analog data to digital signal conversion ppt
The Scientist and Engineer''''s Guide to Digital Signal Processing pptx
Ngày tải lên :
31/03/2014, 22:20
... removed with a digital low-pass filter. After
conversion to an analog signal through a DAC, a simple RC network is all that
is required to produce the final voice signal.
Multirate data conversion ... method for digital -to -analog conversion is to pull the
samples from memory and convert them into an impulse train. This is
The Scientist and Engineer's Guide to Digital Signal Processing60
pass ... the analog signal contains
frequencies greater than one-half the sampling rate, that is, we have proven
the sampling theorem.
Digital -to -Analog Conversion
In theory, the simplest method for digital -to- analog...
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The Scientist and Engineer's Guide to Digital Signal Processing Second Edition
Ngày tải lên :
13/09/2012, 10:21
... 35
The Sampling Theorem 39
Digital -to -Analog Conversion 44
Analog Filters for Data Conversion 48
Selecting the Antialias Filter 55
Multirate Data Conversion 58
Single Bit Data Conversion 60
Chapter ... Continuous Signal Processing 243
DIGITAL FILTERS
Chapter 14. Introduction to Digital Filters 261
Chapter 15. Moving Average Filters 277
Chapter 16. Windowed-Sinc Filters 285
Chapter 17. Custom Filters ... this book. If you
do not wish to be bound by the above, you may return this book to the publisher for a full refund.
The Scientist and Engineer's Guide to
Digital Signal Processing
Second Edition
by
Steven...
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Introduction to Digital Signal Processing and Filter Design
Ngày tải lên :
13/09/2012, 10:21
... can be considered a bandlimited signal. It is this signal that
is sampled and converted to a discrete-time signal and coded to a digital signal
by the analog- to- digital converter (ADC) that was ... sinusoidal
signal, which is a continuous-time signal, and a discrete-time signal. We dis-
cussed the basic procedure followed to sample and quantize an analog signal
ANALOG AND DIGITAL SIGNAL PROCESSING
25
different ... ability to compress the data by
a significant factor and receive the input signal at lower cost and very good
quality. To point out the power of digital signal processing theory and the
digital signal...
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Introduction to Digital Signal Processing and Filter Design - Introduction
Ngày tải lên :
29/09/2013, 21:20
... ability to compress the data by
a significant factor and receive the input signal at lower cost and very good
quality. To point out the power of digital signal processing theory and the
digital signal ... manufacture of
analog filters, we may have to tune each of them to correct for manufacturing
tolerances, but there is no such need to test the accuracy of the wordlength in
digital filters.
Data on digital ... the
phone to the BTS in the next cell, which may offer a stronger signal. If no such
cell is nearby, the caller is cut off (i.e., will not be able to receive or to send
ANALOG AND DIGITAL SIGNAL...
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Tài liệu An Introduction to Statistical Signal Processing ppt
Ngày tải lên :
16/01/2014, 16:33
... processes to produce other processes.
The intentional operation on a signal produced by one process, an “input
signal, ” to produce a new signal, an “output signal, ” is generally referred
to as signal ... a digital link,
noise in the digital link can cause errors in reconstructed bits, the
bits can then be used to reconstruct the original signal within some
fidelity. All of these operations on signals ... are
virtually buried in noise added to them on route and in the front
end amplifiers of the powerful receivers used to retrieve the signals.
By suitably preparing the signals prior to transmission, by suitable
filtering...
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Tài liệu Real Time Digital Signal Processing pptx
Ngày tải lên :
18/01/2014, 20:20
... REAL-TIME DIGITAL SIGNAL PROCESSING
1
Introduction to Real-Time
Digital Signal Processing
Signals can be divided into three categories ± continuous-time (analog) signals,
discrete-time signals, and digital ... the signal is zero except at the sampling instants
t nT.
In order to represent an analog signal xt by a discrete-time signal xnT accurately,
two conditions must be met:
1. The analog signal, ... `discrete-time' and `digital& apos; inter-
changeably.
Digital signal processing (DSP) is concerned with the digital representation of signals
and the use of digital hardware to analyze, modify,...
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High-Performance, 16-bit Digital Signal Controllers ppt
Ngày tải lên :
06/03/2014, 22:20
... programming data. Prior to
the actual programming operation, the write data must
be loaded into the panel write latches. The data to be
programmed into the panel is loaded in sequential
order into the ... instructions store either a trun-
cated (SAC) or rounded (SAC.R) version of the contents
of the target accumulator to data memory via the X bus
(subject to data saturation, see Section 2.4.2.4 Data
Space ... & Table
Data Access
Control Block
Stack
Control
Logic
Loop
Control
Logic
Data LatchData Latch
Y Data
(1 Kbyte)
RAM
X Data
(1 Kbyte)
RAM
Address
Latch
Address
Latch
Control Signals
to Various...
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Báo cáo khoa học: Utilizing logical relationships in genomic data to decipher cellular processes pptx
Ngày tải lên :
07/03/2014, 21:20
... (referred
to hereafter as an information coefficient) comparing
either the logically combined vectors or individual vec-
tors A or B with vector C, conditioned on the infor-
mation available in vector ... suc-
cessfully to other types of genomic data? We analyzed
logical relationships within microarray expression data,
with attention to identifying logical combinations of
proteins that led directly to the ... has
previously been shown to be under-expressed in amelo-
blastoma tumors while CDK5R2 has been implicated
in mediating apoptosis in human glioblastoma multi-
form cells. Together these observations...
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Interactive Data to Improve Financial Reporting ppt
Ngày tải lên :
29/03/2014, 18:20
... filers is intended to permit
companies to plan and implement their data tagging with the benefit of the experience of year
one filers. It also is intended to enable us to monitor implementation ... information to companies
and investors, and that mandated interactive data use would provide the incentives to drive
sufficient investment in software to enable widespread adoption of interactive data.
100
... data to cause them to reflect the same
information.
226
2. Use of Technology to Detect Errors
Complete, accurate, and reliable financial statements and other disclosures are essential
to...
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Analog-to-Digital Conversion
Ngày tải lên :
29/09/2013, 20:20
... to an analog signal for people to hear. The
process to convert digital signals to analog signals is completed by a DAC. The most commonly
used technique to convert digital signals to analog signals ... into
FIGURE 3.4: Quantization.
ANALOG- TO- DIGITAL CONVERSION 55
3.3.2 Integration
The integration technique uses an integrator, a comparator, and a controller to convert analog
signals to digital ... microcontroller
MSB
LSB
Comparators
2.5 v
1/2
1/4
1/8
1/2
n
Adder
Quantized
Analog
Signal
Scalar
Multipliers
FIGURE 3.11: A summation method to convert a digital signal into a quantized analog signal.
Comparators are...
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