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An ultra-short wave multi-mode over-the-horizon modem, method and communication device

A modem and over-the-horizon technology, applied in the field of communication, to achieve miniaturization, good application prospects, and light weight

Active Publication Date: 2021-02-26
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, China only stays under a single communication system. The communication distance of VHF stations is usually only tens of kilometers, and the meteor trail communication system generally covers a distance of about 600~2000km. Each communication method has certain limitations.
[0005] It can be seen that there is no platform in the prior art that can be compatible with multiple channel resources

Method used

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  • An ultra-short wave multi-mode over-the-horizon modem, method and communication device
  • An ultra-short wave multi-mode over-the-horizon modem, method and communication device
  • An ultra-short wave multi-mode over-the-horizon modem, method and communication device

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Embodiment Construction

[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0056] A kind of ultra-short wave multi-mode over-the-horizon modem, it comprises FPGA, and described FPGA is used for realizing link control module, modulator, pattern recognition module and demodulator, wherein:

[0057] The link control module is used to receive the business data sent from the outside, the channel identification information output by the pattern recognition module and the demodulation data output by the demodulator, and tap the opposite end business data and opposite end channel identification from the demodulation data information, perform link communication statistics based on business data and peer channel identification information, determine the channel mode based on channel identification information and link communication statistical information, then transmit the channel mode to the modulator and demodulator...

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Abstract

The invention discloses an ultra-short wave multi-mode over-the-horizon modem, method and communication equipment, belonging to the technical field of communication. The modem of the present invention includes FPGA, and FPGA is used to realize link control module, modulator, pattern recognition module and demodulator. The invention can make full use of multiple channel resources, compensate for the short-distance communication weak area of ​​meteor trail communication, and can be applied to 0-2000km multi-mode self-adaptive wireless communication systems.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an ultrashort wave multi-mode over-the-horizon modem, method and communication equipment, which can be applied to 0-2000km multi-mode self-adaptive wireless communication systems. Background technique [0002] Since the discovery of the radio propagation mechanism, due to the characteristics of rapid erection, surface coverage and relatively low cost of equipment for ultra-short wave frequency band communication equipment, wireless communication in this frequency band has become a research hotspot in both military and civilian fields. At the beginning of this century, foreign countries realized that using other propagation mechanisms on the meteor trail communication link, such as the Es layer and Tropo mode, etc., can achieve multi-dimensional expansion in terms of system operating frequency, transmission capacity, service type, and communication availability. For over-th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/00H04B17/336
CPCH04L27/0012H04B17/336
Inventor 李经安程翰林刘丽哲陈玮王小波于晓磊王昕羽任鹏
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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