elastic waves in solids applications to signal processing

Ngày tải lên: 01/06/2014, 01:20

Ngày tải lên: 13/05/2014, 09:18

... generator ; with 1024±point cosine table range(0Àp) ; ; Prototype: void cos_sin(int, int *, int *) ; Entry: arg0: T0 À a (alpha) ; arg1: AR0 À pointer to cosine ; arg2: AR1 À pointer to sine .def ... of dual tones can be implemented by using two sinewave generators connected in parallel. Each sinewave generator can be realized using the polynomial approximation technique introduced in Section ... sine .def _cos_sin .ref tab_0_PI .sect "cos_sin" SINEWAVE GENERATORS AND APPLICATIONS 401 9 Practical DSP Applications in Communications There are many DSP applications that are used in our...

Ngày tải lên: 06/11/2013, 18:15

... 5,up to 35*/ { gain = gain_parameter; /*vary gain of sine*/ } FIGURE 1.6. GEL file to slide through different gain values in the sine generation program (gain.gel). FIGURE 1.7. Slider window ... generated has increased. Press the up-arrow key again to continue increasing the slider, incrementing by 5 up to 30. The amplitude of the sine wave should be about 2.5V p-p with a gain value set ... Software Pipelining 98 3.20 Constraints 99 3.20.1 Memory Constraints 99 3.20.2 Cross-Path Constraints 99 3.20.3 Load/Store Constraints 100 3.20.4 Pipelining Effects with More Than One EP within an FP...

Ngày tải lên: 15/03/2014, 17:20

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Ngày tải lên: 21/06/2014, 22:20

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Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 22:20

... 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 ... science and engineering is done, and there is no better example of this than Digital Signal Processing. In the early 1980s, DSP was taught as a graduate level course in electrical engineering. A decade ... person making the application. Extensive and detailed testing is essential where incorrect functioning could result in personal injury or damage to property. The material in this book is intended...

Ngày tải lên: 13/09/2012, 10:21

... Sons, Inc. 32 x CONTENTS 9.1.7 Control Flow 402 9.1.8 Edit Window and M-file 403 9.2 Signal Processing Toolbox 405 9.2.1 List of Functions in Signal Processing Toolbox 406 References 414 Index ... shown in Figure 1.16; if so, what are the advantages of digital signal processing instead of analog signal processing, even though digital signal processing requires more circuits compared to analog ... purpose of signal processing is to modify the given signal such that the quality of information is improved in some well-defined meaning. For example, in mixing consoles for recording music, the...

Ngày tải lên: 13/09/2012, 10:21

... biomed- ical applications is staggering. Included are X-ray machines, MRI, PET scanning, bone scanning, CT scanning, ultrasound imaging, fetal monitoring, patient moni- toring, and ECG and EEC mapping. ... by the input signals. This also leads us to develop methods for designing these systems such that the information contained in the input signals is improved. We define a continuous-time signal ... limitations in digital signal processing in comparison with analog signal processing. By looking at the two circuit config- urations in Figures 1.16 and 1.17, it is obvious that the digital signal...

Ngày tải lên: 29/09/2013, 21:20

... sineTable[BUF_SIZE] {0x0000,0x000f,0x001e,0x002d,0x003a,0x0046,0x0050,0x0059, 0x005f,0x0062,0x0063,0x0062,0x005f,0x0059,0x0050,0x0046, 0x003a,0x002d,0x001e,0x000f,0x0000,0xfff1,0xffe2,0xffd3, 0xffc6,0xffba,0xffb0,0xffa7,0xffa1,0xff9e,0xff9d,0xff9e, 0xffa1,0xffa7,0xffb0,0xffba,0xffc6,0xffd3,0xffe2,0xfff1 }; int in_ buffer[BUF_SIZE]; int out_buffer[BUF_SIZE]; int Gain; void main() { int i,j; Gain  0x20; 22 INTRODUCTION TO REAL-TIME DIGITAL SIGNAL PROCESSING Table 1.3 Linker command ... ability to follow changes in the input signal is limited by its internal clock rate, so that it may be slow to respond to sudden changes in the input signal. The dual-slope ADC uses an integrator ... the C55x tools should be set up during the CCS installation process. We will need to add search paths in order to include files and libraries that are not included in the C55x tools directories,...

Ngày tải lên: 17/10/2013, 14:15

... direct, indirect, and absolute addressing modes. In the following experiment, we will write a subroutine int exp2b_3(int *Ai, int *Xi) to perform the dot product using indirect addressing mode, ... is passed to the calling function by T0. 5. Write an assembly routine int exp2b_4(int *Ai, int *Xi) using the indirect addressing mode in conjunction with parallel instructions and repeat instructions to ... (Electronic) 4. The final result after left shifting, rounding, and maybe saturation, is stored into the data memory pointed at by the pointer AR1. 5. Pointer AR1 is automatically incremented by 1. 2.6.4...

Ngày tải lên: 19/10/2013, 23:15

... A simple way to derive this is by setting X 0 to be the top left 2 × 2 minor of the matrix with x j entries in the above equation, X 1 to be its bottom left 2 × 2 minor, and observing that R  X 0 −X 1 X 1 X 0  R −1 =  ρ( ... A(X) are linear combinations of n indeterminates x 1 , , x n and y is a vector of n indeterminates y 1 , , y n . When one factor is a fixed element in an extension field, the entries in A(X) are ... important in complexity theory. (Historically, in the early days multiplications were indeed much more expensive than additions.) Algebras of polynomials are important in signal processing; filtering...

Ngày tải lên: 25/10/2013, 02:15

... of data samples with an N-point FFT to obtain the complex array X[N]. ± Multiply H and X in frequency domain to obtain Y. ± Perform N-point IFFT to find the time-domain filtered sequence. ± Add ... a saving in computation when N is large after only one stage of splitting signals into even and odd sequences. If we continue with this process, we can break up the single N-point DFT into log 2 N ... spectrum of a signal of length L can be computed using an N-point FFT. If L < N, we must increase the signal length from L to N by appending N À L zero samples to the tail of the signal. To compute...

Ngày tải lên: 28/10/2013, 05:15