📡 Signals & Telecommunications

AM / FM ModulationInteractive amplitude and frequency modulation simulator. See carrier, message and modulated… FFT Spectrum AnalyzerReal-time FFT frequency spectrum analyzer using the Web Audio API. Visualise sine, noise,… Antenna Radiation PatternsInteractive polar plot of antenna radiation patterns: isotropic, dipole, monopole, Yagi-Uda,… Optical Fiber & Total Internal ReflectionVisualise total internal reflection, critical angle, numerical aperture and V-number in a… Digital Filter (FIR/IIR) — Bode Plot & Frequency ResponseInteractive FIR/IIR digital filter designer. Visualise Bode plot (magnitude + phase),… OFDM & WiFi Subcarriers — Multicarrier ModulationInteractive OFDM simulator. Visualise how WiFi splits data across orthogonal subcarriers,… Phase-Locked Loop (PLL) — Clock Recovery & Carrier SyncInteractive PLL simulator. Watch a phase-locked loop lock onto a noisy carrier. Adjust VCO… GPS TrilaterationNewFix a receiver position from satellite ranges r=c·Δt — three circles pin the location, a… 2D Image FFTNewSee an image, its 2D Fourier magnitude spectrum, and the result of frequency-domain… Doppler Weather RadarNewA Doppler radar measures radial velocity via Δf=2v_r·f/c on a rotating PPI display. Only the… Spectral AnalysisNewFFT, spectrogram, STFT windowing and frequency domain analysis of signals. Noise CancellationNewVisualise how active noise cancellation uses anti-phase signals to destructively interfere… Phase-Locked Loop — Locking onto a SignalNewA PLL compares its oscillator's phase to an input, then adjusts to track it. This feedback… Nyquist Sampling — When Digital Captures AnalogueNewTo capture a signal you must sample above twice its highest frequency (Nyquist rate). Sample… Convolution — How Filters Reshape SignalsNewConvolution slides one function over another, multiplying and summing at each shift. It is… Wavelet Transform — Haar & DaubechiesNewDecompose a signal with Discrete Wavelet Transform (DWT). Haar and Daubechies-4 filters… 6G Technology: Massive MIMO BeamformingNewSteer a terahertz massive-MIMO phased-array beam toward a receiver: tune carrier frequency… Cloud Computing Cloud Monitoring SimulationNewThis simulation demonstrates how to monitor a cloud computing environment for performance… Dynamic Ocean Acoustic Monitoring SimulationNewThis simulation demonstrates how acoustic monitoring is used to study underwater… Fourier Wave DecompositionNewThis simulation allows you to explore the Fourier transform by visually decomposing complex… Fourier Transform Visualizer Signals Spectra ConvolutionNewThis simulation allows you to visualize the Fourier Transform of various signals, observe… Fourier Series WaveNewThis simulation showcases the representation of waves using Fourier series. Users can… Waveform VisualizerNewThis simulation provides an interactive visualization of various waveforms. Users can adjust…