analog data to digital signal ppt
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
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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
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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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Analog-to-Digital Conversion
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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 ... system 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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Real-Time Digital Signal Processing - Chapter 1: Introduction to Real-Time Digital Signal Processing
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17/10/2013, 14:15
... signal. In this section, we first discuss how to convert analog
signals into digital signals so that they can be processed using DSP hardware. The
process of changing an analog signal to a xdigital ... Processing
Signals can be divided into three categories ± continuous-time (analog) signals,
discrete-time signals, and digital signals. The signals that we encounter daily are mostly
analog signals. ... applica-
tions, the input data may already be in digital form and/or the output data may not need
to be converted to an analog signal. For example, the processed digital information may
be stored in computer...
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Real-Time Digital Signal Processing - Chapter 2: Introduction to TMS320C55x Digital Signal Processor
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19/10/2013, 23:15
... In practice, high-level language tools such
40
INTRODUCTION TO TMS320C55X DIGITAL SIGNAL PROCESSOR
2
Introduction to TMS320C55x
Digital Signal Processor
Digital signal processors with architecture ... least-significant-bit (LSB) of the data address since
data stored in memory is in word units. The 16 Mbytes memory map is shown in Figure
2.6. Data space is divided into 128 data pages (0±127). Each page ... exp2b_4.asm.
74
INTRODUCTION TO TMS320C55X DIGITAL SIGNAL PROCESSOR
are added with the contents in the accumulators AC2 and AC3, and the final results are
stored back to AC2 and AC3.
2.6 TMS320C55x...
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Tài liệu Lecture 22: Digital Transmission of Analog Data (Baseband Transmission): doc
Ngày tải lên :
09/12/2013, 16:15
... Introduction to Telecommunications, Winter 2000 Lecture-22 Digital Transmission
Digital Transmission of Analog Data (Baseband Transmission):
• Analog voice data must be translated into a series ... domain.
To get back the original analog signal we have to convert back the sampled signal to its unique analog
form. We could do it if we have taken enough samples of the original signal in ... an analog signal is converted to its digital form.
• To obtain either form of pulse modulation we start with sampling.
Sampling is the process of taking samples (amplitude) of an analog signal...
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Tài liệu DSX-3 Digital Signal Cross-Connect pptx
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10/12/2013, 18:15
... Number
Patchcord LCP to LCP 3’ 735 Cable PCH-DDXC-003
Patchcord LCP to LCP 6’ 735 Cable PCH-DDXC-006
Patchcord LCP to LCP 12’ 735 Cable PCH-DDXC-012
Cross Connect Cable LCC to LCC Dual 735 3’ XCC-CCXD-003
Cross ... Cable LCC to LCC Dual 735 6’ XCC-CCXD-006
Cross Connect Cable LCC to LCC Dual 735 12’ XCC-CCXD-012
Cross Connect Cable LCC to LCC Dual 735 15’ XCC-CCXD-015
Cross Connect Cable LCC to LCC Dual ... 6 Pack 3AC-6BB
Bulk Cable-735 12 Pack 3AC-12BB
735 LCC Connectors-100 Pack LCC-3B
LCC Insertion/Withdrawal Toolkit LCA-400004
LCC Tool Kit with Power Stripper LCA-600001-BS
O r d e r i n g I...
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Tài liệu Digital Signal Processing Handbook P69 ppt
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13/12/2013, 00:15
... the
array output vector has a correlated signal component at a different DOA, to minimize the output
powermaycause the desired signal itself to be strongly attenuated. This is the signal cancellation ... R
n
of the disturbance vector n, in general, to implement the MV beamformer it is sufficient to estimate
the array covariance matrix R using the available data z.
We discuss how to estimate R.LetT time ... the complex sensor noise vector. The noise u(t ) will be assumed to be zero
mean Gaussian with known covariance matrix σ
2
I. The goal is to estimate the signal vector s(t) using
a MMSE beamformer...
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Tài liệu Digital Signal Processing Handbook P63 ppt
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13/12/2013, 00:15
... arraysteeringvectors b(µ
i
), cf. (63.24) and (63.25). This insight enablesusto
apply only B M successive rows of W
H
M
(instead of all M rows) to the data matrix X in Eq. (63.26).
To stress the ... W
B
y
.
10
Then
apply the vec{·}-operator, and place the resulting B × 1 vector (B = B
x
· B
y
) as a column of a matrix
Y ∈ C
B×N
. The vec{·}-operator maps a B
x
× B
y
matrixtoaB × 1 vector by stacking the columns
of ... the DOAs are restricted to the interval −90
◦
<θ
i
< 90
◦
to avoid
ambiguities.
In the sequel, the d impinging signals s
i
(t), 1 ≤ i ≤ d, are combined to a column vector s(t).
Then the noise-corrupted...
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Tài liệu Digital Signal Processing Handbook P62 ppt
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13/12/2013, 00:15
... that
steering vectors are orthogonal to noise subspace eigenvectors. It further implies that because of the
orthogonality of signal and noise subspaces, spans of signal eigenvectors and steering vectors ... the eigenvector parti-
tionment into signal and noise subspaces, leads to a number of subspace-based direction finding
methods. The signal subspace contains information about where the signals are ... coherence) and has been shown
to have the same asymptotic properties as the stochastic ML method; hence, it is asymptotically
efficient for Gaussian signals (i.e., it achieves the stochastic CRB). Its behavior...
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Tài liệu Digital Signal Processing Handbook P18 pptx
Ngày tải lên :
13/12/2013, 00:15
... these cases, a linear
predictor can be used to model the signal correlations for a short block of data in such a way as to
reduce the number of bits needed to represent the signal waveform. Then, ... circuit so long as L is not too large and
the sampling period for the signals is not too short. It also requires a total of 2L memory locations
to store the L input signal samples and the L coefficient ... desired response signal d(n) consists of a sum of a broadband signal
and a nearly periodic signal, and it is desired to separate these two signals without specific knowledge
about the signals (such...
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Tài liệu Digital Signal Processing Handbook P16 pptx
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13/12/2013, 00:15
... available.
Consider a record of length N divided into two nonoverlapping segments each of length N/2.Let
KN
B
= N/2 and use the estimators such as (16.23) to obtain the estimator
S
(l)
xx
(m) of the power
spectrum ... been found
to be useful in a wide variety of signal processing tasks such as signal detection, estimation, filtering,
and classification, and in a wide variety of applications such as digital communications, ... expended on developing approaches to linear model
fitting given a single measurement record of the signal (or noisy signal) . Parsimonious parametric
models such as AR (autoregressive), MA (moving average),...
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Tài liệu Real time digital signal processing P1 pptx
Ngày tải lên :
14/12/2013, 13:15
... signal. In this section, we first discuss how to convert analog
signals into digital signals so that they can be processed using DSP hardware. The
process of changing an analog signal to a xdigital ... 0x20;
22
INTRODUCTION TO 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, ... real-
world analog signal is converted to a digital signal, processed by DSP hardware in
2
INTRODUCTION TO REAL-TIME DIGITAL SIGNAL PROCESSING
(a)
(b)
Figure 1.16 Connect probe point to a file:...
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