the essence of digital signal processing

... Is the amplifier a linear system or is it a nonlinear system? (b) What is the gain of the amplifier? (c) Find the average power of the output signal (d) What is the total harmonic distortion of ... Fundamentals of Digital Signal Processing Using MATLAB 2nd Edition by Sc Full file at https://TestbankDirect.eu/ 1.5 If a real analog signal xa (t) is square integrable, then the energy that the signal ... Fundamentals of Digital Signal Processing Using MATLAB 2nd Edition by Sc Full file at https://TestbankDirect.eu/ 1.8 Show that the spectrum of a causal signal xa(t) can be obtained from the Laplace

Ngày tải lên: 20/08/2020, 12:02

... ? ?The Context    Representative of computationally intensive class of applications  datapath oriented and arithmetic oriented Increasingly large use of FPGAs for DSP  multimedia signal processing, ... A Survey of Logic Block Architectures For Digital Signal Processing Applications Presentation Outline  Considerations in Logic Block ... Characterize the application domain Determine a balance b/w flexibilty vs efficiency Tune the architecture according Categorizing the “Computation” Control  Random Logic Implementation  Datapath  Processing

Ngày tải lên: 06/06/2018, 19:20

... The Scientist and Engineer's Guide to Digital Signal Processing Second Edition Be sure to visit the book’s website at: www.DSPguide.com The Scientist and Engineer's Guide to Digital Signal Processing ... 570 The Family of Fourier Transforms 575 Why the Complex Fourier Transform is Used 577 Chapter 32 The Laplace Transform 581 The Nature of the s-Domain 581 Strategy of the Laplace ... by another factor of one-thousand in the next 15 years This tremendous power has changed the way science and engineering is done, and there is no better example of this than Digital Signal Processing

Ngày tải lên: 13/09/2012, 10:21

... statistical sense, the signal within each block completely. It is composed of the eigenvectors of the correlation matrix of the signal. This means that one either has to know the signal statistics ... fully exploit the correlation. 2. Overlapping basis functions: The length of the basis functions and the degree of overlap are important parameters. The issue of reversibility of the system becomes ... In the encoder, the input signal x is represented by the bit-stream b Q is the quantizer and Q−1 the dequantizer, but QQ−1 = 1, except for the case of infinite resolution in the quantizer The

Ngày tải lên: 17/10/2013, 11:15

... variance of the roundoff. If there is more than one source of roundoff error in the filter, it is assumed that the errors are uncorrelated so the output noise variance is simply the sum of the contributions ... estimates of the output roundoff noise that are close to the noise actually observed for other input signals. Another assumption that will be made in calculating roundoff noise is that the product of ... roundoff takes place to the filter output, the contribution of that roundoff to the variance (mean-square value) of the output roundoff noise is given by (3.25) with σ 2 x replaced with the variance

Ngày tải lên: 17/10/2013, 11:15

... relevant to the needs of the engineering community and that will keep them up-to-date in the DSP field. A task of this magnitude was only possible through the cooperation of many of the foremost ... spectrum of the CT signal and the spectrum of the DT signal that results First, c 1999 by CRC Press... the (odd) sine terms, and b0 is the DC level of the signal Therefore, if it can be determined ... discussion assumes that the signal s(t) is real-valued for the sake of simplifying the discussion However, all results are valid for complex signals, although the details of the theory will become

Ngày tải lên: 17/10/2013, 12:15

... 1.1, the input signal to DSP hardware may be a digital signal from other DSP systems In this case, the sampling rate of digital signals from other digital systems must be known The signal processing ... convenience Therefore we use the term `discrete-time' and `digital' interchangeably Digital signal processing (DSP) is concerned with the digital representation of signals and the use of digital ... a speech signal is much higher than kHz Out -of- band signal components at the input of an ADC can become in-band signals after conversion because of the folding over of the spectrum of signals

Ngày tải lên: 17/10/2013, 14:15

... in the illustration, which results in a stationary image of the object on the retina. If the output field sampling frequency exceeds the cutoff temporal frequency of the human visual system, 1 the ... de-interlacing of the signal The implication of GST is that it is possible to perfectly reconstruct a signal sampled at 1/n times the Nyquist rate if n independent sets of samples describe the signal ... estimate at the next sub-band, which contains higher frequencies, etc At the top of the pyramid, the signal is strongly prefiltered and sub-sampled The bandwidth of the filter increases and the sub-sampling

Ngày tải lên: 19/10/2013, 18:15

... denote the kernel and support of the operator D, respectively. The kernel d(m 1 ,m 2 ) is the impulse response of the blurring system, often called the point spread function (PSF). In case of space-variant ... aspect of the ME approach is that the nonnegativity constraint is implicitly imposed on the solution because the entropy is defined in terms of the logarithm of the intensity. Frieden was the first ... system of nonlinear equations. The number of equations and unknowns are on the order of the number of pixels in the image. The formulation proposed by Gull and Daniell [42] can be viewed as another

Ngày tải lên: 19/10/2013, 18:15

... negative signal to subtract from the input signal The net effect of the feedback loop is to keep the output of the integrator small so that the output digits always track the amplitudes of the ... sampled analog signal is converted to a digitally coded signal. The digital signal is then applied to c  1999 by CRC Press LLC the digital signal processing( DSP) system where the desired DSP ... is a function of the desired accuracy, bandwidth that is required, and the cost of the system. Figure 5.1 shows the basic elements of a digital signal processing system. The analog signal is first

