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Simulator for multi-channel meteor trail channel

A meteor trail and channel simulation technology, applied in the field of communication, can solve the problems such as difficult to realize channel random burst, inability to accurately control the attenuation rate and mode, etc., to shorten joint test and test work, improve research and development efficiency, and facilitate maintenance Effect

Active Publication Date: 2011-07-27
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Description
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AI Technical Summary

Problems solved by technology

During the development and testing of meteor trail communication equipment, the manually adjustable attenuator can roughly simulate the attenuation of the signal amplitude of a single channel, but cannot precisely control the attenuation rate and mode; It is also difficult for the device to realize the function of channel random burst

Method used

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  • Simulator for multi-channel meteor trail channel
  • Simulator for multi-channel meteor trail channel
  • Simulator for multi-channel meteor trail channel

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] refer to Figure 1 to Figure 2 , the present invention consists of first to fourth front-end matching attenuation units 1-1 to 1-4, first to sixteenth digitally controlled attenuators 4-1 to 4-16, first to second two-way output power distribution / combination 2-1 to 2-2, first to second eight-channel output power distribution / combiner 3-1 to 3-2, first to sixteenth back-end matching attenuation units 5-1 to 5-16, control Unit 6, interface unit 7, channel simulation unit 8, power supply 9 and other components. figure 1 It is an electric principle block diagram of the present invention, and the embodiment is according to figure 1Connect the lines. The function of the first to fourth front-end matching attenuation units 1-1 to 1-4 is to complete the matching function of the front-end radio frequency input and output signals. The function of the first and second two-way output power distribution / combiner 2-1, 2-2 is to make the front-end input and output port signals have...

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Abstract

The present invention discloses a multi-channel meteor trail channel simulator, and relates to the transmission environment simulation equipment of meteor trail burst communication channel in the field of communication. The channel simulator comprises a digital control attenuator, a power distribution / synthesis device, a channel simulation unit, a power supply and other components. When in use, the channel simulator is connected in the meteor trail communication channel in series, to simulate the characteristics of the actual meteor trail channel, which comprise the appearance of random burstand the signal intensity of exponential decay; and the channel simulator can be used for simulation testing of various technical indicators of the meteor trail communication channel. The channel simulator also has the advantages of high degree of integration, simple circuit, small size, convenient use, stable and reliable performance, and so on, and is in particular suitable for the meteor trail channel simulator on the occasions of the joint testing of the system, the transmission threshold testing of the equipment, the capacity testing of the network protocol, and so on in the meteor trail communication system network under the condition of the laboratory.

Description

technical field [0001] The invention relates to a multi-channel meteor trail channel simulator in the field of communication, and is especially suitable for the joint test of the meteor trail communication system network in the laboratory state, the equipment transmission threshold test, the network protocol capability test and other occasions. Meteor trail channel simulator device. Background technique [0002] Meteor trail burst communication is a radio communication method that utilizes the reflection or scattering of VHF radio waves by the ionization trail formed by meteors entering the atmosphere at high speed and burning. Meteor trails are divided into under-dense trails and over-dense trails according to their electron linear density. The reflection characteristics of these two types of trails to electromagnetic waves are also different, and the reflection signal of the under-dense trail reaches a peak value quickly, and then decays exponentially; The over-dense afte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00H04L12/26H04B17/391
Inventor 王伟赵彦惠张靖张永涛
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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