Author: Lab-Volt (Quebec) LtdPublisher:
ISBN: 9782896401376
Category :
Languages : en
Pages : 15
Book Description
Quadrature Phase Shift Keying (QPSK/DQPSK)
Author: Lab-Volt (Quebec) LtdPublisher:
ISBN: 9782896401376
Category :
Languages : en
Pages : 15
Book Description
Quadrature Phase Shift Keying (QPSK/DQPSK).
Author: Quadrature Phase Shift Keying (QPSK/DQPSK).
Author: Digital Communications with Emphasis on Data Modems
Author: Richard W. MiddlesteadPublisher: John Wiley & Sons
ISBN: 1119011841
Category : Technology & Engineering
Languages : en
Pages : 828
Book Description
This book uses a practical approach in the application of theoretical concepts to digital communications in the design of software defined radio modems. This book discusses the design, implementation and performance verification of waveforms and algorithms appropriate for digital data modulation and demodulation in modern communication systems. Using a building-block approach, the author provides an introductory to the advanced understanding of acquisition and data detection using source and executable simulation code to validate the communication system performance with respect to theory and design specifications. The author focuses on theoretical analysis, algorithm design, firmware and software designs and subsystem and system testing. This book treats system designs with a variety of channel characteristics from very low to optical frequencies. This book offers system analysis and subsystem implementation options for acquisition and data detection appropriate to the channel conditions and system specifications, and provides test methods for demonstrating system performance. This book also: Outlines fundamental system requirements and related analysis that must be established prior to a detailed subsystem design Includes many examples that highlight various analytical solutions and case studies that characterize various system performance measures Discusses various aspects of atmospheric propagation using the spherical 4/3 effective earth radius model Examines Ionospheric propagation and uses the Rayleigh fading channel to evaluate link performance using several robust waveform modulations Contains end-of-chapter problems, allowing the reader to further engage with the text Digital Communications with Emphasis on Data Modems is a great resource for communication-system and digital signal processing engineers and students looking for in-depth theory as well as practical implementations.
QUADRATURE-QUADRATURE PHASE SHIFT KEYING.
Author: Debabrata SahaPublisher:
ISBN:
Category : Digital communications
Languages : en
Pages : 123
Book Description
Like MSK, Q('2)PSK also has self clocking and self synchronizing ability. A synchronization scheme is presented for coherent demodulation of Q('2)PSK signal.
Differentially Coherent Quadrature-Quadrature Phase Shift Keying (Q2PSK)
Author: Osama Mohamed El-GhandourPublisher:
ISBN:
Category :
Languages : en
Pages : 188
Book Description
Simulation of Performance of Binary Phase Shift Keying (BPSK) and Quadrature Phase Shift Keying (QPSK)
Author: Matthew BousquetPublisher:
ISBN:
Category : Computer engineering
Languages : en
Pages : 98
Book Description
Recent Trends in Wireless and Mobile Networks
Author: Abdulkadir ÖzcanPublisher: Springer Science & Business Media
ISBN: 3642219365
Category : Computers
Languages : en
Pages : 443
Book Description
This book constitutes the refereed proceedings of the Third International Conference on Wireless, Mobile Networks, WiMo 2011, and of The Third International Conference on Computer Networks and Communications, CoNeCo 2011, held in Ankara, Turkey, in June 2011. The 40 revised full papers presented were carefully reviewed and selected from 202 submissions.
Quadrature Clock Modulation Versus Binary and Quadrature Phase Shift Keying in the Presence of Intersymbol Interference
Author: Gary A. WhitePublisher:
ISBN:
Category :
Languages : en
Pages : 88
Book Description
Quadrature Clock Modulation (QCM) is a binary phase shift keying (BPSK) technique in which alternate bits are transmitted orthogonally. Compared to normal BPSK modulation, QCM improves the performance of a communication system which is limited by intersymbol interference (ISI). Compared to quadrature phase shift keying (QPSK) for the same information rates, QCM is slightly inferior in data detection performance. The average carrier tracking capability of a QCM scheme is equal to that of BPSK for the same closed-loop bandwidth and time bandwidth product (BT) of the channel filter at a specified signal energy to noise ratio (Eb/No). The data detection performance for QCM, BPSK, and QPSK is analyzed by comparing the one-shot probability of error conditioned on a phase error as a function of Eb/No and BT for a specified channel filter. Carrier tracking performance for QCM and BPSK is analyzed by obtaining an average phase error variance for the linear model of a Costas loop.
Author: Ezio Biglieri