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Effect on digital TV of disturbances from electrical equipment evaluated using an actual broadcasting signal

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3 Author(s)
Kuwabara, N. ; Dept. of Electr. Eng. & Electron., Kyushu Inst. of Technol., Kitakyushu, Japan ; Yanagi, S. ; Miyake, H.

The effect that disturbances from electrical equipment have on a digital TV signal was evaluated using an actual broadcasting signal. Various types of disturbance from equipment were measured by an oscilloscope and then the measured waveforms were generated by an arbitrary waveform generator. The TV signal and the disturbance level were evaluated using the quasi-peak value, amplitude probability distribution (APD), and average power. The effect on received images was evaluated using mean opinion score (MOS) and bit error rate (BER). The relation between MOS and the ratio of desired and undesired signal levels (DU ratio) was investigated for actual digital TV and analogue TV signals. Results suggest that evaluation using the APD or the average power is appropriate because these methods are less affected by the type of disturbance. The relation between the MOS and the BER indicates that image quality can be roughly estimated from the BER.

Published in:

Electromagnetic Compatibility (EMC), 2011 IEEE International Symposium on

Date of Conference:

14-19 Aug. 2011