An adaptive moments estimation technique applied to MST radar echoes
An adaptive moments estimation technique applied to MST radar echoes
复制标题
应用于MST雷达回波的自适应矩估计技术
DOI：
10.1175/jtech1696.1
复制
发表时间：
2005
影响因子：
2.2
通讯作者：
C. Pan
中科院分区：
文献类型：
--
作者：
V. K. Anandan;P. Balamuralidhar;P. Rao;A. Jain;C. Pan
提出了一种自适应谱矩估计技术，用于分析中间层-平流层-对流层(MST)雷达信号的多普勒谱。这项技术在Gadanki(13.5°N，79°E)的MST雷达上实现，是基于某些标准，为多普勒窗口、信噪比(SNR)和风切变参数建立的，这些参数用于自适应地跟踪距离-多普勒频谱帧中的信号。分析了低信噪比和高信噪比两种情况下的雷达数据，并与传统的基于距离门最强峰值检测方法的结果进行了比较。结果表明，与常规方法相比，自适应方法可以显著提高高程复盖率。在低信噪比情况下，自适应方法和常规方法的高程覆盖分别约为22和11公里，而高信噪比情况下的相应高度分别为24和13公里。去验证...
Abstract An adaptive spectral moments estimation technique has been developed for analyzing the Doppler spectra of the mesosphere–stratosphere–troposphere (MST) radar signals. The technique, implemented with the MST radar at Gadanki (13.5°N, 79°E), is based on certain criteria, set up for the Doppler window, signal-to-noise ratio (SNR), and wind shear parameters, which are used to adaptively track the signal in the range–Doppler spectral frame. Two cases of radar data, one for low and the other for high SNR conditions, have been analyzed and the results are compared with those from the conventional method based on the strongest peak detection in each range gate. The results clearly demonstrate that by using the adaptive method the height coverage can be considerably enhanced compared to the conventional method. For the low SNR case, the height coverage for the adaptive and conventional methods is about 22 and 11 km, respectively; the corresponding heights for the high SNR case are 24 and 13 km. To validat...