A new Doppler spectral model for ground clutter was introduced on the basis of experimental measurements. The model is characterized by two parameters: the ratio between the dc and ac, r, and the spectrum width, β, which depend both on the wind conditions. The new ground clutter model has a relevant impact on the performance of moving target indicator (MTI) cancellation for ground based surveillance radar and on space-time adaptive processor (STAP) cancellation for airborne radar. For the MTI case, loss even in the order of 10÷18 dB may be experienced when the exponential clutter spectral shape is compared to the Gaussian shape. In the STAP case comparable losses are found in the windy conditions.
Impact of experimentally measured Doppler spectrum of ground clutter on MTI and STAP
Gini F.;Greco M. V.;
1997-01-01
Abstract
A new Doppler spectral model for ground clutter was introduced on the basis of experimental measurements. The model is characterized by two parameters: the ratio between the dc and ac, r, and the spectrum width, β, which depend both on the wind conditions. The new ground clutter model has a relevant impact on the performance of moving target indicator (MTI) cancellation for ground based surveillance radar and on space-time adaptive processor (STAP) cancellation for airborne radar. For the MTI case, loss even in the order of 10÷18 dB may be experienced when the exponential clutter spectral shape is compared to the Gaussian shape. In the STAP case comparable losses are found in the windy conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
