A method of adaptive pulse width modulation for multiple-valued data transmission

作者：Sun Hua Juan^*; Yan Xiao Hong; Hao Xue Yuan

来源：Acta Physica Sinica, 2015, 64(1): 018402.

DOI：10.7498/aps.64.018402

• pulse-width modulation
• multiple-valued data
• data transmission
• pre-emphasis

The non-ideal characteristics such as dielectric loss and skin effect of coaxial cables etc can cause attenuation of the high-frequency component of the signals, making it difficult for the receiver to interpret the signal, thereby greatly reducing the data rate. Pulse width modulation (PWM) pre-emphasis technique, which has been very good to use in the binary signal, utilizes time-domain information processing to increase the data rate. We introduce the new adaptive PWM pre-emphasis method to further eliminate the data-dependent jitter, which can dynamically compensate for the transmission loss of multiple-valued data with strong or weak pre-emphasis. The results of eye diagrams show that this method can improve the quality of signal transmission.

• 出版日期2015-1-5
• 单位南京大学