沉积静电放电产生的高频电磁辐射会对机载电子设备尤其是高频通信系统设备产生干扰。在沉积静电环境下的机载高频通信系统科目试飞在国内民机试飞领域尚属首例,也无相关经验方法可以参考。该文通过研究咨询通告AC25-7推荐的试飞气象条件(高卷云、干燥的雪、沙尘暴),详细叙述了高频沉积静电试飞科目的背景和沉积静电的原理,介绍了高卷云气象的定义、产生和类型,结合了机载气象雷达的显示条件和地面气象台站预报的天气情况,以我国民机试飞现有条件和实际情况为出发点,摸索总结出一套符合要求而又切实可行的试飞方法,为未来民机试飞实践提供具体指导。 Electromagnetic discharge deposited by high-frequency electromagnetic radiation on airborne electronic equipment, especially high-frequency communication system equipment interference. Airborne high-frequency communication system subject to electrostatic deposition in the test subjects flying in the field of civil aircraft test is the first case, there is no relevant experience and methods can refer to. In this paper, the background of the high-frequency sedimentary electrostatic test subjects and the principle of sedimentary static electricity are described in detail through the study of the meteorological conditions (high cirrus, dry snow and sandstorm) of test flight AC25-7. The high-volume meteorological Definition, generation and type of airborne weather radar combined with the display conditions of airborne weather radar and weather conditions forecast by ground meteorological stations. Based on the current conditions and actual conditions of civil aircraft test flight in China, this paper explores and sums up a set of feasible and feasible Flight test method for the future civil flight test to provide specific guidance.