Radar

Radar coherent processing interval

Radar coherent processing interval
  1. What is coherent processing interval in radar?
  2. What is coherent processing?
  3. What is PRI and PRF?
  4. How does FMCW radar work?

What is coherent processing interval in radar?

5.6. As seen, the beat signal is sampled at the rate of the low-end ADC (sampling frequency fs) during a long period of time (say some seconds). For a coherent radar, the total time to be sampled is referred to as the coherent processing interval (CPI).

What is coherent processing?

In signal processing, the coherence is a statistic that can be used to examine the relation between two signals or data sets. It is commonly used to estimate the power transfer between input and output of a linear system.

What is PRI and PRF?

PRI is the time interval between two adjacent pulses. PRF is the rate that pulses repeat per second and is equal to the inverse of PRI.

How does FMCW radar work?

A Frequency Modulated Continuous Wave Radar or FMCW Radar system is a special type of radar system that measures both distance and velocity of moving objects. This is achieved by continuously varying the frequency of the transmitted signal by a modulating signal at a known rate over a fixed time period.

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