PSpice for Digital Communications Engineering - Paul Tobin

PSpice for Digital Communications Engineering

(Autor)

Buch | Softcover
199 Seiten
2007
Morgan & Claypool Publishers (Verlag)
978-1-59829-162-9 (ISBN)
54,80 inkl. MwSt
Shows how to simulate digital communication systems and modulation methods using the very powerful Cadence Orcad PSpice version 10.5 suite of software programs. This book applies Fourier series and Fourier transform to signals. It examines various baseband signals, including duo-binary baseband signaling, and the spectra generated.
PSpice for Digital Communications Engineering shows how to simulate digital communication systems and modulation methods using the very powerful Cadence Orcad PSpice version 10.5 suite of software programs. Fourier series and Fourier transform are applied to signals to set the ground work for the modulation techniques introduced in later chapters. Various baseband signals, including duo-binary baseband signaling, are generated and the spectra are examined to detail the unsuitability of these signals for accessing the public switched network. Pulse code modulation and time-division multiplexing circuits are examined and simulated where sampling and quantization noise topics are discussed. We construct a single-channel PCM system from transmission to receiver i.e. end-to-end, and import real speech signals to examine the problems associated with aliasing, sample and hold.

Companding is addressed here and we look at the A and mu law characteristics for achieving better signal to quantization noise ratios. Several types of delta modulators are examined and also the concept of time divisionmultiplexing is considered. Multi-level signaling techniques such as QPSK andQAMare analyzed and simulated and 'home-made meters', such as scatter and eye meters, are used to assess the performance of these modulation systems in the presence of noise. The raised-cosine family of filters for shaping data before transmission is examined in depth where bandwidth efficiency and channel capacity is discussed. We plot several graphs in Probe to compare the efficiency of these systems. Direct spread spectrum is the last topic to be examined and simulated to show the advantages of spreading the signal over a wide bandwidth and giving good signal security at the same time.

Fourier Analysis, Signals, and Bandwidth
Baseband Transmission Techniques
Sampling and Pulse Code Modulation
Passband Transmission Techniques
Multilevel Signaling and Bandwidth Efficiency
System Performance and Test Instruments
Direct Sequence Spread Spectrum Systems

Erscheint lt. Verlag 30.4.2007
Reihe/Serie Synthesis Lectures on Digital Circuits and Systems
Verlagsort San Rafael
Sprache englisch
Maße 187 x 235 mm
Themenwelt Technik Elektrotechnik / Energietechnik
Technik Nachrichtentechnik
ISBN-10 1-59829-162-9 / 1598291629
ISBN-13 978-1-59829-162-9 / 9781598291629
Zustand Neuware
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