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Radio-frequency optical transport module based on TD mode and synchronous control method

A technology of synchronous control and transmission module, applied in the direction of optical fiber transmission, transmission system, electromagnetic wave transmission system, etc., can solve the problem of increasing the size and weight of the whole machine, and can not divide and combine the radio frequency signal in TD mode, and reduce the performance of the whole machine. indicators, reliability and other issues, to achieve the effect of good maintenance and improved integration

Inactive Publication Date: 2010-07-21
WUHAN WINNINGCHINA MICROSYST TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing radio frequency optical transmission module can only transmit the radio frequency light of the uplink and downlink splits, and cannot split and combine the radio frequency signals of the TD mode. If the radio frequency signals of the TD mode are to be transmitted, additional synchronous detection is required equipment, synchronous control equipment, and time-division duplex circuit units, so the volume and weight of the whole machine are increased, and the performance index and reliability of the whole machine are reduced.

Method used

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  • Radio-frequency optical transport module based on TD mode and synchronous control method
  • Radio-frequency optical transport module based on TD mode and synchronous control method
  • Radio-frequency optical transport module based on TD mode and synchronous control method

Examples

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Effect test

Embodiment 1

[0036] Embodiment 1 is a radio frequency optical transmission module based on TD mode and its synchronous control method. The transmission module is as follows: figure 1 As shown in , between the RF input / output port and the optical fiber input and output port, the RF attenuator and the RF / optical conversion unit connected in series constitute the RF / optical conversion link, and the optical / RF conversion unit connected in series and another RF attenuator The device constitutes an optical / radio frequency conversion link, and the radio frequency time division multiplexing unit is externally connected to the input / output port of the radio frequency signal, and connected to the input port of the radio frequency / optical conversion link and the output port of the optical / radio frequency conversion link internally, Used for time division duplexing of radio frequency signals. The main synchronization detection unit is used to detect the power and synchronization information of the rad...

Embodiment 2

[0047] Embodiment 2. First, another method for synchronous control of radio frequency optical transmission based on TD mode is described. In the method, the near-end adopts the master synchronization detection method, and the far-end adopts the method of directly synchronizing with the near-end synchronization signal. It is: the near end detects the power and time information of the downlink signal at the intersection of the switch unit through the main synchronization detection unit, and generates a synchronous switch control signal; sends the synchronous switch control signal to the synchronization control unit; when the main synchronization mode is in the working state , the synchronous control unit sends the control signal to the synchronous switch unit to complete the multiplexing / demultiplexing of the near-end radio frequency signal; the synchronous control unit sends the control signal to the monitoring unit; the monitoring unit sends the control signal The signal is sen...

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Abstract

The invention relates to a radio light transmission module based on TD mode and relative synchronous control method. Wherein, the invention collects and analyzes the property and states (lighting power, receiving power and radio power, etc) of radio light transmission module to intelligently adjust the radio output power, etc, to realize best working state. In addition, the invention combines thecontroller and traditional radio light transmission module, to analyze and detect the laser and radio emitter of radio light transmission device.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to a TD mode-based radio frequency optical transmission module and a synchronous control method thereof. technical background [0002] An existing radio frequency optical transmission module includes a radio frequency / optical input unit and an optical / radio frequency output unit. Wherein, the radio frequency / optical input unit is composed of a radio frequency input matching circuit, a high-pass filter circuit, a drive circuit, a laser, a low-pass filter circuit and an FSK modulator. The radio frequency signal is sent to the drive circuit through the radio frequency input matching circuit and the high-pass filter circuit, and the control signal output by the FSK modulation circuit and the low-pass filter circuit is also output to the drive circuit, thereby converting the radio frequency signal into an optical signal and outputting it through the optical fiber; The optical / ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/14H04B10/16H04B10/08H04B10/071H04B10/2575
Inventor 刘胜杨国民陈方赵德满范旺生杨春华
Owner WUHAN WINNINGCHINA MICROSYST TECH