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检索条件"任意字段=3rd International Conference on Signal and Data Processing, ICSDP 2023"

共 2951 条记录，以下是191-200 订阅

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Multiple chip rate division DS/CDMA system and its statistical BER using a novel co-channel interference model

Multiple chip rate division DS/CDMA system and its statistic...

引用

3rd international conference on signal processing (ICSP 96)

作者： Chen, XH Lang, T Natl Univ of Singapore Singapore Singapore

ISBN: (纸本)7505338900

Multiple chip rates can be applied to a DS/CDMA system in order to enhance potential system capacity which otherwise is limited by spreading code family size. The technique is called by us ''chip rate division multiple access'' (CrdMA). A co-channel interference method based on cross-correlation statistics is used to Study performance of the CrdMA with various spreading code families.

关键词： data communication systems

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Brainwave-Controlled Applications with the Emotiv EPOC Using Support Vector Machine 3

Brainwave-Controlled Applications with the Emotiv EPOC Using...

引用

3rd international conference on Information Technology, Computer, and Electrical Engineering (ICITACEE)

作者： Ha Hoang Kha Vo Anh Kha Dinh Quoc Hung Ho Chi Minh City Univ Technol Ho Chi Minh City Vietnam

ISBN: (纸本)9781509008902

Electroencephalography (EEG) which is the electrical signal recorded by the sensors attached on the human scalp to detect brain activities has been the emerging trends in digital signal processing. As compared to processing other types of digital data such as speech or audio signals, EEG signal processing is more challenging. However, EEG signals have practically found a wide range of important applications. In this paper, we propose a design of a brain-computer interface (BCI) using EEG's P300 component to a control application. First, we use the Emotiv EPOC headset to capture the raw EEG signals. Then, we adopt a classification algorithm by invoking support vector machine along with the selected extracted features to classify the two-class EEG trials (with and without P300 component). The algorithm is developed to help people express their selection of one among four commands. The experimental results are provided evaluate the classification accuracy.

关键词： EEG signal processing P300 brain-waves brain computer interface brain-wave-controlled application

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Design and implementation of a configurable remote analog data acquisition system using the IEEE-1394B bus 3

Design and implementation of a configurable remote analog da...

引用

3rd international conference on Intelligent Control, Measurement and signal processing and Intelligent Oil Field, ICMSP 2021

作者： Hu, Mingliang Che, Jionghui Yu, Fangchun Li, Yang AVIC Computing Research Institute Research Department of Utility Management Systems Xi'an China

ISBN: (纸本)9781665437158

The analog data acquisition system developed in this paper is integrated into the remote interface unit of aircraft. It uses the high certainty and high real-time performance of the IEEE-1394B bus to realize information interaction with the aircraft backbone network, and participates in sensor closed-loop regulation and state information feedback. Using DSP + FPGA architecture, the functions of bus communication, high-speed data acquisition and decoupling control are realized. The normalization design of analog data acquisition is realized by using table driving and dynamic switching technology. The method of error calibration is applied to realize high-precision acquisition. The system software is divided into acquisition layer, interpretation layer and application layer, which has strong portability. The experimental results show that the acquisition accuracy is high, which can meet the requirements of aircraft analog data acquisition. The system developed has the characteristics of high real-time, generalization, miniaturization and strong data processing ability. © 2021 IEEE.

关键词： data acquisition

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A Survey of Distance Metrics in Clustering data Mining Techniques 19

A Survey of Distance Metrics in Clustering Data Mining Techn...

引用

3rd international conference on Graphics and signal processing (ICGSP)

作者： Mercioni, Marina Adriana Holban, Stefan Politehn Univ Timisoara Dept Comp Sci Timisoara Romania

ISBN: (纸本)9781450371469

Lately, due to the increasing size of databases, several aspects have been studied in detail, such as grouping, searching for the closest neighbor and other identification methods. It has been found that in the multidimensional space, the concept of distance does not offer high performance. In this paper, we study the effect of different types of distances on the group to see the similarities between objects. Among these distances we mention two distances: the Euclidean distance and Manhattan distance, implemented in a system developed to identify the architectural styles of the buildings. The aim of this paper is using cluster analysis to identify distance metrics impact in detection of architectural styles using data Mining techniques.

关键词： Distance metrics Manhattan distance Euclidean distance clustering image analysis architectural styles detection cluster analysis

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Application of Temperature Compensated Ultrasonic Ranging for Blind Person and Verification Using MATLAB

Application of Temperature Compensated Ultrasonic Ranging fo...

引用

3rd IEEE international Advance Computing conference (IACC)

作者： Rastogi, Rahul Kumar Mehra, Rajesh FIET ECE Dept Bareilly Uttar Pradesh India NITTTR ECE Dept Chandigarh India

ISBN: (纸本)9781467345286

This paper contains a method to implement a mobility aid for blind person and also can be used in automatic robots, self-propelling vehicles in automated production factories etc. Model contains signal processing unit with PIC microcontroller which receives data from Ultrasonic sensor and Temperature sensor then processed it and delivers it to the computer using serial input/output port & gives alert to the blind person using voice processor with earphone. Paper contains temperature compensation method to reduce the error in measurement of distance using ultrasonic sensors. signal processing unit contains PIC microcontroller which is used for interfacing between different sensors and computer. Then received data is verified using MATLAB.

