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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- Spring '08
- receiver, Satellite television, Robert H. Dicke, balanced Dicke radiometer