Radiation testing system for simulation television station transmitting power under open ground environment

Abstract

The invention provides a radiation testing system for simulation television station transmitting power under an open ground environment, and belongs to the field of radio transmission system performance index testing. The testing system comprises a directional receiving antenna, power measuring equipment, a ranging and locating device and a control device; the directional receiving antenna is used for receiving electromagnetic waves transmitted by a simulation television station, converting the electromagnetic waves into electric signals and transmitting the electric signals to the power measuring equipment; the power measuring equipment calculates the peak power Pr incident on the receiving antenna according to the electric signals; the ranging and locating device is used for measuring the height h1 of a transmitting antenna, the height h2 of the receiving antenna and the distance L between the receiving antenna and the transmitting antenna; the control module comprises a equivalent isotropic radiated power estimating module, and the equivalent isotropic radiated power estimating module is used for calculating the equivalent isotropic radiated power (EIRP) of a tested station. The radiation testing system for the simulation television station transmitting power under the open ground environment can achieve more comprehensive and accurate monitoring on a station radio transmission system including transmitters and antenna feed systems, and therefore the working flexibility and autonomy are greatly improved.

Description

technical field [0001] The invention provides a radiation test system for simulating the transmission power of a TV station in an open ground environment, and belongs to the field of performance index test of a radio transmission system. Background technique [0002] In the prior art, the test of the transmitting power of the analog TV station is mainly conducted through conduction. The transmitter of the station 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 does not have a coupling port or the coupling parameters of the coupling port ar...

AI Technical Summary

Problems solved by technology

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 does not have a coupling port or the coupling parameters of the coupling port are missing.

In addition, from the perspective of the actual effect of radio monitoring, because the traditional conduction test method requires the coordination and cooperation of multiple departments such as testing institutions and stations, the timeliness, flexibility and autonomy of monitoring work will also be affected.

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