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

Sun Hua-Juan | Zendy; Yan Xiao-Hong | Zendy; Hao Xue-Yuan | Zendy

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

Author(s) -

Sun Hua-Juan,

Yan Xiao-Hong,

Hao Xue-Yuan

Publication year - 2015

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.64.018402

Subject(s) - pulse width modulation , jitter , emphasis (telecommunications) , computer science , transmission (telecommunications) , coaxial cable , signal (programming language) , modulation (music) , attenuation , data transmission , analog transmission , electronic engineering , optics , acoustics , telecommunications , physics , analog signal , power (physics) , computer network , quantum mechanics , engineering , cable gland , programming language

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.

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