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- W2020199363 abstract "A practical system was developed which locates the origin of reception interference (the so-called ghost interference) by the reflection of a wave incident on a building which is a major factor for electromagnetic interference in television broadcasting. One of the authors has already developed a prototype system in which the location of the ghost source can be detected by measuring the delay time and the direction of arrival of the reflected wave (so-called ghost wave) with respect to the direct wave at the measurement point. In this method, the ghost wave is separated at each delay time while the measurement antenna is rotated and the receiving pattern of each ghost wave is obtained so that the location of the ghost source is detected.A system of locating the ghost sources was developed. In this system, a small computer is combined with the PDUR measurement system for measurement and analysis of the ghost wave. As a result, the portability is increased to be useful at the location of the electromagnetic interference by means of size reduction and reduced power consumption. From the examples of measurement of actual ghost interference and the direction-finding accuracy at the measurement site, the measurement accuracy was studied for the reflection location of the ghost wave in the VHF and UHF broadcasting bands so that the serviceability of the system was confirmed." @default.
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- W2020199363 date "1990-06-01" @default.
- W2020199363 modified "2023-09-25" @default.
- W2020199363 title "Development of a location system for tv ghost sources and its serviceability" @default.
- W2020199363 doi "https://doi.org/10.1002/ecja.4410730611" @default.
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