difference between digital signal and digital data

... next-generation products and services. And as networks migrate and expand to include more complex services, reliability and flexibility become even more vital to their success. That is why digital system ... 81 Individual Tools for LCC Connector Installation. 82 Index 83 DSX-3 Digital Signal Cross-Connect and Digital Signal Interconnect Products 3rd Edition COPPER CONNECTIVITY SOLUTIONS 8 / ... demultiplexes, and routes the signal. Operators have three accepted methods of routing this signal: direct connect, interconnect, and cross-connect via a DSX. Direct connection and interconnection...

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... next-generation products and services. And as networks migrate and expand to include more complex services, reliability and flexibility become even more vital to their success. That is why digital system ... patterns change and demands on the network grow. At DS1 (1.544 Mbps) digital signal rates, DSX equipment connects NEs such as office repeaters, digital switches, channel banks, digital loop carriers, ... cable management and the basic framework to securely support valuable network equipment and allow efficient and organized cable routing. Panels and chassis are selected and installed separately...

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... Computers and Digital Signal Processing 31 Converting Analog to Digital Signals and Vice Versa 3 Converting Analog to Digital Signals and Vice Versa 3.1 A Typical DSP System Most of the signals ... alt="" Personal Computers and Digital Signal Processing 8 Notes Personal Computers and Digital Signal Processing 42 Converting Analog to Digital Signals and Vice Versa us a weighted ... Computers and Digital Signal Processing 35 Converting Analog to Digital Signals and Vice Versa A signal with no frequency component above a certain maximum frequency is known as a bandlimited signal. ...

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... 11 Mean and Standard Deviation 13 Signal vs. Underlying Process 17 The Histogram, Pmf and Pdf 19 The Normal Distribution 26 Digital Noise Generation 29 Precision and Accuracy 32 Chapter 3. ADC and ... Warning and Disclaimer This book presents the fundamentals of Digital Signal Processing using examples from common science and engineering problems. While the author believes that the concepts and data ... 355 Sound Quality vs. Data Rate 358 High Fidelity Audio 359 Companding 362 Speech Synthesis and Recognition 364 Nonlinear Audio Processing 368 Chapter 23. Image Formation and Display 373 Digital Image...

Ngày tải lên: 13/09/2012, 10:21

... that it 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 ... 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 processors ... 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...

Ngày tải lên: 13/09/2012, 10:21

... and the output of the quantizer when coded to its equivalent binary representation, is called the digital signal. Although there is a difference between the discrete-time signal and digital signal, ... 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 processors ... continuous-time signal, and a discrete-time signal. We dis- cussed the basic procedure followed to sample and quantize an analog signal REFERENCES 31 6. R. D. Strum and D. E. Kirk, Discrete Systems and Digital...

Ngày tải lên: 29/09/2013, 21:20

... I/O difference equation of the digital system expressed as ynbxnÀayn À 1, 3:2:16 where each output signal yn is dependent on the current input signal xn and the previous output signal ... throughout the book will be defined in this chapter. 3.1 Digital Signals and Systems In this section, we will define some widely used digital signals and simple DSP systems. The purpose of this section ... background for understanding the materials presented in subsequent sections and later chapters. 3.1.1 Elementary Digital Signals There are several ways to describe signals. For example, signals encountered...

Ngày tải lên: 19/10/2013, 23:15

... non-causal and hence not physically realizable. Instead we must compromise and accept a more gradual cutoff between passband and stopband, as well as specify a transition band between the passband and ... passband, the magnitude response has a peak deviation d p and in the stopband, it has a maximum deviation d s . The frequencies ! p and ! s are the passband edge (cut-off) frequency and the stopband ... passband and stopband ripples, the area under 208 DESIGN AND IMPLEMENTATION OF FIR FILTERS 5.2.2 Some Simple FIR Filters A multiband filter has more than one passband and stopband. A special case...

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... monotonically decreas- ing in both the passband and the stopband. The Butterworth filter has a completely flat magnitude response over the passband and the stopband. It is often referred to as the `maximally ... 6.7. Example 6.13: Design a bandpass filter with passband of 100 Hz to 200 Hz and the sampling rate is 1 kHz. The passband ripple is less than 3 dB and the stopband attenuation is at least 30 ... for lowpass and bandpass filters, but not for highpass and bandstop filters. MATLAB supports the design of impulse invariant digital filters through the func- tion impinvar in the Signal Processing...

Ngày tải lên: 28/10/2013, 05:15

... increase the signal length from L to N by appending N À L zero samples to the tail of the signal. To compute the spectrum of an analog signal digitally, the signal is sampled first and then transformed ... sampled data may not be always the true DFT of the signal from which the data was obtained. This is because the signal is continuous, whereas the data set is truncated at its beginning and end. ... Prentice- Hall, 1983. [3] V. K. Ingle and J. G. Proakis, Digital Signal Processing Using MATLAB V.4, Boston: PWS Publishing, 1997. [4] L. B. Jackson, Digital Filters and Signal Processing, 2nd Ed., Boston:...

Ngày tải lên: 28/10/2013, 05:15

... frequency bands: band 1 is low-pass and covers 0 Hz to 80 Hz; band 2 is band-pass and covers 80 Hz to 3 kHz; band 3 is high-pass and covers above 3 kHz; and band 4 is also high-pass and covers ... Figure 1.9. 1.3.5 Digital Coding of Audio Signals In digital audio, the memory required to record a signal, the bandwidth required for signal transmission and the signal to–quantisation–noise ... A LEXANDER S.T. (1986) Adaptive Signal Processing Theory and Applications. Springer-Verlag, New York. D AVENPORT W.B. and R OOT W.L. (1958) An Introduction to the Theory of Random Signals and...

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