dual tone multi frequency signal detection

Ngày tải lên: 21/06/2014, 08:20

Ngày tải lên: 22/06/2014, 23:20

... Rake-based multi- user detection technique is proposed for quasi-synchronous MIMO systems. The first step separates the multi- user multi- path signal vector into multi- user single-path signal vectors ... MIMO-OFDM system 1.3 Semi-blind signal detection Traditional signal detection techniques use training sequences to estimate the channel as the first step. Signal detection then follows equalization. ... signals are combined using the Rake receiver principle for multi- user detection. It is shown that the output of the combiner yields the estimated transmitted signals. It follows that the multi- user...

Ngày tải lên: 20/11/2012, 11:36

... The Linear Multivariate Gaussian Model 13.5 Temporal Signals in Gaussian Noise Signal Detection: Known Gains • Signal Detection: Unknown Gains • Signal Detection: Random Gains • Signal Detection: Single ... Detection: Single Signal 13.6 Spatio-Temporal Signals Detection: Known Gains and Known Spatial Covariance • Detection: Unknown Gains andUnknown SpatialCovariance 13.7 Signal Classification Classifying Individual ... LLC 13 Signal Detection and Classification Alfred Hero University of Michigan 13.1 Introduction 13.2 Signal Detection TheROCCurve • DetectorDesignStrategies • LikelihoodRatio Test 13.3 Signal...

Ngày tải lên: 05/11/2013, 17:20

... The Linear Multivariate Gaussian Model 13.5 Temporal Signals in Gaussian Noise Signal Detection: Known Gains • Signal Detection: Unknown Gains • Signal Detection: Random Gains • Signal Detection: Single ... Detection: Single Signal 13.6 Spatio-Temporal Signals Detection: Known Gains and Known Spatial Covariance • Detection: Unknown Gains andUnknown SpatialCovariance 13.7 Signal Classification Classifying Individual ... LLC 13 Signal Detection and Classification Alfred Hero University of Michigan 13.1 Introduction 13.2 Signal Detection TheROCCurve • DetectorDesignStrategies • LikelihoodRatio Test 13.3 Signal...

Ngày tải lên: 05/11/2013, 17:20

... The Linear Multivariate Gaussian Model 13.5 Temporal Signals in Gaussian Noise Signal Detection: Known Gains • Signal Detection: Unknown Gains • Signal Detection: Random Gains • Signal Detection: Single ... Detection: Single Signal 13.6 Spatio-Temporal Signals Detection: Known Gains and Known Spatial Covariance • Detection: Unknown Gains andUnknown SpatialCovariance 13.7 Signal Classification Classifying Individual ... LLC 13 Signal Detection and Classification Alfred Hero University of Michigan 13.1 Introduction 13.2 Signal Detection TheROCCurve • DetectorDesignStrategies • LikelihoodRatio Test 13.3 Signal...

Ngày tải lên: 08/11/2013, 12:15

... 9 4 (b) Signal Detection and Estimation Second Edition Mourad Barkat a r tec hh ouse . co m Signal Detection and Estimation x ii Reference 532 Selected Bibliography 532 Chapter 10 Detection ... Binary Detection with Unwanted Parameters 580 10.6.1 Signals with Random Phase 583 10.6.2 Signals with Random Phase and Amplitude 595 10.6.3 Signals with Random Parameters 598 10.7 Binary Detection ... Estimation 533 10.1 Introduction 533 10.2 Binary Detection 534 10.2.1 Simple Binary Detection 534 10.2.2 General Binary Detection 543 10.3 M-ary Detection 556 10.3.1 Correlation Receiver 557...

Ngày tải lên: 01/06/2014, 10:57

... like this: Trial Interval 1 Interval 2 1 Signal: x = 3 Noise: x = 1 2 Signal: x = 6 Noise: x = 4 3 Noise: x = 3 Signal: x = 4 4 Signal: x = 4 Noise: x = 4 and so on. When ... High certainty signal to low certainty signal Category 1 2 3 4 5 P(S s) 059 0.77 0.84 093 1.00 P(S 001 005 010 0.34 1 00 29 A PRIMER OF SIGNAL DETECTION THEORY ... were 288 signal and 288 noise trials and the observer gave his responses on a five-point confidence scale Observer's response High certainty signal to low certainty signal...

Ngày tải lên: 03/06/2014, 00:46

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 22/06/2014, 19:20

... electrocardiogram signals are locally recorded, but remotely analyzed at a central US data facility, due to the size and complexity of the digital signal process- ing, the analysis by multiple mathematic ... DFT signal averaging are performed on the data from the two ECG leads during the 82 second sam- pling period followed by signal averaging. The final averaged digital data, obtained from multiple ... Two-Lead, Computerized, Resting ECG Signal Analysis De- vice, the MultiFunction-CardioGram sm or MCG (a.k.a. 3DMP), to Quantitative Coronary Angiography for the Detection of Relevant Coronary Artery...

