Phase Coding for Range Ambiguity Mitigation in Dual-Polarized Doppler Weather Radars

Multi-PRI Signal Processing for the Terminal Doppler Weather Radar. Part II: Range–Velocity Ambiguity Mitigation

Multiple pulse-repetition interval (multi-PRI) transmission is part of an adaptive signal transmission and processing algorithm being developed to combat range–velocity (RV) ambiguity for the Terminal Doppler Weather Radar (TDWR). In Part I of this two-part paper, an adaptive clutter filtering procedure that yields low biases in the moments estimates was presented. In this part, algorithms for ...

Experimental Evaluation of SZ(8/64) Phase Coding with Censoring for Range-Velocity Ambiguity Mitigation

The Doppler Dilemma or range-velocity folding of echoes from uniformly spaced transmit pulse trains of weather radar poses a fundamental limit on radar data quality: there is a limited unambiguous range for echos and there is a maximum unambiguous velocity. The radar pulse repetition time may be adjusted to increase either the unambiguous range or the maximum unambiguous velocity but the other ...

Doppler Weather Radars and Wind Turbines

In many countries the number of wind turbines is growing rapidly as a response to the increasing demand for renewable energy. The cumulative capacity of wind turbines worldwide has shown a near 10-fold increase in the last decade (Global Wind Energy Council, 2011) and in the coming years many more wind turbines are expected to be built. Existing, older wind turbines are likely to be replaced by...

Wind turbines and Doppler weather radars

P4d Practical Aspects of Wideband Reception and Processing in Dual-polarized Weather Radars

In conventional radar systems the receiver bandwidth is designed to be similar to be bandwidth of the transmit pulse. For a given range sample estimates are averaged over time to improve the estimation accuracy. A number of methods have been proposed in the past for improving the quality of estimates without sacrificing range resolution (Mudukutore et al, 1998). Schemes using shorter pulsewidth...