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检索条件"主题词=signal processing algorithms"

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signal processing for a non-invasive microwave heart rate estimator

Signal processing for a non-invasive microwave heart rate es...

引用

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： S. Hunt A. Roseiro M. Siegel Department of Electrical Engineering Michigan State University East Lansing MI USA

A number of processing methods for estimating heart rate from low-level, remote microwave signals have been developed. From the return of a microwave signal reflected off the chest, a decision is made whether a heart beat signal is present, and if it is, an estimation of the heart rate is made. To achieve this, the return analog signal is amplified, filtered, sampled, and quantized. The resultant digital signal is passed through a nonlinear filter used to emphasize the impulsive character of the heart. Detection is done at this point using partial correlation and pattern recognition.< >

关键词： signal processing Heart rate Heart beat Microwave filters Transceivers signal processing algorithms Sampling methods Shape measurement Humans State estimation

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An investigation of reconfigurable multipliers for use in adaptive signal processing

An investigation of reconfigurable multipliers for use in ad...

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Annual IEEE Symposium on Field-Programmable Custom Computing Machines (FCCM)

作者： T. Courtney R. Turner R. Woods School of Electrical and Electronic Engineering Queen''s University Belfast Belfast UK

ISBN: (纸本)0769508715

This paper looks at various XC6200 multiplier architectures for use within adaptive signal processing systems. It compares data throughput, block utilisation and reconfiguration times. A number of approaches are compared including fully programmable multipliers and three separate ways of implementing reconfigurable multipliers. The paper shows how fixed coefficient multipliers can be used to increase the number of multipliers from 4 to 10. Many of the ideas and rules can be extended to more recent fine grain architectures.

关键词： Adaptive signal processing Routing Hardware Field programmable gate arrays Reconfigurable logic Pipeline processing Throughput signal processing algorithms Circuits Registers

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signal enhancement: a useful signal processing tool

Signal enhancement: a useful signal processing tool

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Annual ASSP Workshop on Spectrum Estimation and Modeling

作者： J.A. Cadzow Department of Electrical Engineering Arizona State University Tempe AZ USA

A recently developed signal enhancement algorithm that can significantly improve the performance of many existing signal processing methods is reviewed. In this approach, the data being analyzed are first preprocessed using signal enhancement to clean up the data. This preprocessing operation seeks to modify the data appropriately so that the modified data satisfy known (or hypothesized) signal attributes. The modified data are then processed by an appropriate algorithm. The unity of this approach is demonstrated for the following examples: finding a positive sequence that approximates a given nonpositive sequence, detecting and identifying sinusoidal components in empirical data, and designing recursive digital filters.< >

关键词： signal processing Distortion measurement signal processing algorithms signal analysis Noise measurement Data analysis Digital filters Digital signal processing Extraterrestrial measurements Instruments

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Subband signal processing for hearing aids

Subband signal processing for hearing aids

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： S. Wyrsch A. Kaelin Eidgenossische Technische Hochschule Zurich Zurich ZH CH

In this paper a hearing aid concept working in subbands is presented. Consideration is given to the compensator for recruitment of loudness and the acoustic feedback cancellation. In addition, a step-size control for fast tracking and a constant error level with nonstationary input signals is presented. The feedback canceler is adapted to the feedback path in the transform domain using a power-normalized least mean square (LMS) algorithm. The transformation into subbands is based on the modulated lapped transform (MLT). Together with the feedback canceler the proposed hearing-loss compensating forward filter is computationally very efficient.

关键词： signal processing Hearing aids Feedback Acoustic signal processing Auditory system Recruitment Error correction Least squares approximation signal processing algorithms Filters

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Small-group learning projects to make signal processing more appealing: From speech processing to OFDMA synchronization

Small-group learning projects to make signal processing more...

引用

International Conference on Acoustics, Speech, and signal processing (ICASSP)

作者： G. Ferre A. Giremus E. Grivel UMR 5218 IMS ENSEIRB Université de Bordeaux 1 Talence France

Whereas lecturing is the most widely used mode of instruction, we have explored small-group learning projects to make signal processing more appealing at the University and in Engineering schools in Bordeaux (France). The projects cover a wide range of applications, from audio processing to mobile communication system analysis and can be based on problems suggested by industrial partners. After a state of the art in the area, the students develop signal processing algorithms and usually deliver new softwares. At the end of the semester, they provide a final 8-page report and present their work during a one-day workshop. The projects enable the students to experience cooperative works, which is mostly done in industry. In addition, they help the students to see more easily the links between the courses they follow, including project managing. The students are hence involved in dialog inside their own group, in writing English reports as well as in problem solving, analysis and synthesis. This paper presents four examples dealing with speech processing, spectral analysis, Universal Mobile Telecommunications System (UMTS) mobile positioning and orthogonal frequency division multiple access (OFDMA) synchronization.

