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Space communication method, space communication device and space communication system

A space communication and space technology, applied in the field of space communication, to achieve the effect of increasing the receiving range, improving bandwidth utilization and channel capacity

Inactive Publication Date: 2015-12-09
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method, device and system for space communication to solve the technical problem of how to avoid the shortcomings of transmitting data in space in the infrared band in the above-mentioned prior art

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  • Space communication method, space communication device and space communication system
  • Space communication method, space communication device and space communication system
  • Space communication method, space communication device and space communication system

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Embodiment Construction

[0036] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0037] figure 1 It is a flow chart of a space communication method in an embodiment of the present invention.

[0038] S101 loads the signal to be sent on the ultraviolet laser beam and sends it to space;

[0039] Optionally, the S101 includes:

[0040] Perform dual-head pulse interval modulation (DH-PIM, dualheadei-pulseintervalmodulation) on the signal to be sent;

[0041] Load the DH-PIM signal on the ultraviolet laser beam and send it to space.

[0042] The number of time slots included in each DH-PIM signal is not fixed.

[0043] Let DH-PIM signal S k Consists of a...

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Abstract

The invention provides a space communication method, a space communication device and a space communication system, wherein the space communication method comprises the following steps: loading a signal to be sent on an ultraviolet laser beam and sending to a space; and restoring the signal to be sent from the ultraviolet laser beam after receiving the ultraviolet laser beam loaded with the signal to be sent from the space. According to the invention, the signal is transmitted in the space by adopting the ultraviolet laser beam; therefore, the data transmission rate up to over 10Gbps order can be provided; the broadband utilization rate and the channel capacity are also increased by adopting DH-PIM (Dual Header-Pulse Interval Modulation) modulation in the transmission process; the volumes of transmitting and receiving devices can be reduced by using the ultraviolet laser beam; because a receiver having high receiving sensitivity exists in an ultraviolet laser spectral area, the receiving range of ultraviolet laser can be increased; and thus, capture, alignment and tracking precisions of the ultraviolet laser can be reduced.

Description

technical field [0001] The present invention relates to the field of space communication, in particular to a method, device and system for space communication. Background technique [0002] Space communication, especially satellite communication, mainly adopts microwave (mainly infrared band) communication method. With the development and successful operation of space technology, especially orbital delivery and satellite communication technology, space communication has become an important part of modern communication network. [0003] At present, the space communication has the following deficiencies: [0004] Due to the longer wavelength of the infrared wave and the larger transceiver antenna, the volume and weight of the system in space communication are relatively large. [0005] Microwave-based space communication technology has the weakness of insufficient capacity, which cannot meet the growing demand for data capacity. [0006] Due to the long distance between the...

Claims

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Application Information

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IPC IPC(8): H04B10/524H04B10/60H04B10/50
Inventor 张云勇王志军汤雅妃李丹魏进武
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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