Anatomy of a radar digital twin

From PRBS to range-Doppler: the blocks that make up an end-to-end pulsed-radar receiver.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. A radar digital twin is just a signal chain with a longer tail: waveform generation, a channel that delays and attenuates, and a receiver that pulls targets back out of the noise.

The transmit side

Maecenas sed diam eget risus varius blandit sit amet non magna. Cras justo odio, dapibus ac facilisis in, egestas eget quam. A linear-FM chirp gives you range resolution; pulse-to-pulse coherence gives you Doppler.

The receive side

Donec sed odio dui. Etiam porta sem malesuada magna mollis euismod. After the matched filter and a two-dimensional FFT, targets fall out as peaks on the range-Doppler map.

  1. Mix to baseband.
  2. Matched-filter each pulse.
  3. FFT across pulses for Doppler.
  4. CFAR to threshold against the noise floor.

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