PSR Srinivasa Sastry

Work place: RCI, DRDO, Hyderabad, India



Research Interests: Engineering, Computational Engineering, Computational Science and Engineering


PSR Srinivasa Sastry has obtained his M.Tech. in Digital Electronics from Cochin University of Science and Technology, He worked in ISRO Inertial Systems Unit of Vikram Sarabhai Space Centre, ISRO, Trivandrum from 1987 to 1999. He worked for the design and development the Solar Array Drive Control systems for IRS and INSAT Series of Satellites. He joined RCI, DRDO in 1999 and worked for the development of Hydraulic and Electo-Mechanical Actuation Systems for long range and interceptor missiles. He has designed and developed several Electro Hydraulic and Electro Mechanical Actuators, Analog and Digital Controllers. He has received several Group Awards and Performance Excellence Award.

Author Articles
Comparative Account of Robust H∞ Techniques for Missile Autopilot Design

By PSR Srinivasa Sastry SK Ray G. Mallikarjuna Rao S. K. Biswas

DOI:, Pub. Date: 8 Apr. 2019

H∞ control techniques are prominently used as solutions for flight control problems. From the literature, a variety of techniques is reported in the last three decades with specific merits and demerits, which, when applied to multiple flight control scenarios, showing trade off in terms of performance and robustness. However, all these methods possess superior performance when compared with that of classical approaches. In this paper an attempt is made to provide an insight into the requirements and criticalities in the design of missile autopilot. This paper introduces some of the significant H∞ control techniques like H∞ mixed sensitivity, H∞ loop shaping and μ synthesis, with specific emphasis on analysis of autopilot design. A comparative account of modern control methods is presented on the basis of system performance and robustness, which will be helpful in the selection of the appropriate design method for specific application.

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