The Dfh Download Wave Listener Detection Analysis And Research

Wireless self-organizing frequency hopping network is a military communication network combined the advantage of frequency hopping and self-organizing network. Wireless self-organizing frequency hopping network uses hopping network as wireless communication channel and organizes network by self-organizing. The research of it is still at the starting stage. Now there are large amount of technological problems on the realization of distribute multi-hopping self-organizing network on the condition of hopping.Firstly, the research status of wireless self-organizing and hopping communication is introduced. As the basis of analyzing the characteristics and key technologies of them, we find that the first hop of fast frequency hopping carries few data and has short frequency gap, so it is difficult to achieve frequency hopping synchronization when building self-organizing network. As differential frequency hopping is asynchronous frequency hopping and its communication data is achieved by the relation of pre and post frequency points, which enables FH building-net , the technology of differential frequency hopping self-organizing network is discussed.The main research of this paper is carrier testing during organizing network of wireless self-organizing frequency hopping. This paper analyzes the channel first, by analyzing proposed a new way to receive frequency. This approach is based on the model-by-symbol receiver. According to the energy per hop received two of the largest energy frequency points: the main peak frequency and peak frequency vice, through two sets of frequency before and after meet the matching function to determine whether, if the meeting could become relevant, or is not relevant. By calculating the total probability to determine the relevance of whether the carrier channel, if the carrier is illustrated channel is occupied, otherwise that the channel is idle. The paper introduces self-organizing networks of wireless frequency hopping to download wave testing and simulation results obtained with the signal to noise ratio of the correlation of changes in probability and statistics. Wireless self-organizing frequency hopping network is feasible according the carrier. According to the simulation model, we obtained simulation results of carrier detection and the corresponding probability. The carrier situation can be determined by comparing the channel number and relevance of the carrier probability.