Ngày tải lên: 03/11/2012, 10:58

... is the time-domain signal x(n) 158 FREQUENCY ANALYSIS 4 Frequency Analysis Frequency analysis of any given signal involves the transformation of a time-domain signal into its frequency components. ... aperiodic signals,the frequency analysis of discrete-time aperiodic signals involves the Fourier transform of the time-domain signal. In previous sections,we have used the z-transform to obtain the frequency ... describing a signal in the frequency domain exists because signal processing is generally accomplished using systems that are described in terms of frequency response. Converting the time-domain signals...

Ngày tải lên: 23/10/2013, 22:15

... for written text include some means for the detection of nonreferential it. How- ever, evaluation figures for this task are not always given. As the detection of nonreferential it is sup- posed ... but that they can signal important information (cf. Heeman & Allen (1999)). 5 Conclusion and Future Work This paper presented a machine learning system for the automatic detection of nonreferential ... reliability of this classification. Paice & Husk (1987) is the first corpus-based study on the detection of nonreferential it in writ- ten text. From examples drawn from a part of the LOB corpus...

Ngày tải lên: 22/02/2014, 02:20

... axis (mm) 2250 2300 2350 2400 2450 2500 2550 2600 2650 RF Signal Initial signal After ammonia After acetic acid Fig. 5. Radio frequency signal obtained from PAn-DBSA dispersion cast on glass, ... received signal to a low imped- ance suitable for subsequent signal processing. The amplified sig- nal was converted to a DC voltage of relatively low frequency. These waveforms are the ‘RF signal ... in the radio frequency detector out- put similar to those obtained with the PAn-nanofibre dispersion (Fig. 5). By abstracting the signal maxima of the sensor, it was possible to plot signal strength...

Ngày tải lên: 20/03/2014, 13:05

... into account in modeling approaches addressing ERK1,2 signaling, and the role of individual transcription factors targeted through MEK ⁄ ERK signaling was not included. Here we aim at identifying ... receptor-induced network of MAPK signaling showed that relatively few, distinct steps in the signal- ing cascade appeared to have a significant control function for the signaling amplitude, duration ... 1.7 in fibroblasts [40]. Hill coefficients of signaling cascades are maxi- mally the product of the Hill coefficients of the individual elements of the signaling pathway [41,42]. Therefore, the remaining...

Ngày tải lên: 23/03/2014, 06:20

... to record the feature frequency. The k’th entry v v v k corresponds to the frequency of the feature k in this window. Given a feature k, we use u to record the normalized frequency: u = v v v k /q. For ... Chinese word segmentation and new word detection. • Compared with prior work, our system achieves better accuracies on both word segmentation and new word detection. 2 Related Work First, we review ... segmentation and new word detection. Then, we review popular online training methods, in particular stochastic gradient descent (SGD). 2.1 Word Segmentation and New Word Detection Conventional approaches...

Ngày tải lên: 23/03/2014, 14:20

... the tree order of individual sequences and of group of sequences between fragments of defined length indicate conflicting phylogenetic rela- tionships. Alternatively, individual non-recombinant sequences ... sequential 300 base sequence fragments at 100 nucleotide intervals. Frequency and mapping of recombination Estimation of the frequency and mapping of the locations of recombination events was ... Central Page 1 of 10 (page number not for citation purposes) Virology Journal Open Access Research Detection and frequency of recombination in tomato-infecting begomoviruses of South and Southeast Asia HC...

Ngày tải lên: 18/06/2014, 18:20

... Central Page 1 of 10 (page number not for citation purposes) Virology Journal Open Access Research Detection and frequency of recombination in tomato-infecting begomoviruses of South and Southeast Asia HC ... samples with a low false positive rate [47]. Detection of recombination breakpoints The recombination breakpoint analysis was carried out using Recombination detection program RDP [48], GENECONV [19] ... the tree order of individual sequences and of group of sequences between fragments of defined length indicate conflicting phylogenetic rela- tionships. Alternatively, individual non-recombinant sequences...

Ngày tải lên: 20/06/2014, 01:20

... analysis to rectilinear known useful signals for which the baseband signal is real, which concerns many applications. Keywords : Detection, GLRT, Known signal, Unknown parameters, Noncircular, ... sets of unknown signal parameters, for the detection of a known signal corrupted by an unknown SO noncircular total noise. To simplify the analysis, only rectilinear known useful signals are considered, ... useful signals whose complex envelope is real such as AM, PPM, ASK or BPSK signals. We could also talk about one-dimensional signals. This assumption is not so restrictive since rectilinear signals,...

Ngày tải lên: 21/06/2014, 00:20