Target detection, ROC curves, radar equation

The Phased Array System Toolbox™ includes System objects and Simulink® blocks for performing matched filtering, constant false alarm rate (CFAR) detection, stretch-processing pulse compression and coherent and noncoherent pulse integration. Utility functions let you compute and visualize receiver operating characteristic (ROC) curves for various signal-to-noise ratio (SNR) levels or probabilities of false alarm. Some utilities let determine the maximum target detection range. Others let you visualize radar coverage using Blake charts.

System Objects

phased.CFARDetector Constant false alarm rate (CFAR) detector
phased.StretchProcessor Stretch processor for linear FM waveform
phased.TimeVaryingGain Time varying gain control
phased.MatchedFilter Matched filter


CFAR Detector Constant false alarm rate (CFAR) detector
Stretch Processor Stretch processor for linear FM waveforms
Time Varying Gain Time varying gain (TVG) control
Pulse Integrator Coherent or noncoherent pulse integration
Dechirp Mixer Dechirping operation on input signal
Matched Filter Matched filter


npwgnthresh Detection SNR threshold for signal in white Gaussian noise
pulsint Pulse integration
rocpfa Receiver operating characteristic curves by false-alarm probability
rocsnr Receiver operating characteristic curves by SNR
albersheim Required SNR using Albersheim's equation
shnidman Required SNR using Shnidman's equation
physconst Physical constants
radareqpow Peak power estimate from radar equation
radareqrng Maximum theoretical range estimate
radareqsnr SNR estimate from radar equation
radarvcd Vertical coverage diagram
blakechart Range-angle-height (Blake) chart


Radar Equation Calculator Estimate maximum range, peak power, and SNR of a radar system
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