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Instruction image wireless transmission system and method of frequency division multiple access and time division multiple access mixed system

A time-division multiple access and frequency-division multiple access technology, applied in radio transmission systems, transmission systems, electrical components, etc., can solve the problems of difficult collaborative control, high system cost, and large size, reducing complexity and system. Cost and power consumption, the effect of increasing real-time

Active Publication Date: 2019-04-12
西安思丹德信息技术有限公司
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Problems solved by technology

[0003] At present, the general data and image wireless transmission system on the market adopts time division multiple access to transmit command data and image data, which can only realize single-channel data and image transmission, and multiple sets of equipment are required for wireless transmission of multiple target images at the same time Working together, the system cost is expensive, the volume is large, the power consumption is large, and the cooperative control is difficult

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  • Instruction image wireless transmission system and method of frequency division multiple access and time division multiple access mixed system
  • Instruction image wireless transmission system and method of frequency division multiple access and time division multiple access mixed system
  • Instruction image wireless transmission system and method of frequency division multiple access and time division multiple access mixed system

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0030] Uplink communication adopts time division multiple access method to transmit control commands with small data volume; when downlink transmits image data with large data volume, if time division multiple access mode is also used, the data transmission rate is too high, and the demand for system gain is too large, increasing The complexity of the equipment is reduced, and the cost performance is low. Therefore, in the present invention, the respective advantages of time division multiple access and frequency division multiple access are comprehensively utilized, and an asymmetric system is adopted, that is, the uplink adopts the time division multiple access system, and the downlink adopts the frequency division multiple access system, thereby realizing the parallel transmission of multi-...

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Abstract

The invention provides an instruction image wireless transmission system and method of a frequency division multiple access and time division multiple access mixed system. Instruction data is transmitted through adoption of a time division multiple access system at an uplink, and image data is transmitted through adoption of a frequency division multiple access system at a downlink. An uplink signal processing module processes the instruction data to form a way of uplink transmitting signals. The uplink transmitting signals are sent to a downlink signal processing module through a transmittingchannel of an uplink radio frequency module and a receiving channel of a downlink radio frequency module in turn. The downlink signal processing module processes a plurality of ways of image data toform a plurality of ways of downlink transmitting signals. The downlink transmitting signals are sent to the uplink signal processing module through the transmitting channel of the downlink radio frequency module and the receiving channel of the uplink radio frequency module in turn. According to the system and the method, an asymmetric system is employed, namely, the time division multiple accesssystem is employed at the uplink, and the frequency division multiple access system is employed at the downlink, so parallel transmission of a plurality of ways of instruction data and image data isrealized.

Description

technical field [0001] The invention relates to wireless communication transmission of data and images, in particular to a command image wireless transmission system and method of a frequency division multiple access and time division multiple access hybrid system. Background technique [0002] At present, the command image wireless transmission system is used for data and image wireless information transmission during the flight of missiles or UAVs. [0003] At present, the general data and image wireless transmission system on the market adopts time division multiple access to transmit command data and image data, which can only realize single-channel data and image transmission, and multiple sets of equipment are required for wireless transmission of multiple target images at the same time Working together, the system cost is expensive, the volume is large, the power consumption is large, and the cooperative control is difficult. Contents of the invention [0004] Aimi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18506H04B7/18515
Inventor 程鹏李庆付雷徐伟潘望王晨
Owner 西安思丹德信息技术有限公司
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