雷达中韦布尔分布杂波的参数估计问题

Weibull clutter is used to simulate the sea clutter in which environment radar works. Weibull clutter has two parameters.One is scale parameter to present the men clutter power and the other is the shape parameter to present the distribution decline degree. Actually, the shape parameter cannot be known in advance. So, the parameter must be estimate real time, and in most instances, the threshold has relation to it. Then a good estimation method must be found to get a higher detection probability, when the false alarm rate can be kept constant. The paper discusses three different estimation which are based the reference window variables, and we compared their performance. Then the effect to detection is analyzed in the end of this paper.