P. Sumathi

Publications40
h-index8
Citations243
Highly Influential Citations9
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Integrated Phase-Locking Scheme for SDFT-Based Harmonic Analysis of Periodic Signals
TLDR
The sliding discrete Fourier transform splits periodic signals into selected harmonic components, as on-line time functions. Expand
  • 39
  • 3
A Frequency Demodulation Technique Based on Sliding DFT Phase Locking Scheme for Large Variation FM Signals
  • P. Sumathi
  • Mathematics, Computer Science
  • IEEE Communications Letters
  • 5 October 2012
TLDR
A new frequency demodulation scheme based on sliding discrete Fourier transform (SDFT) and a phase locking scheme (PLL) is proposed for extracting message signal from sinusoidal frequency modulated signals. Expand
  • 5
  • 2
An efficient clustering algorithm based on Z-Score ranking method
TLDR
In this paper, we propose an algorithm to compute initial cluster centers for K-means clustering based on Z-Score ranking. Expand
  • 15
  • 1
Local clustering and threshold sensitive routing algorithm for Wireless Sensor Networks
Wireless Sensor Networks (WSN) is an excellent technology that can sense, measure, and gather information from the real world and, based on some local decision process transmit the sensed data to the… Expand
  • 28
  • 1
An analysis of intrusion detection system using back propagation neural network
TLDR
In recent years, internet and computers have been utilized by many people all over the world in several fields. Expand
  • 20
  • 1
Secure Neighbor Discovery (SEND) Protocol challenges and approaches
TLDR
This paper propose performance analysis and comparison framework for SEND functionalities, discuss the practical consideration and approaches of SEND deployment in securing IPv6 network. Expand
  • 5
  • 1
Phase locking scheme based on look-up-table-assisted sliding discrete fourier transform for low-frequency power and acoustic signals
TLDR
The frequency tracking performance of sliding discrete Fourier transform (SDFT)-based phase locking (PLL) scheme has been improved by supplementing a cosine look-up table (cLUT) loop to the SDFT-based PLL. Expand
  • 14
Moving Window Filter Based Frequency-Locked Loop for Capacitance Measurement
  • J. Hazarika, P. Sumathi
  • Mathematics, Computer Science
  • IEEE Transactions on Industrial Electronics
  • 21 July 2015
TLDR
The proposed frequency-locked loop (FLL) utilizes the flat frequency response characteristics of the moving window filter (MWF) in closed-loop and adaptive sampling pulse adjustment for capacitance measurement. Expand
  • 12
Mono-component AM–FM Signal Decomposition Based on Discrete Second-Order Generalized Integrator Phase-Locked Loop
TLDR
A mono-component AM–FM signal decomposition method is proposed using discrete second-order generalized integrator and phase-locking scheme. Expand
  • 4
Novel pre-processing technique for web log mining by removing global noise and web robots
TLDR
This paper continues the line of research on Web access log analysis is to analyze the patterns of web site usage and the features of users behavior. Expand
  • 26