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English

The reason why interleaving is used on OFDM is to attempt to spread the errors out in the bit-stream that is presented to the error correction decoder, because when such decoders are presented with a high concentration of errors the decoder is unable to correct all the bit errors, and a burst of uncorrected errors occurs.

Chinese

在OFDM上使用交錯的原因是嘗試將錯誤擴散到呈現給更正解碼器的位元中,因為當這樣的解碼器呈現高度集中的錯誤時,解碼器無法更正所有位元錯誤,並發生一連串未更正的錯誤。