Self-adaptive frequency-selection communication method based on multi-frequency-hopping radio network in VHF frequency band

A communication method and self-adaptive technology, applied in electrical components, transmission systems, etc., can solve problems such as interference, destroy the orthogonality of subnet communication, and achieve the effect of solving mutual interference

Active Publication Date: 2017-02-15
GUANGZHOU HAIGE COMM GRP INC
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Problems solved by technology

However, in the case of large-scale networking, if a subnet no longer executes the original plan and temporarily adjusts the communication plan, the communication orthogonality of different subnets in the original plan will be destroyed, and the original planned communication will still be implemented for other surroundings. subnet interference

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  • Self-adaptive frequency-selection communication method based on multi-frequency-hopping radio network in VHF frequency band
  • Self-adaptive frequency-selection communication method based on multi-frequency-hopping radio network in VHF frequency band
  • Self-adaptive frequency-selection communication method based on multi-frequency-hopping radio network in VHF frequency band

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Embodiment

[0043] Such as figure 1 As shown, in this embodiment, the adaptive frequency selection communication method based on the multi-frequency hopping radio network on the VHF frequency band includes the following steps:

[0044] Without loss of generality, it is assumed that in a frequency plan, a frequency table with 256 frequency points is used by N subnets using the same time reference. Considering that the development of radio frequency technology of military communication equipment is relatively slow, resulting in a high proportion of energy leakage outside the signal bandwidth; and military equipment is required for long-distance communication, and the signal power is relatively large, so the signals between different subnets need to be relatively large. Large frequency interval protection, so the value of N cannot be too large, the typical value is 32. The adaptive frequency selection communication method of these N subnets is given below:

[0045]S1. Subsection division o...

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Abstract

The invention discloses a self-adaptive frequency-selection communication method based on a multi-frequency-hopping radio network in a VHF frequency band. The self-adaptive frequency-selection communication method comprises the following steps: in a one-time frequency plan, a frequency table including 256 frequency points is used by N subnets having the same time reference; the 256 frequency points are divided into A sub-segments; sub-segment division of the frequency table is carried out; and various subnets each generate a random number X satisfying uniform distribution in an interval [0, 255] through a random sender, and then perform linear circular deviation by taking 8 as the unit based on the subnet number n of various subnets, so that position numbers of frequency-hopping frequency points in the frequency table are generated. By means of the frequency-selection mechanism generation manner, the communication orthogonality between different subnets in any communication state still can be kept; therefore, the self-adaptive frequency-selection communication function is realized; and furthermore, mutual interference between different subnets can be avoided.

Description

technical field [0001] The invention relates to the field of frequency-hopping adaptive communication, in particular to an adaptive frequency-selection communication method based on a multi-frequency-hopping radio network on a VHF frequency band. Background technique [0002] The electromagnetic wave signal on the VHF frequency band (30MHz~88MHz) has good fading characteristics in the transmission process, and has become an important dedicated frequency band in the field of military tactical communication in various countries. There are a large number of tactical radio stations working in this frequency band, and basically all of them adopt the frequency hopping transmission mechanism. The frequency hopping table and frequency hopping rules have been strictly planned. [0003] In the context of military use, the frequency-hopping radio network often communicates on some terrain with a relatively complex electromagnetic environment. Difference. Once the frequency points wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/713H04B1/7156
CPCH04B1/713H04B1/7156
Inventor 谢映海索思亮刘勇
Owner GUANGZHOU HAIGE COMM GRP INC
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