A near-field analysis is carried out to obtain the level of modulation interference due to rotating blades in a helicopter-borne pulse Doppler radar system. The interference power spectra are calculated for different values of antenna depression angle and helicopter (radar) speed at a constant helicopter altitude of 300 m. Numerical results for the case of 1 kW radiated power show that blade interference level is about 5 to 8 dBW/Hz less than that of the direct ground clutter in the clutter region. It extends, however, into the clutter-free region which may cause false alarms and degradation of the radar performance.
Near-Field Analysis of Helicopter Rotating Blades Modulation Interference
IEEE Transactions on Aerospace and Electronic Systems ; AES-15 , 1 ; 47-57
1979-01-01
1405451 byte
Article (Journal)
Electronic Resource
English
An Analysis of Helicopter Rotor Modulation Interference
IEEE | 1973
|Online Contents | 1994
MATERIAL ANALYSIS FOR HELICOPTER BLADES
TIBKAT | 2020
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