radar signal processing
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CFAR Is Not One Algorithm: Choosing CA-, GO-, SO- and OS-CFAR
CFAR is a family of adaptive detectors. Learn when CA, GO, SO and OS work, where they fail, and why every method needs its own…
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From Chirps to Range–Doppler–Angle Maps: The Mathematics of FMCW Radar
FMCW radar estimates range, radial velocity and angle from three phase progressions in one complex data cube. This guide derives every axis and verifies the…
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Micro-Doppler Explained: How Radar Sees Arms, Legs, and Human Motion
Micro-Doppler reveals how torso and limb velocities change over time. This physics-first guide explains human radar signatures, spectrogram interpretation, sampling limits, common mistakes, and a…
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Why Your Radar Spectrogram Looks Wrong: Choosing STFT Parameters for Micro-Doppler
Window length—not FFT size—is the main control on the STFT time–Doppler trade-off. This practical guide explains how PRF, overlap, window shape and zero-padding affect radar…