421 cpc detection for outgoing calls

Semi-blind signal detection for mimo and mimo-ofdm systems

Semi-blind signal detection for mimo and mimo-ofdm systems

... interference and noise at the receiver Signal detection is therefore an important component in these systems Most of the works done on signal detection for MIMO systems consider synchronous case ... P + 1) 0 H (ko P + 2) 0] For the case ˆ i = , the {1,3,5} th columns of H RE (ko ) form the first group and d1 = Similarly, 18 ˆ for i = , the {2, 4, 6} th columns form the second group and ... state information is also shown for comparison purpose The proposed Rake-based 30 algorithm with the parameter m = achieves 10−3 BER at SNR = 22dB while for the case m = to achieve the same performance...

Ngày tải lên: 20/11/2012, 11:36

103 395 2
Ecient Collision Detection for Animation and RoboticsMing C. LinDepartment of Electrical pptx

Ecient Collision Detection for Animation and RoboticsMing C. LinDepartment of Electrical pptx

... : : : : : : : : : : : : 7.2.1 Overlap Detection for Convex Polyhedra : 7.2.2 Intersection Test for Concave Objects : : : 7.2.3 Collision Detection for Deformable objects 7.2.4 Collision Response ... Representation : : : : : : : 4.1.2 Detection for Non-Convex Polyhedra : : : : : : : : : : 4.2 Collision Detection for Curved Objects : : : : : : : : : : : : : 4.2.1 Collision Detection and Surface Intersection ... earlier survey on clash detection" was presented by Cameron 12 He mentioned three di erent approaches for dynamic collision detection One of them is to perform static collision detection repetitively...

Ngày tải lên: 14/03/2014, 14:20

159 296 0
Radar-Based Intruder Detection for a Robotic Security System Phil Corya, H. R. Everettb, Tracy Heath pptx

Radar-Based Intruder Detection for a Robotic Security System Phil Corya, H. R. Everettb, Tracy Heath pptx

... INTRUSION DETECTION SYSTEM REQUIREMENTS To provide a robust and dependable automated security system, the following performance requirements were developed for the MDARS-E Intrusion Detection ... remote platforms (i.e., semi-autonomous robots)2 The system is designed to run automatically with minimal human oversight High-level status information is provided for all the platforms via the ... detected intruder for purposes of identification, assessment, and response RADAR FOR INTRUDER DETECTION Electromagnetic energy in the 3-100 gigahertz (GHz) range has been used for years in conventional...

Ngày tải lên: 22/03/2014, 11:20

11 321 0
Lucid Dreaming: Reliable Analog Event Detection for EnergyConstrained Applications ppt

Lucid Dreaming: Reliable Analog Event Detection for EnergyConstrained Applications ppt

... may be used as event detection sensors, e.g., – Solar cells, for light; – Unbiased microphones, for audio; – Piezoelectric elements, for vibration; and – Peltier elements, for temperature differences ... in other applications Although we use separate sensors for event detection and data logging, the primary sensor may also be used for event detection if its power consumption is sufficiently low When ... Description Example value for ACM Average power consumption for lucid dreaming 1.3 × 10−4 W Average power consumption for polling solution 3.0 × 10−2 W Average power consumption for event prediction...

Ngày tải lên: 23/03/2014, 13:20

10 369 0
Audio-based Event Detection for Sports Video pot

Audio-based Event Detection for Sports Video pot

... numbers, 75% of the samples were used for training and 25% for testing and the performance of each classifier is presented in Table 3.1 Table Labelled data for each class generated from matches ... larger training sample performed better 3.2 Event Detection Results To measure the event detection approach, we gathered match reports and detailed game statistics for two new unseen games The ... models In ICML, pages 543–550, Stanford, California, 2000 11 M R Naphade, A Garg, and T S Huang Duration dependent input output markov models for audio-visual event detection In ICME, Tokyo, Japan,...

Ngày tải lên: 23/03/2014, 13:20

10 331 0
Báo cáo khoa học: "Error Detection for Statistical Machine Translation Using Linguistic Features" pptx

Báo cáo khoa học: "Error Detection for Statistical Machine Translation Using Linguistic Features" pptx

... systems is desired for error detection Linguistic knowledge is exactly such a good choice as an external information source It has already been proven effective in error detection for speech recognition ... effectiveness of linguistic features for error detection but also to identify the additional contribution of each feature to the task 6.1 Data Corpus For the error detection task, we use the best ... for error detection We conducted three groups of experiments using the MaxEnt based error detection model with various feature combinations 6.2 Evaluation Metrics To evaluate the overall performance...

Ngày tải lên: 23/03/2014, 16:20

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Effcient Collision Detection for Animation and Robotics potx

Effcient Collision Detection for Animation and Robotics potx

... : : : : : : : : : : : : 7.2.1 Overlap Detection for Convex Polyhedra : 7.2.2 Intersection Test for Concave Objects : : : 7.2.3 Collision Detection for Deformable objects 7.2.4 Collision Response ... Representation : : : : : : : 4.1.2 Detection for Non-Convex Polyhedra : : : : : : : : : : 4.2 Collision Detection for Curved Objects : : : : : : : : : : : : : 4.2.1 Collision Detection and Surface Intersection ... earlier survey on clash detection" was presented by Cameron 12 He mentioned three di erent approaches for dynamic collision detection One of them is to perform static collision detection repetitively...

