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船用导航雷达接收机中频匹配滤波电路的设计
资料介绍
雷达的核心组件是接收机，接收机存在中频漂移严重，灵敏度不够以及近距离分辨率低等一系列问题。针对以上问题，本文展开以中频接收机匹配滤波电路为核心的技术研究，结合船用导航雷达脉冲调制的特点及雷达接收机对远近目标的不同要求，以巴特沃斯无源滤波电路为模型，设计3路不同带宽的中频匹配滤波电路。清晰准确的观察到远近距离的目标图像，改善雷达接收机的性能指标和中频漂移，提高接收机稳定度，达到雷达接收机中频匹配滤波的效果，实现完整的匹配接收体系，是对雷达接收机突破性的研究设计。
The core component of radar is the receiver. There are a series of problems such as serious intermediate frequency drift, low sensitivity, and low resolution at close range. In view of the above problems, the text expands the technology research focusing on IF receiver matched filter circuit, combined with marine navigation radar pulse modulation characteristics and the different requirements of the radar receiver on the near and far targets. The text models Butterworth passive filter circuit, design three-way different bandwidth IF matched filter circuit. So, we can observe the near and far targets clearly and accurately, improve the radar receiver performance indexes and the intermediate frequency drift, i...
部分文件列表
| 文件名 | 大小 |
| 船用导航雷达接收机中频匹配滤波电路的设计.pdf | 548K |
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