Estimating Doppler Shift for a Radio Wave

In summary, the conversation discusses estimating the Doppler shift for a radio wave reflected from an airplane moving towards the observer at a speed of 292 m/s. The problem provides a frequency of 9.7x10^6 Hz and the equation fo = fv/(v-vt) is used to calculate the shift, resulting in 1.9e5 Hz. However, this answer is deemed incorrect and the discussion leads to exploring different formulas and sources for better understanding. The complexity of reflecting from a moving reflector is also mentioned.
  • #1
Covenant32
15
0

Homework Statement



Estimate the Doppler shift for a radio wave reflected from an airplane moving directly toward you at a speed of 292 m/s. Assume the radio wave has a frequency of 9.7x10^6 Hz.

Homework Equations



fo = fv/(v − vt)


The Attempt at a Solution



Using the above equation I got 1.9e5 Hz. But, that is incorrect. Am I not using the correct equation?
 
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  • #3
Thanks, Delphi. In my textbook, doppler shift is covered 2 pages, and thus of little use.
 

1. What is Doppler Shift for a Radio Wave?

Doppler Shift for a Radio Wave is a phenomenon where the frequency of a radio wave changes depending on the relative motion between the source of the wave and the observer. This can result in a higher or lower frequency, which can be observed as a change in pitch or wavelength.

2. How is Doppler Shift for a Radio Wave estimated?

Doppler Shift for a Radio Wave can be estimated by measuring the change in frequency of the wave using specialized equipment, such as a Doppler radar or a spectrometer. The change in frequency can then be used to calculate the relative velocity between the source and observer.

3. What are some practical applications of estimating Doppler Shift for a Radio Wave?

Estimating Doppler Shift for a Radio Wave has many practical applications, such as in weather forecasting, where it is used to track the movement of storms and predict their path. It is also used in astronomy to study the motion of celestial bodies, and in radar technology for tracking the speed and direction of moving objects.

4. Can Doppler Shift for a Radio Wave be observed in all types of waves?

Yes, Doppler Shift for a Radio Wave can be observed in all types of waves, including sound waves, light waves, and radio waves. However, the effect is most noticeable in waves with high frequencies, such as radio waves.

5. What factors can affect the accuracy of estimating Doppler Shift for a Radio Wave?

Several factors can affect the accuracy of estimating Doppler Shift for a Radio Wave, including the distance between the source and observer, the speed of the source, and any interference from other objects or waves. Environmental factors such as atmospheric conditions can also impact the accuracy of the estimation.

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