卫星通信设备抗直升机旋翼遮挡技术测试验证方法研究

抗旋翼遮挡技术是直升机载卫星通信设备的核心技术.根据直升机载卫星通信系统旋翼遮挡的特点,分析研究了直升机无遮挡通信时间比率与直升机航向和卫星波束入射角的关系,以此分析设计了试飞方案.发现了抗旋翼遮挡技术的重大设计缺陷,并通过试飞中的测试数据对抗旋翼遮挡算法进行了优化改进,有效实现了抗旋翼遮挡技术的有效性验证,达到直升机载卫星通信设备定型试飞的目的,为后续该类型设备的试飞奠定了扎实的理论与实践基础,具有较高的工程应用价值.

Study of the Flight Test Technology for the Satellite Communications Equipment against the Blocking Technology Resisting the Helicopter Rotor

The technology against the helicopter rotor blocking is critical to the satellite communication equip-ment.According to the characteristics of the rotor blocking in the helicopter with the satellite communication system,the re-lationship between the communication times ratio without blocking and the beam incident angle as well as the helicopter heading angle is analyzed,which is the base of the design for the flight test program.The significant design flaws of the rotor resistance barrier technology are discovered,the rotor blocking algorithm is optimized through the test data in the flight,the rotor resistance barrier technology is validated effectively.The validation of the helicopter satellite communications equipment is realized successfully.It lays a heavy foundation of the theory and the practice for the subsequent flight test of the similar systems,and has the huge value for the engineering application.