UAV image transmission system and image transmission method

By employing a balanced amplifier circuit in time-division duplex mode in the UAV image transmission system, and utilizing two parallel power amplifiers and a synthesizer, the problems of long-distance high-definition transmission and system reliability were solved, achieving efficient image transmission and enhanced security.

CN122092893APending Publication Date: 2026-05-26ARTOSYN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ARTOSYN
Filing Date
2026-04-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing drone image transmission systems present a contradiction between pursuing long-distance transmission and high-definition image quality, and the single-channel power amplifier is prone to damage, resulting in low system reliability and potential safety hazards.

Method used

The circuit employs a balanced amplifier circuit in time-division duplex mode, including two parallel power amplifiers and a power combiner. It improves linearity by superimposing signals in phase and switches between transmit and receive modes. Redundancy is achieved using RF switches and low-noise amplifiers.

Benefits of technology

While ensuring high-definition image quality, it increases transmission distance and enhances system reliability, avoiding image transmission interruptions caused by single-channel power amplifier failure, and providing flight safety assurance.

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Abstract

This invention provides an unmanned aerial vehicle (UAV) image transmission system and image transmission method. The system includes: a radio frequency (RF) transceiver, a balanced amplifier circuit, a low-noise amplifier, and an RF switch. The balanced amplifier circuit includes at least two parallel power amplifiers configured to superimpose the amplified signals from each power amplifier in phase to synthesize the output power. The RF transceiver generates a time-division duplex control signal to synchronously control the switching of each component between transmit and receive modes. By employing a balanced amplifier circuit, this invention enables each power amplifier to operate in a region with better linearity, thereby improving transmit power while ensuring the signal quality required for high-order modulation, thus balancing long-distance transmission and high-definition image quality.
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