85. With reference to the integration time required by the radar to resolve two doppler shifts repa rated by (Afd)
86. The doppler shift produced by a radar operating at 1 GHz from a target, moving with a velocity that has a radial component only the radar axis of 100 m/s, would be
88. A ship sailing at a radial speed of 10 m/s towards on HF radar operating at 3 MHz would produce a doppler shift of
89. The beam width of a radar antenna is 0.1 radian in the azimuth direction and 0.05 radian in the elevation direction. The number of beam positions needed to fill the complete sphere would be
90. With reference to tracking radars, the problems of pulse to pulse variations in echo amplitudes
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