Ngày tải lên: 31/03/2014, 10:20

159 363 0
VIDEO BASED OBSTACLE DETECTION FOR MOBILE ROBOT

VIDEO BASED OBSTACLE DETECTION FOR MOBILE ROBOT

... for acquiring, processing, analyzing, and understanding images and, in general, high-dimensional data from the real world in order to produce numerical or symbolic information, e.g., in the forms ... in industrial applications [1] Obstacle Detection Obstacle Detection (OD) is defined as the determination of whether a given space is free of obstacles for safe travel by an autonomous vehicle ... warning system This project aims at researching obstacle detection In this report we introduce several approaches to handle obstacle detection task such as using laser sensor, radar sensor, infra-red...

Ngày tải lên: 12/04/2014, 15:45

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báo cáo hóa học: " Fault detection for hydraulic pump based on chaotic parallel RBF network" docx

báo cáo hóa học: " Fault detection for hydraulic pump based on chaotic parallel RBF network" docx

... fault detection for hydraulic pump using neural network in conjunction with chaos theory A commonly used neural network in the past and now, namely, RBF network was employed for fault detection for ... fault detection However, it is also shown from the experiments that different types of faults might represent the same fault form, accordingly, the proposed method is not suitable for performing ... were used for prediction As a whole, 800 data points were divided into training and testing dataset The first 600 samples were employed for RBF network training, the next 100 samples for the determination...

Ngày tải lên: 21/06/2014, 00:20

10 273 0
Báo cáo hóa học: " Research Article Prevoting Cancellation-Based Detection for Underdetermined MIMO Systems" pot

Báo cáo hóa học: " Research Article Prevoting Cancellation-Based Detection for Underdetermined MIMO Systems" pot

... conventional MIMO detector that works for a square MIMO channel for the detection of sQ For convenience, denote by sk the detected symbol vector of sQ (by any means) for given Q sP = sk Let P ⎡ sk ... PVC-MIMO detection, we note different postvoting vector results in different HQ which may lead to different performance of sub -detection In order to exploit the performance of the PVC-MIMO detection, ... detectors (LR-based detectors or linear detectors) for the sub -detection, with an optimal PVS, it is also shown that a near ML performance can be achieved For slow fading MIMO channels, through simulations,...

Ngày tải lên: 21/06/2014, 11:20

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Báo cáo hóa học: "Research Article Higher-Order Cyclostationarity Detection for Spectrum Sensing" pdf

Báo cáo hóa học: "Research Article Higher-Order Cyclostationarity Detection for Spectrum Sensing" pdf

... detectors exhibit similar performances From now on, we will focus on the fourthorder feature detection for baseband signals and let aside the fourth-order feature detection for RF signals, as it enables ... is therefore suited for operations at low SNR 7.4 Performance Comparison We may now take a look at the performance of the different detectors Figure illustrates the probability of missed detection ... advantages are its simplicity and its ability to perform blind detection (since it does not require any information about the signal it is trying to detect) Unfortunately, it has been demonstrated that...

Ngày tải lên: 21/06/2014, 17:20

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báo cáo hóa học:" Research Article Motion Pattern Extraction and Event Detection for Automatic Visual Surveillance" doc

báo cáo hóa học:" Research Article Motion Pattern Extraction and Event Detection for Automatic Visual Surveillance" doc

... of frames used for its estimation In this work, we put forward two applications The first one consists of detecting typical motion patterns of a given video sequence This is performed by estimating ... (i) detection and tracking of the moving objects present in the scene, (ii) extraction of motion patterns from the tracks, and eventually (iii) detection of events using motion patterns information ... used for recovering direction maps from video, constructing direction map templates to define target patterns of interest, and comparing predefined templates to newly acquired video for pattern detection...

Ngày tải lên: 21/06/2014, 20:20

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Báo cáo hóa học: "Research Article Fuzzy Mode Enhancement and Detection for Color Image Segmentation" docx

Báo cáo hóa học: "Research Article Fuzzy Mode Enhancement and Detection for Color Image Segmentation" docx

... MODE DETECTION BY A FUZZY MORPHOLOGICAL TRANSFORMATION OF THE sccf Introduction Basic binary morphological tools have proved to be suited for object segmentation [24] and for nonglobular mode detection ... makes the direct detection of the modes a tough task In order to facilitate this detection, we propose to perform a transformation of the fuzzy set “mode” M, that is, a transformation of the ... morphological transformation for mode detection In order to take advantage of the two fuzzy operators defined above, we propose to combine them into a fuzzy morphological transformation, which performs a...

