摘要
高频地波雷达是一种理想的早期预警雷达,但是其检测性能受到电离层杂波的严重影响。从理论上分析了电离层对雷达信号的反射及多普勒展宽特性,利用实测数据对电离层杂波幅度的统计特性进行了研究,同时研究了电离层杂波的时间相关性和距离相关性,并从电离层的结构特性对其时间、距离相关性进行了分析,为抑制电离层杂波、优化高频地波雷达设计和改善低速目标检测方法提供了依据。
High frequency surface wave radar （HFSWR） is an ideal early-warning radar, but its detection performance is severely affected by the ionospheric clutter. Ionospheric reflection to radar signals and Doppler broadening is analyzed theoreti- cally in this paper. The statistical properties of the ionospheric clutter amplitude and power spectrum amplitude are researched based on the experimental data. The time and range correlation characteristics of ionospheric clutter are studied and ana- lyzed through the ionosphere configuration. It is useful in ionospheric suppression, HFSWR optimization design and low speed target detection.
出处
《电波科学学报》
EI
CSCD
北大核心
2011年第3期521-527,共7页
Chinese Journal of Radio Science
