...
首页> 外文期刊>IEEE Transactions on Geoscience and Remote Sensing >Insect Biological Parameter Estimation Based on the Invariant Target Parameters of the Scattering Matrix
【24h】

Insect Biological Parameter Estimation Based on the Invariant Target Parameters of the Scattering Matrix

机译:基于散射矩阵不变目标参数的昆虫生物参数估计

获取原文
获取原文并翻译 | 示例
           

摘要

For radar observations, invariant target parameters extracted from the scattering matrix (SM) provide information about the target's geometry and composition. By studying the invariant target parameters of a small sample of insects, it is shown that the two eigenvalues and the determinant of the Graves power matrix are strongly correlated with insect body length and mass. Therefore, two methods are proposed to estimate the body length and mass from the eigenvalues or the determinant. The two eigenvalues identify the maximum of the insect polarization pattern and the perpendicular to the maximum direction, while the determinant is the product of these two values. A sample of 207 insect specimens measured at X-band in the laboratory rigs is used to determine the relationships between SM parameters and body lengths and masses. The results show that the length and mass can be estimated with a good performance and without an initial classification stage. In addition, the use of the determinant of the Graves power matrix is shown to provide an improved, SM-based, method of determining insect orientation and to solve the 90 degrees orientation-extraction error problem that arises at X-band with very large insects.
机译:对于雷达观测,从散射矩阵(SM)提取的不变目标参数可提供有关目标几何形状和成分的信息。通过研究小昆虫样本的不变目标参数,可以看出Graves幂矩阵的两个特征值和行列式与昆虫的体长和质量密切相关。因此,提出了两种方法来从特征值或行列式估计体长和体重。这两个特征值确定了昆虫极化图的最大值和垂直于最大方向的方向,而行列式是这两个值的乘积。在实验室装备的X波段测量的207个昆虫标本的样本用于确定SM参数与体长和质量之间的关系。结果表明,可以在没有初始分类阶段的情况下,以良好的性能估计长度和质量。此外,使用Graves幂矩阵的行列式可以提供一种改进的基于SM的确定昆虫方向的方法,并解决在昆虫非常大的X波段出现的90度方向提取误差问题。 。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号