Method and system for remote radio frequency transmission of weather radar
A long-distance radio frequency and weather radar technology, which is used in optical fiber transmission, radio wave measurement systems, and re-radiation to achieve the effect of improving dynamic range, small distortion, and enhanced signal quality.
Active Publication Date: 2018-02-13
航天新气象科技有限公司
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a long-distance radio frequency transmission method and system for weather radar, which solves the inconvenience caused by the location of the weather radar and the problem of large loss of traditional coaxial cables and the inability to transmit long-distance. Insufficient to achieve high-quality radio frequency signal transmission of weather radar
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Embodiment Construction
[0058] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0059] Such as figure 1 As shown, a weather radar long-distance radio frequency transmission method specifically includes the following steps:
[0060] Step 1: convert the radio frequency signal into an optical signal through an uplink optical transmitter;
[0061] Step 2: Send the optical signal to the uplink optical receiver through the optical fiber, and the uplink optical receiver converts the optical signal into a radio frequency signal and sends it to multiple receiving sub-stations;
[0062] Step 3: All receiving sub-stations send the received radio frequency signal through the antenna;
[0063] Step 4: The low noise amplifier amplifies the radio frequency signal received through the antenna and transmits i...
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The invention relates to a method and a system for meteorological radar long distance radio frequency transmission. The method comprises steps that step 1, radio frequency signals are converted through an uplink light emitter into light signals; step 2, the light signals are sent through a fiber to an uplink light receiver, the light signals are converted by the uplink light receiver into radio frequency signals and are then sent to multiple reception sub stations; step 3, the radio frequency signals received by the all reception sub stations are sent out through antennas; step 4, the radio frequency signals received by the antennas are amplified through a low noise amplifier and are then transmitted to a downlink light emitter, and the amplified radio frequency signals are converted by the downlink light emitter into light signals; step 5, the light signals are sent to a downlink light receiver through a fiber and are then processed through the downlink light receiver to acquire radio frequency signals. Through the method, work stability of a light radar is improved, distortion of the received electrical signals is guaranteed to be smallest, and the meteorological radar radio frequency signals are guaranteed to be precisely and stably transmitted in the long distance fiber.
Description
technical field [0001] The invention relates to a long-distance radio frequency transmission method and system for weather radar. Background technique [0002] Due to the particularity of its work, weather radar equipment is often installed in places with special geographical environments, such as mountain tops, coasts, forests, etc. These relatively remote geographical locations have brought a lot of inconvenience to the operation and maintenance of equipment, especially the normal working environment of the staff cannot be guaranteed; in addition, with the continuous development of weather radar, the problems of antenna line routing and anti-electromagnetic interference The contradiction between radars becomes more and more serious as the number of front units increases; at the same time, due to the adoption of new technologies and the substantial increase in the amount of information to be transmitted between radar subsystems, the amount of data and data rate that radars ...
Claims
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IPC IPC(8): H04B10/2575G01S13/95
CPCG01S7/003Y02A90/10
Inventor 王斯正孙祥赵昊
Owner 航天新气象科技有限公司