关键词： Human machine interface MATLAB PIC signal processing unit Temperature compensation Ultrasonic sensor Voice processor

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Low-cost IMU data Denoising using Savitzky-Golay Filters 3

Low-cost IMU Data Denoising using Savitzky-Golay Filters

引用

3rd international conference on Communications, signal processing, and their Applications (ICCSPA)

作者： Karaim, Malek Noureldin, Aboelmagd Karamat, Tashfeen B. Queens Univ Elect & Comp Engn Kingston ON Canada Royal Mil Coll Canada Elect & Comp Engn Kingston ON Canada

ISBN: (纸本)9781728120850

MEMS sensors have been used in many applications including navigation systems. However, these sensors suffer from highly noisy measurements. If left untreated, these errors will significantly degrade the ultimate navigational solution. Hence, applying a pre-filtering technique becomes a necessity to de-noise these sensor signals to improve the overall system performance. While wavelet denoising is the most common technique for sensor data pre-filtering, it may not be suitable for real-time implementations. This paper explores another method;namely, Savitzky-Golay filters, which can provide competitive denoising performance with a less computationally demanding algorithm. The purpose of the paper is to examine the performance of the new method against wavelet de-noising with respect to both positioning and attitude accuracy and computations time. We applied the filter to denoise MEMS-based inertial sensors data in a tightly coupled integrated INS/GPS system. Our results showed that the new method outperformed the wavelet denoising approach. Moreover, the new method demands much less computations time, which makes it more suitable for embedded systems and real-time applications.

关键词： Sensors Gyroscopes Accelerometers Noise reduction Global Positioning System Wavelet transforms

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Novel Preprocessing and data Augmentation Method for Bearing Fault Diagnosis 3

Novel Preprocessing and Data Augmentation Method for Bearing...

引用

3rd international conference on Electrical Machines and Drives, ICEMD 2023

作者： Montasseri, Mohammad Mahdi Faiz, Jawad Parvin, Farbod Kalhor, Ahmad University of Tehran School of Electrical and Computer Engineering Tehran Iran

ISBN: (纸本)9798350393743

To avoid financial and life risks, early diagnose of bearing faults is particularly important, and this has made intelligent fault diagnosis popular. Intelligent fault diagnosis faces challenges such as the need for sufficient data and suitable performance for noisy data. This paper presents a preprocessing and data augmentation method to improve the performance of a few-shot learning method based on these two challenges. In this method first vibration signal is converted to two-dimensional images by means of mel spectrogram, then two image processing methods, namely, histogram equalization and gamma correction are applied. Finally, a data augmentation method based on gamma correction method is used. By using the Case Western Reserve University dataset, it is shown that the proposed method can improve the fault diagnosis process. © 2023 IEEE.

关键词： Image enhancement

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The signal Acquisition and processing of High Pressure Homogenization Process

The Signal Acquisition and Processing of High Pressure Homog...

引用

3rd IEEE international conference on Computer Science and Information Technology (ICCSIT)

作者： Liu Bin Wang Jing Liu Meilian Feng Tao China Agr Univ Coll Engn Beijing Peoples R China Beijing Technol & Business Univ Coll Mech Engn Beijing Peoples R China

ISBN: (纸本)9781424455379

The signal acquisition and processing of homogenizing pressure in high pressure homogenizer are studied. For the measuring requirements of dynamic parameters in high pressure homogenizer, pressure transmitter, the signal collecting circuits about intensifier pump's motion were selected. The signal acquisition system can perform the functions such as signal collecting, recording and data recalling and so on. Moreover, the wavelet decomposition using 'sym4' at level 10 was used for de-noising of homogenizing pressure signal. The decomposed signal is selected through Birge-Massart threshold strategy and reconstructed. After collected and processed, the homogenizing pressure signal can be the foundational data for analyzing the homogenizing process and improving the crucial structure of high pressure homogenizer.

关键词： high pressure homogenization signal acqusition wavelet transform de-noising

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processing of Input signals of Wireless Monitoring Networks by Means of Subscriber Systems 3

Processing of Input Signals of Wireless Monitoring Networks ...

引用

3rd international conference on Advanced Information and Communications Technologies, AICT 2019

作者： Shevchuk, Bohdan Brayko, Yuriy Geraimchuk, Mykhaylo Ivakhiv, Orest Velgan, Roman National Academy of Sciences of Ukraine NASU Glushkov Institute of Cybernetics Kyiv Ukraine National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute' Kyiv Ukraine Lviv Polytechnic National University Lviv Ukraine

ISBN: (纸本)9781728123998

Operative processing, coding and express analysis of monitoring signals, determination of information states of monitoring objects based on calculation of correlation, spectral, entropy and chaotic parameters of signal samples with the use of parameters of the most informative essential signal samples are proposed. The compact and protected monitoring data arrays formed near to stream source location, as well as the results of the express signal analysis, are the basis for minimizing the information packets in wireless networks. © 2019 IEEE.

关键词： signal analysis

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Study of the coding in the progressive image transmission

Study of the coding in the progressive image transmission

引用

3rd international conference on signal processing (ICSP 96)

作者： Sun, YL Shi, G Chen, YP Wuhan University of Hydraulic and Electrical Engineering Wuhan Hubei China

ISBN: (纸本)7505338900

Direction coding is the new method of image coding. The human visual model is used to make direction filters and high compressive ratios are obtained. Direction coding not only deals with the continuous component of an image by subsample it with high compressive ratio, but also does some things with the discontinuous component of the image. We apply direction coding method to narrow band image transmission in a progressive way. Experiments were made on normal telephone lines.

关键词： visual communication image coding edge detection filtering theory image sampling Huffman codes data compression progressive image transmission direction coding image coding human visual model direction filters high compression ratios narrowband image transmission telephone lines continuous image component discontinuous image component edge detection Huffman coding

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