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Author: J. Krishnamurthy Publisher: ISBN: Category : Languages : en Pages : 101
Book Description
Two Robust Detection Schemes for the detection of a class of time varying signals in additive disturbance are proposed and analyzed and their performance is evaluated. The proposed detection schemes, called Robust Detection Scheme I (RDSI) and Robust Detection Scheme II (RDSII) are applicable when the samples of the received signal or a filtered version of the received signal contain pure signal components that are all equal. It is shown that both binary and M-ary Phase Shift Keyed and Frequency Shift Keyed Signals can be detected by using RDSI and RDSII. The performance of the detectors is compared with that of the Mean and Sign detectors. It is observed that the proposed detectors generally lead to lower probability of error, except when the Mean and the Sign detectors are the Maximum Likelihood detectors. Analytical expressions for the average probability of error, the asymptotic relative efficiency and the asymptotic efficiency are derived and it is shown that the proposed detectors are superior or equivalent to the Sign detector and superior to the Mean detector in nongaussian noise. (Author).
Author: J. Krishnamurthy Publisher: ISBN: Category : Languages : en Pages : 101
Book Description
Two Robust Detection Schemes for the detection of a class of time varying signals in additive disturbance are proposed and analyzed and their performance is evaluated. The proposed detection schemes, called Robust Detection Scheme I (RDSI) and Robust Detection Scheme II (RDSII) are applicable when the samples of the received signal or a filtered version of the received signal contain pure signal components that are all equal. It is shown that both binary and M-ary Phase Shift Keyed and Frequency Shift Keyed Signals can be detected by using RDSI and RDSII. The performance of the detectors is compared with that of the Mean and Sign detectors. It is observed that the proposed detectors generally lead to lower probability of error, except when the Mean and the Sign detectors are the Maximum Likelihood detectors. Analytical expressions for the average probability of error, the asymptotic relative efficiency and the asymptotic efficiency are derived and it is shown that the proposed detectors are superior or equivalent to the Sign detector and superior to the Mean detector in nongaussian noise. (Author).
Author: J. Krishnamurthy Publisher: ISBN: Category : Languages : en Pages : 88
Book Description
A class of Robust Detection Schemes for the detection of a class of time varying signals in additive disturbance are proposed and analyzed and their performance is evaluated. The proposed detection schemes are applicable for the detection of both binary and M-ary Amplitude Shift Keyed Signals. Two detection schemes are proposed for solving the detection problem where the samples of the received signal contain pure signal components that are all unequal. These detection schemes are designated as nonparametric detection scheme and Detection Scheme with Fixed Thresholds (DSFT). The performance of these detectors is compared with that of the Least Squares Detector. It is observed that the proposed detection schemes are robust and generally lead to lower probability of error. The asymptotic relative efficiency for the detectors is shown to be greater than unity under a variety of noise conditions. The performance of the proposed detectors is immune to intersymbol interference if it is assumed that the intersymbol interference can be replaced by an unknown constant. These detectors lead to other advantages such as being unaffected by unknown amounts of DC drifts or changes in the mean values of the noise. (Author).
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 804
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: J. Krishnamurthy Publisher: ISBN: Category : Languages : en Pages : 37
Book Description
A robust detection scheme, called Detection Scheme with Learning of Thresholds (DSLT), for the detection of M-ary Amplitude Shift Keyed Signals is proposed and analyzed. It is shown that DSLT performs better (in the sense of lower probability of error) than the Detection Scheme with Fixed Thresholds. The improvement in performance is due to the fact that DSLT assumes a priori information regarding the approximate form of noise distribution, unlike DSFT. The performance of DSLT is independent of the mean value of the noise, unknown amounts of DC drifts and intersymbol interference if it can be assumed that the intersymbol interference can be replaced by an unknown constant. (Author).
Author: Hendrik C. Ferreira Publisher: John Wiley & Sons ISBN: 1119956285 Category : Technology & Engineering Languages : en Pages : 454
Book Description
Power Line Communications (PLC) is a promising emerging technology, which has attracted much attention due to the wide availability of power distribution lines. This book provides a thorough introduction to the use of power lines for communication purposes, ranging from channel characterization, communications on the physical layer and electromagnetic interference, through to protocols, networks, standards and up to systems and implementations. With contributions from many of the most prominent international PLC experts from academia and industry, Power Line Communications brings together a wealth of information on PLC specific topics that provide the reader with a broad coverage of the major developments within the field. Acts as a single source reference guide to PLC collating information that is widely dispersed in current literature, such as in research papers and standards. Covers both the state of the art, and ongoing research topics. Considers future developments and deployments of PLC
Author: Le Nguyen Binh Publisher: CRC Press ISBN: 142008206X Category : Science Languages : en Pages : 610
Book Description
The need for advanced transmission techniques over long haul optically amplified communications has prompted a convergence of digital and optical communications. Digital Optical Communications explores the practical applications of this union and applies digital modulation techniques to optical communications systems.After reviewing the fundamental
Author: J. Krishnamurthy
Author: J. Krishnamurthy
Author: Adam Dennis Hall
Author: J. Krishnamurthy
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Author: J. Krishnamurthy
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Author: John Priyantha Fonseka
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Author: Hendrik C. Ferreira
Author: Le Nguyen Binh