Signal Analysis Time Frequency Scale And Structure

... Continuous to Discrete Time- Frequency- Scale Transforms 19 2.1 Continuous Transforms 20 2.2 Semi-Discrete Transforms 24 2.3 Discrete Transforms: Frames ... wavelet which defines a continuous time- frequency- scale transform Vψ Then for any σ ∈ L1 (R) such that σ(γ) > 0, CHAPTER FROM CONTINUOUS TO DISCRETE TIME- FREQUENCY- SCALE TRANSFORMS 32 γ ∈ R, ∫ ∞ ∫ −∞ ... signal fu...

Ngày tải lên: 12/10/2015, 17:36

... “Parametric time-frequency analysis and its applications in music classification,” by Y Shen et al., deals with analysis and classification of music signals Music signals are decomposed into atoms using ... on time-frequency analysis and Hermite projection method” by S Stankovi´ et al to provide a method c for temporal analysis and reconstruction of digital video seque...

Ngày tải lên: 21/06/2014, 05:20

... classification accuracy rate Since each sample is excluded from the training set in turn, the independence between the test set and the training set is maintained In a database with N examples, ... found in the appendix 3.2 Classification Scheme 3.2.1 Linear Discriminant Analysis (LDA) In this work, pattern classification is carried out using the linear discriminant analysis (LDA)...

Ngày tải lên: 21/06/2014, 08:20

... (16 1, 12 9) 1. 1 Block index 26 7 28 3 29 9 315 3 31 28 4 300 316 3 32 (16 1, 16 8) 0.9 0.8 16 × authentication block 0.7 0.6 0.5 0.4 0.3 50 10 0 15 0 20 0 25 0 300 350 400 450 500 Block index (19 2, 12 9) 26 8 (19 2, ... 10 −4 32. 89 98% 44. 41 0.0 014 28 .69 95% 41. 53 0. 010 1 19 .95 90% 38.83 0. 026 7 15 .74 80% 35.94 0.06 41 11. 93 70% 34. 41 0.0956 10 .19 60%...

Ngày tải lên: 21/06/2014, 08:20

... illustration of stationary and nonstationary blocks in a sequence of frames (box 1-stationary block, box 2-nonstationary block) Video Analysis and Reconstruction Using Time-Frequency Representations and ... 120 60 120 Time (frames) M −1 xM (t) = 60 q > 0, 3.2 Hermite Projection -Based Temporal Reconstruction of Nonstationary Pixels within the Sequence of Video Frames...

Ngày tải lên: 21/06/2014, 08:20

... [35], independent component analysis (ICA) [1, 36], and principal component analysis (PCA) [37–40] to extract time-frequency features for classification purposes or for reducing the time-frequency ... new data reduction method based on applying matching pursuit decomposition to the time-frequency domain principal components to further reduce the information from t...

Ngày tải lên: 21/06/2014, 16:20

... signal 0.5 (b) Octave distribution signal 1 Time 0.5 Octaves 10 11 12 13 (h) Figure 9: Comparison of octave distributions Signals and 2: Rock-like signals, and Signals and 4: Classical-like signals ... stage-by-stage implementation and analysis of three important audio processing tasks, namely, (1) audio compression, (2) audio classification, and (3) securing audio co...

Ngày tải lên: 21/06/2014, 16:20

... properties and advantages of watermarking in joint timefrequency domain In [15], watermark insertion and extraction are both done in time-frequency domain In the embedding process, watermark message ... provided in Section But first we will have a brief review on watermark applications in joint time-frequency domain TIME-FREQUENCY DIGITAL WATERMARKING Digital waterm...

Ngày tải lên: 22/06/2014, 23:20

... design of mode identification strategies for reconfigurable software-defined radio- based terminal His research interests are in mode identification algorithms for software-defined radio platform in a single ... Van Dyck, and A Soltanian, “Interference of bluetooth and IEEE 802.11: simulation modeling and performance evaluation,” in Proc 4th International ACM...

Ngày tải lên: 23/06/2014, 01:20

... ARRAY PROCESSING BASED ON TIME- FREQUENCY ANALYSIS AND HIGHER- ORDER STATISTICS SUWANDI RUSLI LIE (B.S.E.E and M.S.E.E., University of Wisconsin - Madison, U.S.A.) A THESIS ... a description of the signal that involves both time and frequency This method is called time- frequency (TF) analysis, which maps a signal (i.e., a one-dimensional function of time) ont...

Ngày tải lên: 11/09/2015, 14:29

... down, lying to sitting, level walking, ascending stairs and descending stairs However, in sitting, standing, and lying down detection, instead of detecting static postures, we detect stand-sit/sit-stand, ... describes the detection procedure of ADL in time frequency domain Fall detection (post impact detection) including implementation of fall notification system an...

Ngày tải lên: 14/09/2015, 18:27

... 2011 Beijing City Haidian District China The center of Beijing Fig - Location map of Beijing city and Haidian District center, and has many places of interest and famous shopping areas (Beijing Municipal ... Structure of annual and seasonal per capita water demand in Beijing City appears in Fig This contrasts with the structure of annual per capita wate...

Ngày tải lên: 05/09/2013, 10:17

... Re-examine some of the most important issues related to the experiential aspect of functional grammar Analyze the meaning and structure of a narrative based on the systemic functional analysis ... explore the meaning and structure of Torquay? But I said Turkey! as a text The analysis is based on the framework of Hallidays (1994)An Introducti...

Ngày tải lên: 07/09/2013, 13:48

... conceptualizing the impact of filters on signals As discussed in Chapter 3, there are two basic types of digital filters: FIR filters and IIR filters An FIR filter of length L can be represented ... p 5:1 :10a† !m ˆ !a !b , H(w) 1 w wa Figure 5.3 wm wb Magnitude response of bandpass filter with narrow bandwidth 188 DESIGN AND IMPLEMENTATION OF FIR...

Ngày tải lên: 23/10/2013, 22:15