Analysis of K-distributed clutter parameters for various geographical features

✍ Scribed by Satoshi Kouya; Susumu Miwa

• Book ID: 101294764
• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 112 KB
• Volume: 82
• Category: Article
• ISSN: 8756-6621
• DOI: 10.1002/(sici)1520-6424(199902)82:2<57::aid-ecja7>3.0.co;2-t

✦ Synopsis

Weibull distribution and log normal distribution among others have been used to describe the amplitude distribution in clutter. The K-distribution, proposed more recently attracts attention because its parameters are able to explain the physical nature of clutter. The relationship between the K-distribution parameters and the nature of geographical features is clarified in this paper. Differences in experimental conditions and small amounts of non-object clutter in the geographical features influence the parameters. We show that this influence can be reduced by a limiter related to average electric power. We show that the distribution, obtained by pulse integration and unification processing, and using a limiter several times, conforms to a gamma distribution. In these experiments, this method, using the same radar, is applied to clutter from various geographical features to obtain the K-distribution parameter. The K-distribution parameter is used to compare the relation between various geographical features. Finally we show that the power distribution before pulse integration or the clutter voltage distribution conforms to a K-distribution with the same shape and scale parameter as the gamma distribution.