Key Anti-Jamming Technologies and Their Performance Comparison in Frequency Hopping Communication System

Yuan Yuan
2016 Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology   unpublished
Wireless communications have been applied to every aspect of our life with the development of modern communication technologies, which makes the problem of interference more critical. Especially for the frequency hopping (FH) systems, the application scenario of them is very complicated. Developing anti-jamming technologies of FH systems is a valuable research subject. In this thesis, we carry out theoretical analysis and simulation study on jamming performance of frequency hopping
more » ... opping communication system, and then we take FH/BFSK system as an example, and give a theoretical analysis of the error rate in the five typical communication interference patterns. Introduction The basic characteristic of frequency hopping communication is to change the signal frequency, so as to evade enemy detection or interference, so hopping technology is essentially a reconnaissance interference avoidance technique. The avoidance ability is mainly reflected in the frequency hopping speed and the frequency hopping width. The faster is frequency hopping speed, the wider is frequency hopping width, the system anti jamming performance will be better. However, both of them can't be improved without limits. Currently, most of HF frequency hopping radios adopt sub-band hopping. Therefore, there are still shortcomings and limitations on hopping communication system in terms of anti-jamming performance. In this context, we carry out theoretical analysis and simulation study on jamming performance of frequency hopping communication system. We analyze the influence of the typical communication jamming on the frequency hopping communication system, including full band jamming, partial band jamming, single-frequency jamming, multi-frequency interference and tracking jamming. Then we take FH/BFSK system as an example, and give a theoretical analysis of the error rate in the five typical communication interference patterns. Frequency Hopping Communication System Jamming Performance Simulation Model Combined with simulation model of frequency hopping systems and theoretical analysis of jamming technologies, by adding jamming module and bit error rate (BER) statistics module, we design the frequency hopping communication system jamming performance analysis schematic diagram, as shown in Figure 1 :
doi:10.2991/icmmct-16.2016.67 fatcat:722ujaprovgcpp7d4velrclgya