Resource-saving laser radio frequency integrated communication method

Abstract

The invention provides a resource-saving laser radio frequency integrated communication method, and the method comprises the following steps: correspondingly processing a received signal, namely processing a received radio frequency beam into a data signal and a coarse tracking control signal, processing a received laser beam into a data signal, a coarse tracking control signal and a fine trackingcontrol signal, processing the satellite signal into a radio frequency beam or a laser beam, and sending the processed data signal, radio frequency beam and laser beam. In order to solve the problemsof integration of a laser radio frequency antenna, integration of a tracking system and integration of a signal processing system, the invention provides a resource-saving laser radio frequency integrated communication method, which can simultaneously realize two communication functions of laser and radio frequency, and radio frequency communication and laser communication are mutually backed up,so that the communication efficiency is improved. The reliability and the availability of the communication link are effectively improved, the efficiency of the communication link is more effectivelyexerted, and the reliability of the space communication link is improved.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a resource-saving laser radio frequency integrated communication method. Background technique [0002] With the continuous expansion and deepening of my country's lunar and deep space exploration activities, most of the frequency bands currently used for space-ground communication and information transmission belong to the radio frequency band. support services. At present, it is imperative to develop laser communication research in space communication. In order to solve the problems of high-speed communication in deep space, the main way is to increase the carrier frequency to the Ka frequency band and use laser links. At the same time, for satellite and deep space exploration applications with limited weight, volume and power consumption, strict requirements are put forward for the weight, volume and power consumption of the payload. In order to effectively reduce the siz...

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Problems solved by technology

[0004] Prior art 1, the Chinese patent with the publication number CN103762998B introduces a large field of view common antenna hybrid radio frequency and laser wireless communication device, which realizes hybrid communication through the radio frequency laser common antenna, but the modulation and demodulation of radio frequency signals and optical signals The tuning module is discrete, the integration of communication components is low, and the capture and tracking with beacon light is used, the complexity of the tracking system is high; the second prior art, the Chinese patent with publication number CN103873151B introduces a compatible radio frequency, The spaceborne integrated communication system of laser and quantum communication provides a spaceborne communication integrated system that can realize radio frequency, laser and quantum communication functions at the same time, but its system integration level is not high, and there is no integrated design of radio frequency antenna and optical antenna. The size, weight and power consumption are relatively large; the third existing technology, the Chinese patent with the publication number CN107317593B, introduces a dual-link communication receiving system. By integrating the radio frequency link and laser link receiving system, the radio frequency and laser signal can be realized However, the radio frequency receiving antenna and the laser receiving antenna of the system adopt a discrete structure, the signal processing unit has a low degree of integration, and there is no transmission link, so two-way communication cannot be realized; prior art 4, introduction of Chinese patent with publication number CN107682044B A laser and radio frequency hybrid transmission system is proposed, which can realize the hybrid communication of laser and radio frequency, but the radio frequency antenna and optical antenna of the system are also independent of each other, and the system integration level is not high, which is not conducive to spaceborne and deep space communication applications; Existing technology five, the Chinese patent with the publication number CN110233665A introduces a radio frequency / laser cooperative fast capture tracking alignment method, which can realize rapid high-probability capture tracking alignment beams in the long-distance full airspace, but this method only realizes radio frequency / Laser hybrid capture and tracking, unable to achieve RF / laser hybrid communication

[0005] Although the above five technologies have realized laser radio frequency integrated communication, they have not completely solved the problems of laser radio frequency antenna integration, tracking system integration and signal processing system integration, and there are still volume, weight and power consumption of communication loads. bigger problem

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