无论对机动型雷达或固定基地式雷达而言，其接地和防雷系统是不可缺少的部分。由于数字电路和模拟电路采用的电源电压越来越低，系统的抗干扰和防护等级越来越高，因而接地和防雷系统的设计成为现代雷达设计中越来越重要的一个部分，成为保证雷达系统可靠安全工作的重要基础。该文就雷达的接地和防雷系统的设计进行了较全面的分析，并从工程实际出发分析了系统设计的方法。

Thunder defence and grounding system is indispensable part to mobile radars or fixed radars. Because the power voltage that the digital circuit and analogue circuit use is lower and lower, the anti-jamming and protection grade of the system is higher and higher, the design of the grounding and thunder defence system is becoming a more and more important part in modern radar design and the important basis to ensure the safe and reliable operation of radars. This paper gives an overall analysis on the design of the grounding and thunder defence system and analyzes in engineering the methods of the system design.

TN957