Evaluation of sensitivity of digital TV receiver subjected to intrasystem interference

This study demonstrates that the sensitivity of the orthogonal frequency division multiplexing (OFDM) digital television (DTV) receiver particularly for mobile reception subjected to intrasystem interference is possible to be estimated from the amplitude probability distributions (APDs) of the interfering noise measured with the subcarrier bandwidth of the DTV receiver. It was found that the bit error probability (BEP) after error correcting of victim DTV receiver is approximately estimated from APD of interfering noise by using the coding effect in the presence of Gaussian interference. And the experimental result showed that the coded BEP performance was highly correlated with the sensitivity of the mobile DTV receiver.