By Kenton Williston
Книга electronic sign Processing: international category Designs electronic sign Processing: global classification DesignsКниги Электротехника и связь Автор: Kenton Williston Год издания: 2009 Формат: pdf Издат.:Newnes Страниц: 479 Размер: 3,3 ISBN: 978-1-85617-623-1 Язык: Английский0 (голосов: zero) Оценка:All the layout and improvement thought and course an electronic engineer wishes in a single blockbuster ebook! Kenton Williston, writer, columnist, and editor of DSP DesignLine has chosen the superior electronic sign processing layout fabric from the Newnes portfolio and has compiled it into this quantity. the result's a e-book protecting the gamut of DSP design?from layout basics to optimized multimedia techniques?with a robust pragmatic emphasis. as well as particular layout suggestions and practices, this publication additionally discusses a variety of techniques to fixing DSP layout difficulties and the way to effectively observe idea to real layout initiatives. the fabric has been chosen for its timelessness in addition to for its relevance to modern embedded layout issues.CONTENTS:Chapter 1 ADCs, DACs, and Sampling TheoryChapter 2 electronic FiltersChapter three Frequency area ProcessingChapter four Audio CodingChapter five Video ProcessingChapter 6 ModulationChapter 7 DSP OptionsChapter eight DSP Processors and Fixed-Point ArithmeticChapter nine Code Optimization and source PartitioningChapter 10 checking out and Debugging DSP Systems*Hand-picked content material chosen by way of Kenton Williston, Editor of DSP DesignLine*Proven top layout practices for picture, audio, and video processing*Case histories and layout examples get you off and working in your present undertaking
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Extra info for Digital Signal Processing: World Class Designs
22: Nonmonotonic ADC with missing code ultimately the ﬁnal code is derived. 23 a, b, and c, respectively. This type of ADC should be trimmed so that drift due to aging or temperature produces wide codes at the sensitive points rather than nonmonotonic or missing codes. Deﬁning missing codes is more difﬁcult than deﬁning nonmonotonicity. 24 (think of it as the ﬂicker between adjacent values of the last digit of a DVM). As resolutions and bandwidths become higher, the range of input over which transition noise occurs may approach, or even exceed, 1 LSB.
The desired dynamic range is DR, which deﬁnes the ﬁlter stopband attenuation. The upper transition band is f2 to 2fs Ϫ f2, and the lower is f1 to fs Ϫ f1. As in the case of base-band w ww. 35: Antialiasing ﬁlter for undersampling sampling, the antialiasing ﬁlter requirements can be relaxed by proportionally increasing the sampling frequency, but fc must also be increased so that it is always centered in the second Nyquist zone. Two key equations can be used to select the sampling frequency, fs, given the carrier frequency, fc, and the bandwidth of its signal, Δf.
25. 25 to the next lowest integer, 18. Solving Eq. 1143 MSPS. 1143 MSPS, fc ϭ 71 MHz, and NZ ϭ 18. Now assume that we desire more margin for the antialiasing ﬁlter, and we select fs to be 10 MSPS. Solving Eq. 7. 7 to the next lowest integer, giving NZ ϭ 14. Solving Eq. 519 MSPS. 519 MSPS, fc ϭ 71 MHz, and NZ ϭ 14. The above iterative process can also be carried out starting with fs and adjusting the carrier frequency to yield an integer number for NZ. 3 Data Converter AC Errors This section examines the AC errors associated with data converters.