300mhz-800mhz analog TV station transmission power radiation test method

Abstract

The invention discloses an unmanned aerial vehicle low-altitude radiation testing method for the transmitting power of a 300MHz-800MHz simulation television station and belongs to the field of testingof performance indexes of the radio station equipment. The method comprises the following steps: firstly, information of a tested simulation television station is collected, and the unmanned aerial vehicle and the measuring equipment are preprocessed; then, the receiving antenna of the unmanned aerial vehicle is aligned to the transmitting antenna of the tested station, the unmanned aerial vehicle receives the control of an unmanned aerial vehicle control device in the air, and the attitude is adjusted in real time; the distance between the transmitting antenna and the receiving antenna is measured through a distance measuring and positioning device; finally, the measuring equipment calculates the transmission path loss A and converts an electromagnetic wave into an electric signal, the peak power Pr transmitted to the receiving antenna is calculated according to the electric signal, and the equivalent isotropic radiated power EIRP of the tested station is calculated. According to themethod in the invention, the terrain limitation is greatly reduced, the performance indexes of the broadcast television station equipment are more comprehensively and accurately detected so as to obtain a relatively high precision test result; and the timeliness, the flexibility and the autonomy of the detection work of the broadcast television station equipment are improved.

Description

technical field [0001] The invention belongs to the field of performance index testing of radio transmission systems, in particular to a low-altitude radiation test method for unmanned aerial vehicles with 300MHz-800MHz simulated transmission power of a TV station. Background technique [0002] In the prior art, the test of the transmitting power of the analog TV station is mainly carried out through conduction and ground radiation reception. In the conduction mode, the station transmitter outputs the RF power to the input terminal of the test equipment through the coupling port, and the transmission power of the transmitter can be calculated according to the coupling power and coupling coefficient received by the test equipment. This traditional conduction test method is not only unable to investigate the influence of the antenna feed system on the actual radiation characteristics of the station, but also often cannot be carried out because the transmitter of the station do...

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Problems solved by technology

[0003] The present invention aims at problems such as large measurement errors, inflexible test work, and high requirements for the location of the test site that exist in the current test of the transmitting power of the analog TV station. The present invention provides a 300MHz-800MHz analog TV station transmitting power drone. Low Altitude Radiation Test Method

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