A new combined equalization / synchronization technique for partial response systems ( Invited Paper )

A new combined equalization/synchronization technique, known as SC-PMC (self-convoluting partial mass center), for use in partial response systems is presented. The work is significant as the new technique utilizes a single tap delay line LMS (Least Mean Square) filter for performing the task of equalization and synchronization for the partial response transceiver. Conventional partial response systems often require a separate LMS filter for equalization and an additional synchronization block for synchronizing the transceivers. The new work will reduce transceiver components significantly at the price a more advanced LMS firmware algorithm which is able to handle equalization and synchronization at the same time. This work, although reported for a communication application, is also applicable in HDD (hard disk drive) applications where partial response techniques are often employed for HDD read back functionalities. Key-Words: Timing, Equalization, Synchronization, Equalization, Partial response, Self–Convolution