摘要
从高频地波雷达的核心信号系统入手,对传统的模数混合型系统存在的问题进行了分析,提出了一种基于射频直接采样、采用数字化技术和软件无线电技术的雷达系统优化设计方案,并对该方案进行了分析、论述和实际验证。验证结果表明,全数字化高频地波雷达系统的灵敏度、线性动态范围和系统信噪比等重要性能指标均明显优于采用模数混合技术的高频地波雷达系统。
The existing problems in the traditional hybrid analog-digital signal processing system, the core Of the HF ground wave radar, are analyzed. An optimized design of the radar system adopting the digitization and software radio technologies and RF direct sampling is put forward, and then analyzed and verified. The results of verification show that some important performance indexes such as the sensitivity, the linear dynamic range, and the SNR of the fully digitized HF ground wave radar system are obviously superior to those of the traditional HF ground wave radar system.
出处
《雷达与对抗》
2008年第4期6-8,31,共4页
Radar & ECM