Ngày tải lên: 19/10/2013, 18:15

... Change of Variables 4.7 An Extended Example: HDTV-to-SDTV Conversion 4.8 Conclusions References Appendix A.1 Proof of Theorem 4.3 A.2 Proof of Theorem 4.5 A.3 Proof of Theorem 4.6 A.4 Proof of Theorem ... that the lattice L1 is not a sublattice of the L2 This has the consequence that the extraction of an SDTV signal from an HDTV signal is not simply a question of subsampling the HDTV signal; ... Sampling and Periodizing One of the most important issues in the sampling of functions concerns the relationship between the CSFT of the original function and the DSFT of a sampled version. In this

Ngày tải lên: 19/10/2013, 18:15

... to make recordings of the output signal of the device under test and the reference signal (input signal) at the entrance of the ear of the subjects and use these signals in the perceptual evaluation ... difference between the density functions of the input and the output therefore does not represent the loudness of the noise but the compressed loudness of the noise The relationship between the objective ... the long window type The right half has the value one for 1/3 of the length and the shape of the right half of a short window for 1/3 of the length The remaining 1/3 of the window is zero Thus,...

Ngày tải lên: 22/03/2014, 23:20

... Initial value theorem x(0) limsAr(s) b Final value theorem x(oo) lim sX(s) s-*0 " Re[w] - c lies to the right of the poles of X} (w) and to the left of the poles of X2(s — w) h The poles of sX(s) ... terms of the series give a fairly accurate approximation to the waveform A disadvantage is the overshoot, or Gibbs phenomenon, at the points of discontinuity of the waveform Further discussion of ... frequencies of and Hz There is no chance of mistaking one of these analog waveforms for the other However, when they are sampled every ^ s, the situation changes dramatically because the cosine...

Ngày tải lên: 18/04/2014, 11:00

... “Applications of Digital Signal Processing being published by InTech The field of digital signal processing is at the heart of communications, biomedicine, defense applications, and so on The field ... in the middle of the link, an optical phase conjugator inverts the frequency spectrum and phase of the distorted signals caused by chromatic dispersion As the signals propagate to the end of the ... combination of methods are presented A multi-tone NBI (an interfering signal composed of five sine-waves) is added to the OFDM signal One of the NBI tones is 10 dB stronger than the others The NBI...

Ngày tải lên: 28/06/2014, 08:20

... “Applications of Digital Signal Processing being published by InTech The field of digital signal processing is at the heart of communications, biomedicine, defense applications, and so on The field ... in the middle of the link, an optical phase conjugator inverts the frequency spectrum and phase of the distorted signals caused by chromatic dispersion As the signals propagate to the end of the ... combination of methods are presented A multi-tone NBI (an interfering signal composed of five sine-waves) is added to the OFDM signal One of the NBI tones is 10 dB stronger than the others The NBI...

Ngày tải lên: 28/06/2014, 14:20

... coefficients of the FIR filter This equation describes the output of the FIR filter as a convolution sum of the input with the impulse response of the system The transfer function of the FIR filter ... steady-state response of the filter Therefore they are called the steady-state specifications The speed of the response concerns the rate at which the filter reaches the steady-state response The transient ... and the overshoot shows if the output exceeds the desired output value The rise time, the settling time, and the overshoot specify the transient response of the filter in the time domain A digital...

Ngày tải lên: 23/10/2013, 22:15

... Scaling the magnitude response of the digital filter to approximate magnitude response of the analog filter requires the multiplication of H(z) by T The transfer function of the impulse-invariant digital ... …6:1:9† The roots of N(s) are the zeros of the transfer function H(s), while the roots of D(s) are the poles Example 6.2: The input signal x…t† ˆ eÀ2t u…t† is applied to an LTI system, and the output ... with the parameters The variation of any parameter in the direct-form realization will affect all the poles of H(z) Therefore the pole sensitivity of a parallel realization is less than that of the...

Ngày tải lên: 28/10/2013, 05:15

... “opcode” of the instruction The opcode is the unique identifier of the instruction The next four bits, 1000, are the shift of the operand Then there is one bit (zero in this case) to signal that the ... simplified form the key features of the TMS320C25 The major parts of the DSP processor are the memory, the Central Processing Unit (CPU), the ports, and the peripherals Each of these parts will be examined ... ALU of the TMS320C30 The heart of the TMS320C30 is the CPU consisting, primarily, of the multiplier and the ALU The CPU configuration is shown in Fig 77.16 which depicts the multiplier and the...

Ngày tải lên: 25/12/2013, 06:16

... in parentheses This first line distinguishes the function file from a script file The name of the function should match the name of the M-file If there is a conflict, it is the name of the M-file ... time-invariant system Let x(n) be the input sequence and y(n) be the output sequence of the system If h(n) is the impulse response of the system, the output signal of the system can be expressed as ... will read the data from the ASCII file with the name xn.dat in the disk into an array with the name xn To load the file xn.bin stored in the binary format into the array xn, we have to use the following...

Ngày tải lên: 25/01/2014, 19:20

... where the value to the right of the equal sign is assigned to the variable on the left The general form of the assignment statement is identifier ˆ expression; 473 A SIMPLE C PROGRAM where the ... and then the new value is used to evaluate the rest of the expression If the increment or decrement operator is in a postfix position, the old value of the identifier is used to evaluate the ... to specify the types of numbers that will be contained in variables There are several types of data used depending on the format in which the numbers are stored and the accuracy of the data In...

Ngày tải lên: 25/01/2014, 19:20