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A low-noise power amplifier for satellite navigation and time service and its application method

A power amplifier, satellite navigation technology, applied in the direction of power amplifiers, amplifiers with semiconductor devices/discharge tubes, amplifiers, etc., can solve the problems of low-noise power amplifiers that cannot be output independently, difficult to detect quickly, etc. The effect of detection efficiency

Active Publication Date: 2019-01-22
JIANGSU COMPASS NAVIGATION & COMM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is to provide a low-noise power amplifier for satellite navigation and time service and its use method, and solve the problem that the low-noise power amplifier in the prior art is difficult to quickly detect and accurately distinguish because it cannot output background noise alone Is there a problem with interfering signals?

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  • A low-noise power amplifier for satellite navigation and time service and its application method
  • A low-noise power amplifier for satellite navigation and time service and its application method
  • A low-noise power amplifier for satellite navigation and time service and its application method

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Embodiment Construction

[0021] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present invention. Terms used in the description of the present invention are only for the purpose of describing specific embodiments, and are not used to limit the present invention. The term "...

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Abstract

Provided are a low-noise power amplifier (20) used for satellite navigation and time service, and a method for use. A matching resistor (22), a single-pole, double-throw radio-frequency switch (23), a radio-frequency amplifier (25), and a microprocessor (24) are arranged on the low-noise power amplifier (20); the microprocessor (24) controls the single-pole, double-throw radio-frequency switch (23) to separately access the matching resistor (22) and an antenna input terminal (21), causing the low-noise power amplifier (20) to output background noise during different time periods, or an overall reception signal containing background noise, a satellite signal, and external interference, such that a receiver uses the change in difference between the background noise and the overall reception signal to recognize and determine in real time whether an interfering signal is present. Thus the measurement of the background noise power and the overall reception signal power is conducted independently and is not affected by ambient temperature; the invention improves measurement efficiency and is convenient to use.

Description

technical field [0001] The invention relates to a low-noise power amplifier, in particular to a low-noise power amplifier used for satellite navigation and time service and its application method. Background technique [0002] With the widespread application of GPS and "Beidou" satellite navigation and positioning and timing services in our country, industries that have an important impact on the national economy, such as communications, electric power, transportation, finance, etc., not only affect the accuracy of satellite navigation, positioning and timing services There are higher requirements, and its dependence is also greatly enhanced. Basic services and technical support are provided mainly or entirely through satellite navigation, positioning and timing services. Therefore, higher requirements are put forward for the security of satellite navigation, positioning and timing services. [0003] Since the satellite navigation receiving equipment (including positioning, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/30H03F1/56H03F1/26H03F3/195H03F3/21H03F3/24
CPCH03F1/30
Inventor 刘波
Owner JIANGSU COMPASS NAVIGATION & COMM TECH CO LTD