2 citations · 3 across the 4 of their papers we have counts for
4 papers
Data-Driven Strictly Positive Real System Identification with prior System Knowledge
Nikhil Potu Surya Prakash, Zhi Chen, Roberto Horowitz
Strictly Positive Real (SPR) transfer functions arise in many areas of engineering like passivity theory in circuit analysis and adaptive control to name a few. In many physical sy…
Adaptive Feedforward Reference Design for Active Vibration Rejection in Multi-Actuator Hard Disk Drives
Zhi Chen, Nikhil Potu Surya Prakash, Roberto Horowitz
In December 2017, Seagate unveiled the Multi Actuator Technology to double the data performance of the future generation hard disk drives (HDD). This technology will equip drives w…
System Identification in Multi-Actuator Hard Disk Drives with Colored Noises using Observer/Kalman Filter Identification (OKID) Framework
Nikhil Potu Surya Prakash, Zhi Chen, Roberto Horowitz
Multi Actuator Technology in Hard Disk drives (HDDs) equips drives with two dual stage actuators (DSA) each comprising of a voice coil motor (VCM) actuator and a piezoelectric micr…
Frequency Separation based Adaptive Feedforward Control for Rejecting Wideband Vibration with Application to Hard Disk Drives
Jinwen Pan, Zhi Chen, Yong Wang +1
In this paper, a frequency separation based adaptive feedforward control algorithm is developed with the ability to identify the plant and do compensation region by region. In this…