Signal Processing Simulators

Adaptive Filter Lms Simulator

Signal Processing

Explore LMS adaptive-filter convergence and misadjustment from step size, tap count, input power, noise level, and plant drift.

AM/FM Modulation Simulator

Signal Processing

AM/FM Modulation Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Autocorrelation Function Simulator — Period Detection

Signal Processing

Autocorrelation Function Simulator — Period Detection compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Bit Error Rate (BER) Simulator

Signal Processing

Bit Error Rate (BER) Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Chirp-Z Transform / Zoom-DFT Simulator — High-Resolution Narrow-Band Analysis

Signal Processing

Chirp-Z Transform simulator for high-resolution narrow-band frequency analysis.

Compressive Sensing & L1 Reconstruction Simulator

Signal Processing

A hands-on simulator for compressive sensing: recover a "sparse" N-dimensional signal that has only K non-zero entries from far fewer than Nyquist

DFT Leakage Window Detail Simulator

Signal Processing

DFT Leakage Window Detail Simulator updates live numeric results and charts as inputs change, supporting early design checks and model review.

Digital Filter Designer (IIR/FIR)

Signal Processing

Design Butterworth, Chebyshev, and FIR filters. Visualize frequency response, coefficients, and test signals in real-time with this advanced digital filter designer tool.

Dynamic Time Warping (DTW) Simulator

Signal Processing

Dynamic Time Warping (DTW) Simulator: An interactive tool for Dynamic Time Warping, the classic algorithm that compares two time series whose speed o…

Eye Diagram Simulator

Signal Processing

Eye Diagram Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

FFT Spectrum Analyzer Simulator

Signal Processing

Simulate FFT spectrum analysis with up to 5 sine waves. Explore windowing, spectral leakage, THD, and DFT parameters like frequency resolution in real time.

FIR Filter Design Simulator — Window Method

Signal Processing

Design linear-phase FIR low-pass filters by the window method. Impulse, dB magnitude, transition width, stopband attenuation and group delay update live.

Fourier Epicycles Simulator — Draw Any Curve with Rotating Circles

Signal Processing

Draw a curve with your mouse and watch it decomposed by DFT into rotating circles (epicycles).

Fourier Series Visualizer — Rotating Phasors & Wave Synthesis

Signal Processing

Visualize Fourier series in real-time: synthesize square, sawtooth, and triangle waves from rotating phasors. See harmonics converge and Gibbs phenomenon.

Fourier Series Simulator — Waveform Synthesis & Harmonic Spectrum

Signal Processing

Explore Fourier series synthesis: simulate square, triangle, and sawtooth waves with 1-50 harmonics. Watch Gibbs phenomenon and harmonic spectrum evolve in real-time.

Fourier Transform Visualizer — FFT Spectrum Analyzer

Signal Processing

Explore Fourier transforms interactively. Adjust signals, windows and frequencies with sliders to visualize real-time waveform and spectrum changes.

Goertzel Algorithm Simulator — DTMF Single Frequency Detection

Signal Processing

Detect DTMF tones with the Goertzel algorithm. A second-order IIR filter extracts 8 DFT bins in O(N), ideal for embedded single-tone detection without an FFT.

Hilbert Transform & Analytic Signal — Envelope Detection

Signal Processing

Hilbert Transform & Analytic Signal — Envelope Detection focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend th…

Bilinear Transform Simulator — Analog to Digital IIR

Signal Processing

Bilinear Transform Simulator — Analog to Digital IIR: Convert an analog first-order lowpass filter H(s)=ωc/(s+ωc) into a digital IIR filter with the…

IIR Filter Designer — Butterworth Low-Pass Magnitude Response

Signal Processing

Design a Butterworth low-pass filter and visualize its gain |H(jω)| on a Bode plot. Change cutoff f_c, order N, stopband edge f_s and attenuation A_s to study roll-off.

Laplace Transform Calculator & Visualizer

Signal Processing

Master Laplace transforms with our interactive calculator. Visualize f(t) and F(s), compute partial fractions, and explore pole-zero maps in real time.

Matched Filter Simulator — Pulse Detection in Noise

Signal Processing

Matched filter simulator: detect a known pulse in white noise via convolution. Compute input/output SNR and processing gain in real time, visualize gain = L.

MFCC Feature Simulator — Mel-Frequency Cepstral Coefficients

Signal Processing

MFCC Feature Simulator — Mel-Frequency Cepstral Coefficients focuses on vibration or acoustic response and frequency behavior, giving a compact read on the current case …

Mutual Information (MI) Estimation Simulator

Signal Processing

Mutual Information (MI) Estimation Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters n…

Nyquist Sampling Theorem Simulator — Aliasing of Sampled Signals

Signal Processing

Nyquist Sampling Theorem Simulator — Aliasing of Sampled Signals focuses on control response, stability margin, and tuning assumptions, giving a compact read on the curr…

Parseval's Theorem — Energy Conservation in Time and Frequency

Signal Processing

Parseval's Theorem simulator: verify time-domain and frequency-domain energy equivalence in DFT signals using sinusoids, pulses, and Gaussians for si…

Shannon Channel Capacity Simulator — Information Theory Limit

Signal Processing

Compute Shannon-Hartley capacity C=B·log2(1+S/N) in real time from bandwidth, signal and noise power.

Digital Filter Frequency Response Design Tool

Signal Processing

Design and visualize Butterworth, Chebyshev & Bessel IIR filter responses in real time. Adjust type, order, and cutoff frequency instantly.

Signal Modulation Simulator

Signal Processing

Visualize AM, FM, and PM modulation in real time. Adjust parameters like carrier frequency and modulation index to see waveforms and spectra.

Signal & Noise SNR Analyzer

Signal Processing

Analyze signal integrity in real time. Add noise types, compute SNR/ENOB, and visualize results with this interactive CAE tool.

Sampling Theorem & Aliasing Visualizer

Signal Processing

Visualize the Nyquist-Shannon sampling theorem interactively. See real-time aliasing when sampling is too slow and understand the Nyquist frequency.

Spread Spectrum Processing Gain Simulator

Signal Processing

Spread Spectrum Processing Gain Simulator compares how manufacturing conditions, quality margin, and process sensitivity shifts as the main assumptions change.

Waveform Generator & Synthesizer — RMS, FFT Spectrum, THD Calculator

Signal Processing

Design complex waveforms by combining up to 4 signal components. Instantly analyze key metrics like RMS, THD, and crest factor while visualizing the composite result.

Daubechies-4 Wavelet Simulator — db4 Multiresolution Analysis

Signal Processing

Interactive Daubechies-4 (db4) wavelet simulator: multi-level DWT of 1D signals, thresholding of detail coefficients, and reconstruction MSE. Smoother basis than Haar.

Haar Wavelet Transform Simulator — Multiresolution Analysis and Compression

Signal Processing

Haar Wavelet Transform Simulator — Multiresolution Analysis and Compression focuses on vibration or acoustic response and frequency behavior, giving a compact read on th…

Window Function Spectral Comparison — Mainlobe Width and Sidelobe Suppression

Signal Processing

Window Function Spectral Comparison tool for analyzing mainlobe width and sidelobe suppression in rectangular, Hann, Hamming, Blackman windows.

Z-Transform & Digital Signal System Analyzer

Signal Processing

Visualize and analyze digital filters in real-time. Enter H(z) coefficients to get pole-zero plots, frequency & impulse responses, and stability checks.