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Multi-frequency outbound signal power amplification method and system of Beidou short message system

A technology of Beidou short message and power amplification, which is applied in the field of satellite communication signal processing to achieve the effect of strong operability, good flexibility and improved reliability

Pending Publication Date: 2021-11-19
NAT UNIV OF DEFENSE TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the present invention proposes a multi-frequency outbound signal power amplification method and system of the Beidou short message system, which can solve the problem of high-power signal generation of the outbound link of the Beidou short message system

Method used

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0033] refer to image 3 ,. A multi-frequency outbound signal power amplification system of the Beidou short message system, including N single-channel signal high-power amplif...

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Abstract

The invention discloses a multi-frequency outbound signal power amplification method and system of a Beidou short message system, and the system comprises a plurality of single-path signal high-power amplification units and a multi-frequency combiner, each single-path signal high-power amplification unit comprises a splitter, a main power amplifier, a standby power amplifier and a switcher, the multi-frequency combiner comprises a plurality of filters and a common node. The method comprises the following steps: dividing a low-power single-path signal into two paths of signals with consistent amplitudes and phases through a splitter; inputting the two paths of signals into two power amplifiers, wherein the two power amplifiers finish power amplification of the input signals respectively; and selecting the main path signal of the amplified signals to be output through the switcher, and after high-power amplification of the single path signal is completed, completing power synthesis of all the multi-frequency multi-path signals through the multi-frequency combiner. The method is high in reliability, good in flexibility and high in operability, and is suitable for a satellite communication measurement system needing high-power emission and a ground wireless communication system with wide area coverage.

Description

technical field [0001] The invention relates to the field of satellite communication signal processing, in particular to a multi-frequency outbound signal power amplification method and system of a Beidou short message system. Background technique [0002] The short message communication system is the feature and highlight of Beidou navigation system that is different from other satellite navigation systems. It can provide users with short message communication and position reporting services. Refer to Figure 4 The Beidou short-message satellite communication system is mainly composed of the space segment, the ground control center and the user segment. The space segment is composed of a satellite constellation containing several satellites. An outbound signal from a station and an inbound signal from a user machine. The ground control center completes user signal transmission and reception measurement and information transmission and reception processing, and manages and c...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/1851H04B7/18543H04B7/18569Y02D30/70
Inventor 王飞雪张可李井源孙广富欧钢黄新明周蓉赵雄
Owner NAT UNIV OF DEFENSE TECH
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