Transmitter output power control method and device and transmitter

A technology of output power and control method, applied in transmission systems, electrical components, etc., can solve the problems of large fluctuation range, low power amplifier efficiency, high low temperature power, etc., and achieve the effect of good performance indicators, stable output power, and small power deviation.

Active Publication Date: 2019-12-31
深圳市兴恺科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The performance changes greatly under high and low temperature environment, the high temperature power is relatively small, the low temperature power is relatively large, and the fluctuation range is very large
[0005] 2. The video transmission equipment for drones and robots has low power amplifier efficiency,

Method used

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  • Transmitter output power control method and device and transmitter
  • Transmitter output power control method and device and transmitter
  • Transmitter output power control method and device and transmitter

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Embodiment Construction

[0058] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0059] Such as figure 1 and figure 2 As shown, as shown, in the first embodiment of a transmitter output power control method of the present invention, it includes: a table writing process and a table look-up process;

[0060] The table writing process includes:

[0061] S1A. Set the transmitter to output at the first output power at the first ambient temperature;

[0062] S2A. Adjust the first ambient temperature to a second ambient temperature according to a preset rule, obtain second output powers corresponding to the transmitters at the second ambient temperature, and obtain corresponding second actual operating temperatures;

[0063] S3A. Based on the first output power, group the second output power according to...

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Abstract

The invention relates to a transmitter power output control method and device and a transmitter. The method comprises a table writing process and a table look-up process. The table writing process comprises the following steps: setting a transmitter to output at first output power; adjusting the second environment temperature, and obtaining corresponding second output power and second actual working temperature; grouping the second output power according to a preset unit power offset by taking the first output power as a reference to obtain a working temperature range of each group; and obtaining a first power offset of each group and obtaining a corresponding second power offset, and generating a relation table according to the working temperature range and the second power offset. The table look-up process comprises the following steps: acquiring a working temperature; obtaining a corresponding working temperature range and a second power offset from the relation table according to the working temperature, and obtaining a corresponding gain compensation value according to the second power offset; and adjusting the link gain of the transmitter according to the gain compensation value. By implementing the invention, the stable output power of the transmitter at different environment temperatures can be ensured.

Description

technical field [0001] The present invention relates to the technical field of transmitter power control, and more specifically relates to a transmitter output power control method, device and transmitter. Background technique [0002] At present, COFDM (Coded Orthogonal Frequency Division Multiplexing) communication technology has been widely used in the field of wireless image transmission, and it is a very practical communication transmission technology. Based on multi-carrier technology, COFDM modulates the transmission data onto multiple mutually orthogonal sub-carriers and sends them simultaneously. It has the advantages of high spectral efficiency, high transmission rate, strong resistance to multipath effects and frequency selective drop. [0003] With the development of science and technology, the demand for image transmission in application fields such as drones and robots is increasing, and the requirements are also getting higher and higher. Although there are m...

Claims

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Application Information

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IPC IPC(8): H04B1/04
CPCH04B1/04
Inventor 蒋钦
Owner 深圳市兴恺科技有限公司
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