Automatic monitoring method and monitoring system for radiation efficiency of shortwave transmitting antenna

Abstract

The invention discloses an automatic monitoring method for radiation efficiency of a shortwave transmitting antenna. A far-field region field point electric field intensity amplitude is acquired through a far-field region field strength measurement unit, sampling of antenna radiation field point power area density is realized, and the radiation power of the antenna is estimated through a direction coefficient acquired by use of a sampling value according to antenna radiation field simulation; and a near-field region power measurement unit measures forward power to obtain input power of the antenna, and the antenna radiation efficiency is obtained according to the specific value of the radiation power and the input power. The method provides quantitative index for evaluation of radiation efficiency of the shortwave transmitting antenna, and can realize online automatic monitor of the radiation efficiency without affecting the timeliness and effectiveness of the shortwave transmitting antenna. The device is simple and is convenient to operate. The invention also provides an automatic monitoring system for radiation efficiency of the shortwave transmitting antenna.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a technology applied to the automatic monitoring of the radiation efficiency of short-wave transmitting antennas, in particular to a method and a monitoring system for automatic monitoring of the radiation efficiency of short-wave transmitting antennas. Background technique [0002] The communication task of the short-wave transmitting station is very heavy, and the transmitting antenna system should be in good condition at all times. Therefore, it is often necessary to inspect the health status of the transmitting antenna system. Many short-wave transmitting stations are located in mountainous areas and suburbs, with inconvenient transportation. The antenna systems of the transmitting stations mainly adopt manual inspection and maintenance, and the cycle of manual inspection and maintenance is relatively long. Short-wave communication stations are generally several Inspectio...

AI Technical Summary

Problems solved by technology

By studying the shortwave antenna radiation efficiency monitoring technology based on the measurement of external field strength under complex terrain conditions, the automatic monitoring of shortwave antenna radiation efficiency changes can be realized, and quantitative indicators can be provided for the evaluation of shortwave antenna radiation performance and working status. Efficient automatic monitoring provides a method to solve the problems of manual inspection difficulty and long measurement cycle

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