复杂信号环境动态模拟软件设计与实现

发布时间：2018-04-10 13:44

本文选题：雷达 + 脉冲信号　；参考：《电子科技大学》2014年硕士论文

【摘要】：随着雷达技术的不断发展,当今战场上的信号环境,被多种参数和多种制式的雷达辐射信号相互交叉影响着,从而对位于战场内的雷达侦察设备也提出更高的性能要求。在新的雷达侦察设备研制过程中,为准确测试侦察设备的定位性能,需要为其提供一个较为真实的战场信号群环境作为实验基础。但是利用真实的辐射源设备来重构信号环境的做法,受到外界气候、实验场地和实验经费等多种因素的影响而变得不切实际。因此,开发一款能够应对这一难题的仿真软件来还原真实的战场信号群环境,具有重要的意义和价值。本课题基于复杂信号环境的动态仿真研究,设计并实现了“复杂信号环境的动态模拟软件”,为雷达侦察设备的研制,提供了强大的外场信号环境支持。本文的主要内容如下:1、首先,通过对比当前已有雷达信号环境仿真技术,分析它们的优缺点,选择合适本项目所需的理论和技术支持;再根据项目的需求分析,提出本软件的整体设计方案,数据仿真实现方案和雷达脉冲信号描述字生成方案等。2、其次,分析常见制式的雷达脉冲信号,建立多种制式的雷达脉冲信号数学模型;根据雷达辐射源所处的地理位置和接收器的移动轨迹,建立雷达与接收器在三维立体空间内的通信模型。3、然后,根据规划的软件设计方案及建立的数学模型,编程实现模拟软件的各个核心模块,实现模拟软件的数据仿真功能,通过仿真计算得到雷达基带数据,信号环境数据和相应的脉冲描述字。4、最后,搭建适合的测试平台,对仿真软件的性能和指标进行测试,验证软件的合理性,并对仿真结果进行验证,确认软件的正确性和数据的准确性。通过测试平台的测试验证,本项目中的复杂信号环境动态模拟软件,在时间间隔精度为0.1s、保证数据精度和完整性的情况下,精确仿真出二十部雷达脉冲信号相互叠加作用下信号环境数据,以及记录雷达脉冲信息的脉冲描述字。经过与其相对应的脉冲描述字进行对照验证,该数据满足项目各项指标要求。
[Abstract]:With the continuous development of radar technology, the signal environment in the battlefield is influenced by the intersection of various parameters and different radar radiation signals, so the radar reconnaissance equipment located in the battlefield has higher performance requirements.In the development of new radar reconnaissance equipment, in order to accurately test the location performance of reconnaissance equipment, it is necessary to provide a real battlefield signal group environment as the experimental basis.However, it is impractical to reconstruct the signal environment by using real emitter equipment, which is influenced by many factors, such as external climate, experimental site and experimental funds.Therefore, it is of great significance and value to develop a simulation software that can deal with this problem to restore the real battlefield signal group environment.Based on the research of dynamic simulation of complex signal environment, this paper designs and implements the "dynamic simulation software of complex signal environment", which provides a powerful external signal environment support for the development of radar reconnaissance equipment.The main contents of this paper are as follows: first, by comparing the existing radar signal environment simulation technology, analyzing their advantages and disadvantages, selecting the appropriate theoretical and technical support for this project, then according to the needs of the project analysis,The whole design scheme of the software, the realization scheme of data simulation and the scheme of generating radar pulse signal description word are put forward. Secondly, the common radar pulse signal is analyzed, and the mathematical model of radar pulse signal is established.According to the location of the radar emitter and the moving track of the receiver, the communication model .3between the radar and the receiver in three-dimensional space is established. Then, according to the software design scheme and the mathematical model,Through the test and verification of the test platform, the dynamic simulation software of complex signal environment in this project can guarantee the data accuracy and integrity under the condition that the precision of time interval is 0.1 s.Twenty radar pulse signals are simulated accurately under the superposition of the signal environment data and the pulse description words to record the radar pulse information.The corresponding pulse description word is compared and verified, and the data meet the requirements of each item.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN957.51

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