Question

1. In your own words, explain how Doppler radar works. Describe the properties of electromagnetic waves and interactions that make Doppler radar possible

Answer 1

The reflected wave frequency is compared with a reference of the transmitted wave's frequency and a doppler frequency is developed. Due to the relative motion of the moving target a phase advance or lag is created (depending if the target is approaching or retreating) This continuous phase change results in a difference of frequency.