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Dive into the research topics where Ranjit Gharpurey is active.

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Featured researches published by Ranjit Gharpurey.


asilomar conference on signals, systems and computers | 1997

A π/4-shift Qpsk Receiver For Tdma/tdd Systems

Srinath Hosur; Anand G. Dabak; Ranjit Gharpurey; Kannan Krishna; Panos Papmichalis; Texas Instrumentslncorporated

This paper proposes a n Mshij? QPSK receiver for microcellular TDMMDD systems. The receiver is suited for an all digital implementation. It assumes a coarse automatic gain-control (AGC), which is updated digitally. The receiver uses a new maximumlikelihood (ML) based scheme for fast synchronization in its all-digital timing recovery circuit. The proposed timing acquisition scheme is independent of the AGC setting and does not suffer from hangups..


asilomar conference on signals, systems and computers | 1997

A /spl pi//4-shift QPSK receiver for TDAMA/TDD systems

Srinath Hosur; Anand G. Dabak; Ranjit Gharpurey; K. Krishna; P. Paptnichalis

This paper proposes a /spl pi//4-shift QPSK receiver for microcellular TDMA/TDD systems. The receiver is suited for an all-digital implementation. It assumes a coarse automatic gain-control (AGC) which is updated digitally. The receiver uses a new maximum-likelihood (ML) based scheme for fast synchronization in its all-digital timing recovery circuit. The proposed timing acquisition scheme is independent of the AGC setting and does not suffer from hangups.


Archive | 2003

Time-frequency interleaved orthogonal frequency division multiplexing ultra wide band physical layer

Anuj Batra; Jaiganesh Balakrishnan; Anand G. Dabak; Ranjit Gharpurey; Paul H. Fontaine; Heng-Chih Lin


Archive | 2002

Direct conversion radio receiver using combined down-converting and energy spreading mixing signal

Ranjit Gharpurey


Archive | 2001

Semiconductor device extractor for electrostatic discharge and latch-up applications

Sridhar Ramaswamy; Snehamay Sinha; Gopalarao Kadamati; Ranjit Gharpurey


Archive | 2003

Ultra wideband (uwb) transmitter architecture

Anuj Batra; Anand G. Dabak; Ranjit Gharpurey


Archive | 2000

Pipelined analog to digital converter using digital mismatch noise cancellation

Paul C. Yu; Shereef Shehata; Ranjit Gharpurey


Archive | 2001

Low power variable gain amplifier

Ranjit Gharpurey


Archive | 2004

Square-root raised cosine ultra-wideband communications system

Jaiganesh Balakrishnan; Anuj Batra; Anand G. Dabak; Abdellatif Bellaouar; Paul H. Fontaine; Michel Frechette; Ranjit Gharpurey; Heng-Chih Lin


Archive | 2003

Reconfigurable analog-to-digital converter

Feng Chen; Ranjit Gharpurey

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