A Synchronous Frequency Hopping Orthogonal Networking Method Based on Beidou Time Service

Abstract

The invention discloses a synchronous frequency hopping orthogonal networking method based on Beidou timing service. For a communication system including N subnets, each subnet is composed of a master and a slave. The orthogonal networking method includes : S1. each subnet is numbered and set, and the number is 0~N-1; S2. for the master and slave of each subnet, the TDMA superframe structure is used to allocate network time slots, so that the master and slave of each subnet The machine occupies different time slots respectively, and in each time slot, the master machine and the slave machine are at f 0 ~ f K‑1 Synchronous frequency hopping within these K frequency points; S3. In any communication time slot, the master and slave of each subnet determine the frequency hopping pattern of K frequency points of the cluster according to the Beidou timing information, and according to the equipment number of each subnet The frequency hopping pattern encoding is performed to make the frequency hopping patterns of N subnets orthogonal at the same time. The present invention can make the frequency hopping patterns of each subnetwork orthogonal at the same time based on the Beidou timing service, and the frequency hopping frequencies of each subnetwork do not collide at the same time, and do not cause mutual interference between networks.

Description

technical field [0001] The invention relates to networking communication, in particular to a synchronous frequency hopping orthogonal networking method based on Beidou timing service. Background technique [0002] Frequency hopping communication is the most widely used and most effective technology in shortwave communication anti-jamming technology. The use of frequency hopping multiple access communication network greatly improves the anti-intercept ability and anti-interference ability of frequency hopping signals, which can well guarantee the security of transmitted information. And because the frequency hopping multiple access communication network has the advantages of strong anti-interference ability, low intercept probability, low detection probability, etc., it has a good inhibitory effect on frequency selective fading. When frequency hopping communication is used for networking, all devices with the same frequency hopping pattern are grouped in the same network. It...

AI Technical Summary

Problems solved by technology

When frequency hopping communication is used for networking, all devices with the same frequency hopping pattern are grouped in the same network, and it is required that the frequency hopping frequencies of each set of devices in the network do not collide at the same time, otherwise it will cause conflicts between networks Mutual interference, thereby affecting the communication data transmission between devices

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