Seller: California Books, Miami, FL, U.S.A.
Condition: New.
Seller: California Books, Miami, FL, U.S.A.
Condition: New.
Seller: Books Puddle, New York, NY, U.S.A.
Condition: New.
Seller: Books Puddle, New York, NY, U.S.A.
Condition: New.
Seller: Lucky's Textbooks, Dallas, TX, U.S.A.
US$ 55.56
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Seller: Books Puddle, New York, NY, U.S.A.
Condition: New. pp. 82.
Seller: Ria Christie Collections, Uxbridge, United Kingdom
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Published by Books on Demand|BiblioScholar, 2013
ISBN 10: 1288909918 ISBN 13: 9781288909919
Language: English
Seller: moluna, Greven, Germany
US$ 74.68
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Add to basketCondition: New. The most bandwidth-efficient communication methods are imperative to cope with the congested frequency bands. Pulse shaping methods have excellent effects on narrowing bandwidth and increasing band utilization. The position of the baseband filters for the p.
Seller: Mispah books, Redhill, SURRE, United Kingdom
US$ 117.76
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Add to basketPaperback. Condition: Like New. Like New. book.
Seller: AHA-BUCH GmbH, Einbeck, Germany
US$ 97.93
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Add to basketTaschenbuch. Condition: Neu. Neuware - The most bandwidth-efficient communication methods are imperative to cope with the congested frequency bands. Pulse shaping methods have excellent effects on narrowing bandwidth and increasing band utilization. The position of the baseband filters for the pulse shaping is crucial. Post-modulation pulse shaping (a low pass filter is located after the modulator) can change signals from constant envelope to non-constant envelope, and non-constant envelope signals through non-linear device (a SSPA or TWT) can further spread the power spectra. Pre-modulation pulse shaping (a filter is located before the modulator) will have constant envelope. These two pulse shaping methods have different effects on narrowing the bandwidth and producing bit errors. This report studied the effect of various pre-modulation pulse shaping filters with respect to bandwidth, spectral spikes and bit error rate. A pre-modulation pulse shaped 8-ary Phase Shift Keying (8PSK) modulation was used throughout the simulations. In addition to traditional pulse shaping filters, such as Bessel, Butterworth and Square Root Raised Cosine (SRRC), other kinds of filters or pulse waveforms were also studied in the pre-modulation pulse shaping method. Simulations were conducted by using the Signal Processing Worksystem (SPW) software package on HP workstations which simulated the power spectral density of pulse shaped 8-PSK signals, end to end system performance and bit error rates (BERS) as a function of Eb/No using pulse shaping in an AWGN channel. These results are compared with the post-modulation pulse shaped 8-PSK results. The simulations indicate traditional pulse shaping filters used in pre-modulation pulse shaping may produce narrower bandwidth, but with worse BER than those in post-modulation pulse shaping. Theory and simulations show pre- modulation pulse shaping could also produce discrete line power spectra (spikes) at regular frequency intervals.
Seller: Majestic Books, Hounslow, United Kingdom
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Seller: Majestic Books, Hounslow, United Kingdom
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Seller: Biblios, Frankfurt am main, HESSE, Germany
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Seller: Biblios, Frankfurt am main, HESSE, Germany
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Seller: Majestic Books, Hounslow, United Kingdom
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Add to basketCondition: New. Print on Demand pp. 82.
Seller: THE SAINT BOOKSTORE, Southport, United Kingdom
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Add to basketPaperback / softback. Condition: New. This item is printed on demand. New copy - Usually dispatched within 5-9 working days 193.
Seller: Biblios, Frankfurt am main, HESSE, Germany
US$ 80.07
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Add to basketCondition: New. PRINT ON DEMAND pp. 82.