Frequency

Phase of FMCW linear chirp

Phase of FMCW linear chirp
  1. What is chirp in radar?
  2. What is fast chirp modulation?
  3. What is beat frequency in Fmcw radar?
  4. How does FMCW radar work?

What is chirp in radar?

The chirp pulse compression process transforms a long duration frequency-coded pulse into a narrow pulse of greatly increased amplitude. It is a technique used in radar and sonar systems because it is a method whereby a narrow pulse with high peak power can be derived from a long duration pulse with low peak power.

What is fast chirp modulation?

The fast chirp modulation separates the range frequency shift (fr) and Doppler frequency shift (fv) in high frequency range and low frequency range. Compare to classic FMCW radar, it increases the range frequency shift while keeping Doppler frequency shift as same as before.

What is beat frequency in Fmcw radar?

Maximum Beat Frequency in FMCW Radar System

The waveform sweeps a 300 MHz band in 1 ms. Assume that the waveform can detect a stationary target as far as 18 km.

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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