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Doppler Correction for Surface Movement

Published online by Cambridge University Press:  18 January 2010

D. F. H. Grocott
D. F. H. Grocott
Affiliation:
(R.A.F. College of Air Warfare)
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Extract

If a radar transmitter and receiver are mounted together in the nose of an aircraft and flown at speed V over flat ground towards a vertical reflector (Fig. 1), then the received signal at the reflector differs in frequency from the transmitted signal by + V/λ (the doppler frequency), where λ is the wavelength of the transmitter. The reflected signal back to the aircraft undergoes a further increase of frequency + V/λ, thus the received signal at the aircraft differs from the transmitted frequency by + 2V/λ. This difference in frequency, referred to as the doppler shift, is proportional to the speed of the aircraft.

Information

Type
Research Article
Information
The Journal of Navigation , Volume 16 , Issue 1 , January 1963 , pp. 57 - 63
Copyright
Copyright © The Royal Institute of Navigation 1963

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References

REFERENCES

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