discrete tomography

... functions. A 32 point DFT has 17 discrete cosine waves and 17 discrete sine waves for its basis functions. Eight of these are shown in this figure. These are discrete signals; the continuous lines ... a periodic fashion. This type of Fourier transform is called the Discrete Time Fourier Transform. Periodic -Discrete These are discrete signals that repeat themselves in a periodic f...

Ngày tải lên: 13/09/2012, 09:49

... Ivyspring International Publisher. All rights reserved Short Communication Optical Coherence Tomography in ocular toxoplasmosis Dominique Monnet, Kristel Averous, Emmanuelle Delair, Antoine ... d'Ophtalmologie - Hôpital Cochin, Paris (France) Published: 2009.03.19 Optical Coherence Tomography (OCT) is now a method of choice to asses conditions such as macular holes, diabet...

Ngày tải lên: 03/11/2012, 11:01

Ngày tải lên: 26/04/2013, 08:36

... LPF x m x m1 x m2 Output Hình 1.12 Sơ đồ diều chế CAP Điều chế đa tần rời rạc DMT Điều chế đa tần rời rạc DMT ( Discrete MultiTone Modulation ) là phơng pháp điều chế đa sóng mang trong đó băng tần sử dụng đợc ... nghiên cứu ở chơng sau. Một biến thể của DMT là phơng pháp điều chế đa tần sóng rời rạc DMWT ( Discrete Multiwavelet MultiTone Modulation ) trong đó toán tử Fourier đ...

Ngày tải lên: 26/04/2013, 08:36

... inclined discrete ribs. They reported that a five- piece -discrete transverse ribs shows 10-15% higher heat transfer coefficient as compared to continuous transverse ribs, whereas inclined discrete ... transfer rate than that of the transverse discrete ribs. Hu et al. [8] investigated the effect of inclined discrete rib with and without groove and reported that discrete rib arran...

Ngày tải lên: 05/09/2013, 16:10

... continuous time, discrete amplitude signal. In contrast, a discrete time signal x(n) has Z as its domain. A discrete time, continuous amplitude signal has R as its range. A discrete time, discrete amplitude ... range. Here, the focus is on discrete time signals. Quantization is the process of approximating any discrete time, continuous amplitude signal into one of a finite set of...

Ngày tải lên: 18/10/2013, 04:15

... Gabor T. Herman. “Algorithms for Computed Tomography 2000 CRC Press LLC. <http://www.engnetbase.com>. example, as reported in [12], ... [2]. References [1] Herman, G.T., Image Reconstruction from Projections: The Fundamentals of Computerized Tomography, Academic Press, New York, 1980. [2] Herman, G.T., Image reconstruction from projections, J. ... 3–18, 1995. [3] Herman, G.T., Tuy,...

Ngày tải lên: 16/12/2013, 04:15

... Nonperiodic Discrete Signals 3 1.4 The Unit Step Discrete Signal 4 1.5 The Impulse Discrete Signal 6 1.6 The Ramp Discrete Signal 6 1.7 The Real Exponential Discrete Signal 7 1.8 The Sinusoidal Discrete ... 361 7 The Discrete Fourier Transform and Discrete Systems 365 7.1 Introduction 365 7.2 The Discrete Fourier Transform and the Finite-Duration Discrete Signals 366 7.3 P...

Ngày tải lên: 01/01/2014, 21:13

... -10- 10 -11- 11 -12- 12 -13- 13 -14- 14 -15- 15 -16- 16 -17- 17 -18- 18 - 19- 19 Khoa - bộ môn chẩn đoán hình ảnh KỸ THUẬT CHỤP CẮT LỚP VI TÍNH (COMPUTED TOMOGRAPHY) THƯỜNG ỨNG DỤNG TRONG LÂM SÀNG HOÀNG MINH LỢI Huế, tháng 12 - 2006 -20- 20 -21- 21 -22- 22 -23- 23 -24- 24 -25- 25 -26- 26 -27- 27 -28- 28 - 29- 29 -2- 2 -30- 30 -31- 31

Ngày tải lên: 09/02/2014, 22:56

... linear discrete- time systems with uncertainty was presented. When the parameter uncertainty equals zero, the discrete- time state feedback mixed QGC/H ∞ control problem reduces to the discrete- time ... define the discrete- time state feedback stochastic mixed LQR/H ∞ control problem as follows: Discrete- time state feedback stochastic mixed LQR/H ∞ control problem: Given the linear...

Ngày tải lên: 14/02/2014, 09:20