Clutter removal strategies in meteorological radars using interferometric imaging

Clutter impacts many meteorological radars, particularly in Europe, where the problem arises variably whether due to anomalous propagation in coastal regions, or from elevated terrain features in hilly or mountainous regions. The inherent flexibility of signal processing techniques available with aperture synthesis offer potentially powerful strategies for countering clutter. The particular advantages are that both spatial and temporal coherence in the clutter may be exploited to discriminate between it and preciptation which has opposite characteristics. Because processing is done numerically post-sampling the spatial and temporal location of unwanted clutter depends fundamentally on the signal to noise ratio rather than the spatial resolution of imaging