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hw10_s09 - τ is chosen to be equal to 0.1 of the dwell...

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ABE 4034 H W 10 Du e Dat e Thur s day 4 / 2 / 09 1 . A 1-GHz balanced Dicke radiometer with a 100-MHz bandwidth is to be flown on a satellite at an altitude of 600 km and with an average speed of 7.5 km/sec. The radiometer uses a 10 m-diameter antenna, and the receiver is characterized by T N = 1000K and T A = 300K. The radiometer integration time (
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Unformatted text preview: τ) is chosen to be equal to 0.1 of the dwell time (τ d , defined as the length of time it looks at the footprint on the ground) of the antenna beam for a point on the ground. If the antenna is fixed so that its main beam is always pointed in the nadir direction (θ = 0˚), what will the ΔT be?...
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