基于软件无线电的通信卫星柔性测试技术

Flexible Testing Technology of Communication Satellites Based on Software-defined Radio

针对通信卫星有效载荷地面测试系统专用化程度高、人员操作性差、软件兼容性低、迭代更新成本高的问题,文章提出一种基于软件无线电的卫星柔性测试技术,发挥软件无线电支持高级语言编程和灵活程度高的特点,将不同通信卫星有效载荷体制以软件自定义实现的方式统型到通用的硬件平台,设计可用于各型通信卫星有效载荷测试的通用化地面测试设备,实现卫星有效载荷测试技术经济一体化。经在卫星移动通信载荷和航空监视载荷中实际测试验证,结果表明:基于软件无线电的卫星柔性测试设备满足通信卫星有效载荷的测试需求,可为软件无线电技术在卫星测试领域的探索和应用提供参考。

In response to the problems of high degree of specialization,poor operability,low software compatibility,and high iteration and update cost in the ground payload testing system for the communication satellites,this paper proposes satellite flexible testing technology based on software defined radio.By leveraging the characteristics of software defined radio’s support for high-level language programming and high flexibility,different communication satellites payload testing systems are unified into a common hardware platform in a software-customized manner,and general test equipment is designed to realize technical and economic integration of satellite payload testing.It has been tested and verified in actual satellite mobile communication payload and aviation surveillance payload.The testing equipment based on software defined radio meets the testing needs of communication satellites payloads and can provide reference for exploration and application of software defined radio technology in the field of satellite testing.