Abstract:

In partially homogeneous sea clutter environment, the instantaneous power of sea clutter fluctuates sharply, which affects the performance of the detecting target in sea clutter. In order to reduce the influence, a smooth factor is used to control the clutter power, and the smooth generalized likelihood ratio test (SGLRT) is proposed. The analytic expression of probability of false alarm is derived to verify the constant false alarm ratio with respect to the scale parameter of texture. Without an additional computational complexity, experimental results show that the SGLRT outperforms the GLRT in the partially homogeneous sea clutter environment.