数据链测试仿真评估中的信道与链路干扰仿真技术

摘要

The channel and link interference simulation is one of the key technologies for the data link test simulation and evaluation system. In order to simulate the non-ideal character of the real opera-tion wireless enviroment for the data link system in local area network, the channel condition and interfer-ence characteristic of the typical application enviroment needs to be analyzed and modelled, and the data link system performance under different enviromental conditons needs to be simulated and verified. This paper first analyzes the related principle and mechanism of the several kind of common channel and link interference simulation tools, then it sudies and proposes the methods and schemes of the transmission de-lay, channel and link interference and link-level simulation. Besides, several key problems are also an-lyzed and the solutions are proposed. The validation effect of the proposed methods in the data link test simulation and evaluation system is good, which is able to provide the wireless channel and link interfer-ence simulation tools for the reliability and stability of the data link system, thus providing the reference and basis for the design of the data link system.%信道和链路干扰仿真是数据链测试仿真评估系统的关键技术之一。在局域网下模拟数据链系统真实运行的无线环境的非理想特性，需要对典型应用环境的信道条件、干扰特征进行分析和建模，仿真验证数据链系统在不同环境条件下的性能。本文首先分析了几类常见的信道和链路干扰仿真工具相关模块的原理和机制，研究并提出了传输时延、信道与链路干扰、链路级仿真方法及方案，并对几个关键问题进行了分析并提出解决方案。该研究在数据链测试仿真评估系统中的验证效果良好，能够为数据链系统可靠性、稳定性提供无线信道和链路干扰模拟工具，从而为数据链系统的设计提供参考和依据。