000			03688nam a22004095i 4500
999			_c387786 _d387786
001			387786
003			ES-MaUEC
005			20230402134112.0
006			a||||fo|||| 00| 0
007			cr nn 008mamaa
008			220601s2007 sz | s |||| 0|eng d
020			_a9783031797583
024	7		_a10.1007/978-3-031-79758-3 _2doi
040			_aES-MaUEC _bspa _cES-MaUEC _dES-MaUEC
050		4	_aTK5103.7 _b2007 EB
100	1		_aTobin, Paul, _d1948- _eautor _4aut _4http://id.loc.gov/vocabulary/relators/aut _9686470
245	1	0	_aPSpice for Digital Communications Engineering _cby Paul Tobin
250			_a1st edition 2007
264		1	_aCham _bSpringer International Publishing _c2007
300			_a1 recurso en línea (XIII, 199 páginas)
336			_atexto _btxt _2rdacontent
337			_aelectrónico _bc _2rdamedia
338			_arecurso electrónico _bcr _2rdacarrier
347			_aarchivo de texto _bPDF
490	0		_aSynthesis Lectures on Digital Circuits & Systems _x1932-3174
505	0		_aFourier 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.
520			_aPSpice 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.
988			_aSynthesis Collection of Technology_2007
630	0	0	_9683660 _aPSpice (Archivo de ordenador)
650		7	_2embne _9163291 _aComunicaciones digitales _xSimulación por ordenador
776	0	8	_iPrinted edition: _z9783031797576
776	0	8	_iPrinted edition: _z9783031797590
856	4	0	_uhttps://go.openathens.net/redirector/universidadeuropea.es?url=https://doi.org/10.1007/978-3-031-79758-3 _zAcceso a este recurso digital (usuarios Universidad Europea de Madrid)
942			_2lcc _cLE
998			_b04/2023 _dz _esc _zSI