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A Free Space Frequency Signal Transmission System Based on Phase Compensation

A frequency signal, free space technology, applied in wireless communication, electrical components, synchronization devices, etc., can solve problems such as performance degradation and safety hazards in the entire network operation, achieve phase noise, realize frequency signal transmission and synchronization, and realize compensation. Effect

Active Publication Date: 2016-11-02
北京普测时空科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the GPS system is developed and controlled by the U.S. military, which can be set for local performance degradation and restricted use, which will bring security risks to the entire network operation under special circumstances

Method used

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  • A Free Space Frequency Signal Transmission System Based on Phase Compensation
  • A Free Space Frequency Signal Transmission System Based on Phase Compensation
  • A Free Space Frequency Signal Transmission System Based on Phase Compensation

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Embodiment Construction

[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0014] figure 1 A schematic structural diagram of the phase compensation-based free-space frequency transmission and synchronization system of the present invention is shown.

[0015] Such as figure 1 As shown, the free-space frequency transmission and synchronization system based on phase compensation of the present invention includes:

[0016] The transmitting station is used to provide the reference microwave frequency from the reference frequency source, and the transmitting compensation device transmits the uplink frequency signal through the transmitting antenna, receives the returned downlink frequency signal, and uses the reference microwave frequency and the received downlink frequency signal to actively compens...

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Abstract

The invention discloses a free-space frequency transmission and synchronization system based on phase compensation. The system includes: a transmitting station, which is used to provide a reference frequency signal from a reference frequency source, and a transmitting compensation device transmits an uplink frequency signal through a transmitting antenna, and receives and returns The downlink frequency signal, and use the reference frequency signal and the received downlink frequency signal to actively compensate the phase noise introduced by the frequency signal during free space transmission; the receiving station is used to receive the uplink with phase noise introduced by free space transmission through the receiving antenna Frequency signal, through the frequency conversion locking device, the phase of the servo frequency source is locked to the uplink frequency signal, and the downlink frequency signal that is phase locked to the uplink frequency signal is generated and sent back to the transmitting station for the transmitting station to actively compensate for phase noise, and finally the phase is obtained at the receiving station Lock to the frequency signal of the reference frequency source of the transmitting station.

Description

technical field [0001] The present invention relates to the field of microwave frequency signal transmission, in particular to a free-space microwave frequency signal transmission system based on phase compensation. Background technique [0002] At present, there are three main directions in the research and application of time-frequency systems. One is the preparation of the time frequency source, which is used to provide the time reference. The second is the transmission system of time and frequency. With a good reference source, it is necessary to accurately release the time and frequency. Therefore, the quality of the time-frequency transmission system directly determines the quality of the time-frequency signal received by the user end. The third is the reception of time-frequency signals, such as GPS receivers and the like. [0003] For the time-frequency transmission system, the currently commonly used methods for frequency signal transmission and synchronization m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00
Inventor 王力军王波苗菁白钰高超朱玺
Owner 北京普测时空科技有限公司
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