SignalNew📱A PLL compares its oscillator's phase to an input, then adjusts to track it. This feedback… Nyquist Sampling — When Digital Captures AnalogueNew📱To capture a signal you must sample above twice its highest frequency (Nyquist rate). Sample… Convolution — How Filters Reshape SignalsNew📱Convolution slides one function over another, multiplying and summing at each shift. It is… Noise CancellationNew📱Visualise how active noise cancellation uses anti-phase signals to destructively interfere… Spectral AnalysisNew📱Explore spectral analysis with our physics simulation. Analyze signals via FFT, spectrograms… GPS TrilaterationNew📱Fix a receiver position from satellite ranges r=c·Δt — three circles pin the location, a… 2D Image FFTNew📱See an image, its 2D Fourier magnitude spectrum, and the result of frequency-domain… Doppler Weather RadarNew📱A Doppler radar measures radial velocity via Δf=2v_r·f/c on a rotating PPI display. Only the… AM / FM Modulation📱Interactive amplitude and frequency modulation simulator. See carrier, message and modulated… FFT Spectrum Analyzer📱Real-time FFT frequency spectrum analyzer using the Web Audio API. Visualise sine, noise,… Antenna Radiation Patterns📱Interactive polar plot of antenna radiation patterns: isotropic, dipole, monopole, Yagi-Uda,… Optical Fiber & Total Internal Reflection📱Visualise total internal reflection, critical angle, numerical aperture and V-number in a… Digital Filter (FIR/IIR) — Bode Plot & Frequency Response📱Interactive FIR/IIR digital filter designer. Visualise Bode plot (magnitude + phase),… OFDM & WiFi Subcarriers — Multicarrier Modulation📱Interactive OFDM simulator. Visualise how WiFi splits data across orthogonal subcarriers,… Phase-Locked Loop (PLL) — Clock Recovery & Carrier Sync📱Interactive PLL simulator. Watch a phase-locked loop lock onto a noisy carrier. Adjust VCO…