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A Multi-rate Modem Device Based on Burst Communication

A modem and burst communication technology, which is applied in the field of communication, can solve the problems of low burst channel transmission performance, low utilization rate of small signals, unreasonable structural design, etc., to resist channel fading, reduce average waiting time, and system throughput Improved effect

Active Publication Date: 2018-01-30
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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AI Technical Summary

Problems solved by technology

[0002] Meteor trail burst communication has the characteristics of random burst, rapid attenuation, and short and weak duration. The burst channel signal duration is mostly between 90ms and 1s. The structure design is unreasonable, the low-rate frame duration is 70ms, and because the transmission of the rate indication and the transmission of the data are transmitted separately, this leads to a long transmission time and low utilization of small signals, which leads to the transmission performance of the system in the burst channel reduce

Method used

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  • A Multi-rate Modem Device Based on Burst Communication
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  • A Multi-rate Modem Device Based on Burst Communication

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0018] refer to figure 1 , the present invention comprises a modulator 1, a demodulator 2 and a power supply 3, wherein the input port 1 of the modulator 1 receives external data, and its output port 2 outputs a modulated signal; the input port 1 of the demodulator 2 receives an external intermediate frequency signal, and its The output port 2 outputs the decoded demodulated data; the +V voltage terminal of the power supply 3 is respectively connected to the corresponding power supply port of each module circuit.

[0019] refer to figure 2 , the transmitting end modulator 1 of the present invention includes an encoding module 4, a rate frame header module 5, a baseband shaping module 6 and a mixing module 7, figure 2 It is the electrical schematic diagram of the transmitting end modulator 1 of the present invention, and the embodiment is a...

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Abstract

The invention discloses a multi-rate modem device based on burst communication, which relates to a burst communication system in the field of meteor trail communication, and can complete timing synchronization of received signals in a short time. It includes a modulator, a demodulator and a power supply; the present invention mainly completes the codec, modulation and demodulation of transmission information. The present invention proposes two innovations: multi-rate parallel demodulation technology and fast timing synchronization technology. Through the analysis of the above-mentioned innovations, it is proved that the device can work reliably in the meteor trail burst communication system. Through practical application, it is proved that this device has good practical effect.

Description

technical field [0001] The invention relates to a multi-rate modem device based on burst communication in the field of communication, and is particularly suitable for burst communication systems in the field of meteor trail communication. Background technique [0002] Meteor trail burst communication has the characteristics of random burst, rapid attenuation, and short and weak duration. The burst channel signal duration is mostly between 90ms and 1s. The structure design is unreasonable, the duration of the low-rate frame is 70ms, and because the transmission of the rate indication and the transmission of the data are transmitted separately, this leads to a long transmission time and low utilization of small signals, which leads to the transmission performance of the system in the burst channel reduce. Contents of the invention [0003] In order to meet the needs of the system, the modem mainly has the following innovations: multi-rate parallel demodulation technology an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 李经安陈强辉程翰林赵彦惠王伟高建忠王小波潘天杨陈君毅苏志王晓明
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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