JTIDS系统抗干扰体制研究

Research of JTIDS Anti-Jamming Mechanism

介绍了三军联合战术信息分发系统 (JTIDS)的链路层结构以及它的三个抗干扰措施 :直扩 ,跳频 ,纠错编码 ;研究了针对系统抗干扰体制的建模和仿真方法 ,并在SPW仿真平台上加以实现 ;基于这种模型 ,对系统抗干扰体制中的纠错译码方法 ,跳频图案设计等关键问题进行研究 ,评估了JTIDS系统的抗干扰能力。

Firstly, this paper introduces the data link layer structure of joint tactical information distribution system (JTIDS) and its three anti-jamming methods, namely direct sequence, frequency hopped spread spectrum and channel coding. In order to have a research on the anti-jamming mechanisms of JTIDS, we address the basic concepts and approaches for modeling and simulating. Then a practical model is built by using of the simulation tool SPW. Base on the model, we discuss the anti-jamming mechanism of the system, especially some key technical items such as decoding arithmetic, frequency-hopping pattern. In the end, we give the evaluation of anti-jamming ability of JTIDS.