Ngày tải lên: 21/06/2014, 22:20

19 336 0
Báo cáo hóa học: "Research Article Linearly Time-Varying Channel Estimation and Symbol Detection for OFDMA Uplink Using " potx

Báo cáo hóa học: "Research Article Linearly Time-Varying Channel Estimation and Symbol Detection for OFDMA Uplink Using " potx

... cancellation for information sequence recovery In this paper, we propose a new ST-based channel estimator that can overcome the aforementioned shortcomings in estimating LTV channel for OFDMA uplink ... designed training sequence (10), the closed-form estimation variance (31) may provide a guideline for signal power allocation at transmitter, for example, for a given threshold of the estimation ... the SER performance based on the FDM training scheme [14] where information sequences and pilot symbols are of frequency-division multiplexed and the symbol detection can be thus performed without...

Ngày tải lên: 21/06/2014, 23:20

11 389 0
Báo cáo hóa học: " Research Article Multiple Moving Object Detection for Fast Video Content Description in Compressed Domain" doc

Báo cáo hóa học: " Research Article Multiple Moving Object Detection for Fast Video Content Description in Compressed Domain" doc

... described above for all P-frames within a single video shot, we obtain the motion masks for all the foreground moving objects in the shot which represent a first guess for the foreground moving ... represent a good guess for locating the foreground moving object shape in P-frames Nevertheless, using motion information alone is not sufficient for a robust and to some extent for accurate object ... METHODOLOGY FOR FOREGROUND OBJECT EXTRACTION In this section, a brief overview of the proposed system is given, leaving the details for the subsequent sections The global block-diagram for object...

Ngày tải lên: 22/06/2014, 19:20

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Báo cáo hóa học: " Research Article Robust Feature Detection for Facial Expression Recognition" ppt

Báo cáo hóa học: " Research Article Robust Feature Detection for Facial Expression Recognition" ppt

... notation Mx to k denote the binary mask k of facial feature x, where x is e for eyes, m for mouth, n for nose, and b for eyebrows, and Lx denotes the respective luminance masks Additionally, feature ... in chromatic components is a good indicator for color noise presence Therefore, σCr , σCb are less than tσ for good color quality and much larger for poor quality images Regarding resolution, ... each of the intermediate masks WIx denotes WI for single mask x and WI f is the WI for the final mask for each facial feature; WIx denotes the average WI for mask x calculated over all test frames...

Ngày tải lên: 22/06/2014, 19:20

22 390 0
Báo cáo hóa học: " Research Article Blind PARAFAC Signal Detection for Polarization Sensitive Array" ppt

Báo cáo hóa học: " Research Article Blind PARAFAC Signal Detection for Polarization Sensitive Array" ppt

... polarization and DOA information am, f sn, f b p, f , m = 1, , M; f =1 n = 1, , N; p = 1, 2, (9) X Zhang and D Xu where am, f stands for the (m, f ) element of A matrix, and similarly for the others ... (S) AT = SSR = 3.1 Trilinear alternating least squares , F and the LS update for A is M BLIND PARAFAC SIGNAL DETECTION FOR POLARIZATION SENSITIVE ARRAY ⎡ A,S,B (11) where the M × matrix Z··n = [xn,·,· ... variables [11] In our present context, for source-wise independent source signals, kB = min(N, K); for source-wise independent polarization, kS = min(2, K), and therefore, (24) becomes min(2, K) + M...

Ngày tải lên: 22/06/2014, 19:20

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Báo cáo hóa học: " Research Article Linear Predictive Detection for Power Line Communications Impaired by Colored Noise" pdf

Báo cáo hóa học: " Research Article Linear Predictive Detection for Power Line Communications Impaired by Colored Noise" pdf

... modulation formats may be adopted for their simplicity However, in broadband applications strong colored noise sources can severely limit the performance of single-carrier systems and demand for adequate ... Detection Algorithms for Wireless Communications, with Applications to Wired and Storage Systems, John Wiley & Sons, London, UK, 2004 [31] R Pighi and R Raheli, “Linear predictive detection for ... noise for LV power lines and corona noise [19, 20] for HV power lines Moreover, in order to reduce the computational load of the linear predictive receiver, we apply reduced-state sequence detection...

Ngày tải lên: 22/06/2014, 20:20

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Báo cáo hóa học: " Research Article Communication Timing Control with Interference Detection for Wireless Sensor Networks" potx

Báo cáo hóa học: " Research Article Communication Timing Control with Interference Detection for Wireless Sensor Networks" potx

... with the desired signal for node from node x, for instance, x = 12 Also, if P9 x   P9 Esir holds, node becomes an interference node to the desired signal for node Therefore, the node set comprising ... based on phase dynamics for collision avoidance Node i interacts with a virtual node and forms appropriate phase-difference pattern Let θi j denote phase value of virtual node j for node i Then the ... Esir (dBm) The ERIS, the corresponding range for Pi , will become larger than the communication range of node Therefore, some extension is required for the timing control with two-hop neighbor...

Ngày tải lên: 22/06/2014, 22:20

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