Velocity Aliasing Example Velocity Aliasing Example
Velocity Aliasing Example Velocity Aliasing Example
Velocity Aliasing Example Velocity Aliasing Example
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Phase Phase Variables<br />
φ DP (°), DP (°), K DP (° DP (° km km -1 -1 ), ), and and δ (°)<br />
(°)<br />
φ DP<br />
φ<br />
sys m<br />
DP<br />
= φDP<br />
+ φDP<br />
+ δ +<br />
ES<br />
■ φ DP is the measured two-way way differential propagational<br />
phase shift<br />
■ φ<br />
sys DP is the system, or initial (r(<br />
= 0), φ DP<br />
■ φ DPm is the φ DP owing to the propagation medium<br />
■ δ is the backscatter differential phase<br />
■ ES stands for Error Sources<br />
int 1 ∂φ<br />
K<br />
DP<br />
=<br />
– System noise<br />
2 ∂r<br />
– Nonuniform beamfilling<br />
– Sidelobe contamination<br />
– Statistical uncertainty of estimate<br />
4/3/01 8<br />
METR 3223: Weather Radar (aliasing, dual-pol., and dual-Doppler)<br />
m<br />
DP<br />
Measures amount and shape<br />
Good for R
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