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| 雷达恒虚警检测系统仿真 | |
| 引用本文： | 张麟兮,许家栋,李萍,王少波. 雷达恒虚警检测系统仿真[J]. 计算机仿真, 2007, 24(4): 293-296 |
| 作者姓名： | 张麟兮 许家栋 李萍 王少波 |
| 作者单位： | 1. 西北工业大学无人机特种技术国防重点实验室,陕西,西安,710072 2. 西北工业大学电子工程学院,陕西,西安,710072 3. 西北工业大学无人机特种技术国防重点实验室,陕西,西安,710072;西北工业大学电子工程学院,陕西,西安,710072 4. 69296部队,新疆,喀什,844200 |
| 摘 要： | 恒虚警(CFAR)处理技术对常采用机载下视或类似工作条件的PD雷达进行目标检测非常重要,文章首先对恒虚警检测原理进行论述,重点讨论单元平均CA-CFAR,最大选择GO(greatest of)-CFAR和最小选择SO(smallest of)-CFAR这三种均值类恒虚警处理方法,建立其数学模型.接下来对接收机噪声信号进行模拟,同时建立目标信号模型,并将所产生的噪声信号与目标信号相叠加仿真雷达系统的接收信号,注入所建立的恒虚警模型中进行检测仿真,给出仿真结果的分析,试验证明了仿真系统的有效性. |
| 关 键 词： | 恒虚警处理 单元平均 最大选择 最小选择 噪声模拟 目标模拟 雷达恒虚警检测 系统仿真 System Simulation 有效性 仿真系统 验证 分析 仿真结果 信号模型 注入 接收信号 雷达系统 叠加 目标信号 模拟 噪声信号 接收机 数学模型 处理方法 均值 |
| 文章编号： | 1006-9348(2007)04-0293-04 |
| 修稿时间： | 2006-03-14 |
CFAR System Simulation |
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| ZHANG Lin-xi,XU Jia-dong,LI Ping,WANG Shao-bo. CFAR System Simulation[J]. Computer Simulation, 2007, 24(4): 293-296 | |
| Authors: | ZHANG Lin-xi XU Jia-dong LI Ping WANG Shao-bo |
| Abstract: | The constant false alarm rate (CFAR) processor is useful for detecting radar targets in a background where all parameters of the statistical distribution of the clutter are not known and may be not stationary. Three common mean-level CFAR techniques called cell averaging (CA), greatest of the selection logic (GO) and smallest of the selection logic (SO) are discussed in the article, and their mathematical models are established at first. Secondly, the usual noise existing in a radar receiver that is mostly of thermal origin is simulated, and the target signal is generated at the same time. And then the noise and target signal are added together to simulate the input information of the CFAR processor, and the measurement experiment is carried out. Finally, the simulated result is shown and analyzed, and it verified the validity of the CFAR system model. |
| Keywords: | Constant false alarm rate (CFAR) processor Cell averaging Greatest of the selection logic Smallest of the selection logic Noise simulation Target signal simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
