基于VPX总线的舰载相控阵雷达波控系统研究与实现

发布时间：2019-03-12 15:32

【摘要】：波束控制系统是相控阵雷达独有的,它代替了机械扫描雷达中的伺服系统。它的主要职能是在计算机的控制下,根据波束指向代码,算出每一个天线阵元上的移相器的移向码,然后将其传输、放大,送到每一个移相器,从而控制每一个阵元接收和发射的相位。因此波束控制系统的高效实时性对于相控阵雷达是非常重要的。随着舰载相控阵雷达阵元数目的急剧增长和任务多元化,对波控系统的数据传输能力和处理能力也有了更高的要求。现有基于并行总线的CPCI总线或VME总线信号处理架构将无法满足过高的数据传输要求和快速的运算处理能力,而采用新一代基于高速串行总线的VPX总线信号处理架构通过提高数据传输速率解决了该问题。文章首先进行了相控阵雷达天线原理的论述与仿真。然后是波束控制理论的研究与仿真,对于舰载相控阵雷达特有的电子稳定技术进行了研究与分析,并针对软件算法的运算特点进行了公式简化,使得波控计算机的程序设计得到了一定的简化。接着介绍了波控系统的特点、基本功能以及波控系统设计实现中的一些问题,并指出VPX系统架构使这些问题得到较好的解决。重点介绍了VPX架构及串行RapidIO总线协议在波控系统中的应用。最后是本文的重点：波控系统方案设计。本方案以分布式波控系统为原型,以软件计算法为基础,采用基于VPX平台的分布式架构,根据波控设计的原理并结合项目的性能要求,将波控系统划分成两大部分来实现,即主波束控制系统和子阵控制系统。详细描述了主波束控制系统实现、SRIO底层软件的开发以及应用软件的设计；同时阐述了子阵控制系统的任务,波控数据的运算与光纤分配等波控系统的核心内容。最终对波控系统进行测试,测试结果满足要求。
[Abstract]:Beam control system is unique to phased array radar, which replaces servo system in mechanical scanning radar. Its main function is under the control of the computer, according to the beam pointing code, calculate the shift code of the phase shifter on each antenna element, and then transmit it, amplify it, and send it to each phase shifter. Thus, the phase of receiving and transmitting of each element is controlled. Therefore, the efficient real-time performance of beam control system is very important for phased array radar. With the rapid growth of the number of elements in shipborne phased array radar and the diversification of tasks, the data transmission and processing ability of the wave control system is also required to be higher. The existing CPCI bus or VME bus signal processing architecture based on parallel bus will not meet the high data transmission requirements and fast computing and processing capabilities. A new generation of VPX bus signal processing architecture based on high-speed serial bus is adopted to solve this problem by increasing the data transmission rate. In this paper, the principle of phased array radar antenna is discussed and simulated. Then the research and simulation of beam control theory is carried out, and the electronic stability technology of shipborne phased array radar is studied and analyzed, and the formula is simplified according to the operation characteristic of software algorithm. The program design of the wave control computer is simplified to a certain extent. Then the characteristics and basic functions of the wave control system and some problems in the design and implementation of the wave control system are introduced. It is pointed out that the architecture of the VPX system makes these problems better solved. This paper mainly introduces the VPX architecture and the application of serial RapidIO bus protocol in the wave control system. Finally, it is the focus of this paper: the design of wave control system. This scheme is based on the distributed wave control system, based on the software calculation method, adopts the distributed architecture based on VPX platform, according to the principle of wave control design and the performance requirements of the project, divides the wave control system into two parts. That is, the main beam control system and the subarray control system. The realization of the main beam control system, the development of the SRIO bottom software and the design of the application software are described in detail, and the core contents of the wave control system, such as the task of the sub-array control system, the operation of the wave control data and the distribution of the optical fiber, are also described in detail. Finally, the wave control system is tested, and the test results meet the requirements.
【学位授予单位】：南京信息工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN958.92

【参考文献】