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Experiment controls

Predefined scenario

Pulse family

Envelope scale σ0.60 ns

Carrier frequency4.00 GHz

Pulse amplitude0.80 V

Comparison basis

Pulse interval96 ns

Pulse count5

Pulse-position modulation

Record SNR12 dB

Primary pulse-train power / input complex noise power, averaged over 512 ns.

Echo amplitude ratio0.00 ×

Echo delay10.00 ns

Interferer amplitude0.00 V

Second pulse train

Acquisition model

Sample rate

Receiver bandwidth6.00 GHz

ADC resolution12 bits

ADC full scale1.5 ±V

Anti-alias filter

Window length

FFT length

Window function

Hop size

Effective FFT ≥ window length; hop ≤ half the window. Applied values appear beneath the spectrogram.

Detection threshold

Requested cell Pfa

Minimum spot area10 cells

Fragment joining gap3.00 ns

First-arrival search-back0 ns

Before each group’s strongest peak, look this far back for an earlier local maximum 12 dB above record noise. 0 disables.

Reject persistent tones

Tone rejection excludes frequency bins detected in more than 60% of frames before spot grouping.

EXPERIMENT 01 / 11

See time become bandwidth.

Compress the pulse. Watch its spectrum expand.

Computing the first received signal…