关键词： signal processing Speech processing Frequency synchronization Educational institutions Application software Mobile communication Communication industry signal processing algorithms Collaborative work Project management

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Landmine detection with GPR using super resolution signal processing algorithm

Landmine detection with GPR using super resolution signal pr...

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Proceedings of the International Conference on Ground Penetrating Radar, GPR

作者： Shanker Man Shrestha I. Arai Y. Tomizawa Electronics Engineering Department University of Electro-Communications Chofu Tokyo Japan

In this paper, ground-penetrating radar (GPR), which has the capability to detect non-metal and plastic mines, is proposed to detect and discriminate antipersonnel (AP) landlmines. SFCW (Stepped Frequency Continuous Wave) radar, which is based on vector network analyzer, is utilized for metal and plastic landmine detection and its performance is investigated. Since signal processing is vital for target reorganization and clutter rejection, we categories the signal processing method into two phases. In first phase, the numbers of the frequency domain radar data traces underwent CPM (Combined processing Method) to obtain two dimensional time domain data. CPM is a method of combining the time domain results of MUSIC (Multiple signal Classification) and IFFT (Inverse Fast Fourier Transform) to achieve a good tradeoff between high resolution and a high precision signal level. In second phase, the two-dimensional time domain data was processed by SAR (Synthetic Aperture Radar) method to obtain the 1 hree dimensional image of the landmine.

关键词： Landmine detection Ground penetrating radar signal resolution signal processing algorithms Radar detection Multiple signal classification Synthetic aperture radar Plastics Radar signal processing Earth

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A harmonic current detection method based on digital signal processing technology

A harmonic current detection method based on digital signal ...

引用

International Conference on Power Electronics and Motion Control (IPEMC)

作者： Yihong He Jinjun Liu Zhaoan Wang School of Electrical Engineering Xi''an Jiaotong University Xi'an China

ISBN: (纸本)7560518699

According to digital signal processing technology, the digital algorithm for the instantaneous reactive power theory is discussed. The real-time detection approach of harmonic current based on it is proposed and the corresponding detection system including DSP is configured. The simulation and the experiment investigations aiming at the detection system are done to show the performance of the detection system.

关键词： Digital signal processing Power harmonic filters Power system harmonics Reactive power Active filters signal processing algorithms Power quality Power system simulation Analog circuits Real time systems

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Design Models of Pipelined Units for Digital signal processing

Design Models of Pipelined Units for Digital Signal Processi...

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International Conference on CAD Systems in Microelectronics (CADSM)

作者： Iryna Hahanova Yaroslav Miroshnychenko Irina Pobegenko Oleksandr Savvutin DAD Department Kharkiv National University of Radioelectronics Kharkiv Ukraine DAD Department KNURE Ukraine DAD Department KNURE KNURE Russia

In this paper the architectural models of pipelined computing units with system-level description, those essentially decrease the design cycle for digital signal processing products, are offered. Practical realization of the filter, that confirms developed design flow effectiveness with software products Simulink (Mathlab) and Active HDL, Aldec Inc., is given.

关键词： signal design Digital signal processing signal processing algorithms Pipeline processing Data flow computing signal processing Data processing Automata Digital images Concurrent computing

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signal processing in receivers for communication over MIMO ISI channels

Signal processing in receivers for communication over MIMO I...

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IEEE International Symposium on signal processing and Information Technology (ISSPIT)

作者： R.F.H. Fischer J.B. Huber Lehrstuhl für Informationsubertragung Friedrich-Alexander-Universität Erlangen-Nümberg Erlangen Germany

Digital transmission over dispersive channels which suffer from intersymbol interference and multiuser interference is reviewed. In particular, the digital signal processing required at the receiver for performing combined spatial/temporal decision-feedback equalization is studied and the aims of processing the received signal are discussed. The calculation of the optimum filters by solving a factorization problem and an practical algorithm for its solution are reviewed. Finally, the optimality of DFE with respect to channel capacity is shown.

关键词： signal processing MIMO Intersymbol interference Receiving antennas Matched filters Transmitting antennas Decision feedback equalizers Digital signal processing Dispersion signal processing algorithms

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Turbo Decoding Performance Analysis for EEG signal processing in Telemedicine Applications: A Comparative Study in 5G Networks

Turbo Decoding Performance Analysis for EEG Signal Processin...

引用

Recent Advances in Information Technology for Sustainable Development (ICRAIS), International Conference on

作者： Santhosh Kumar K B Yashwanth N Sushma N Venkateswara Rao Kolli Dept. of E & C Engineering Maland College of Engineering Hassan Karnataka Affiliated to Vivesvaraya Technological University Belagavi India Dept. of E and C Engineering Manipal Institute of Technology Manipal Academy of Higher Education Manipal India

ISBN: (数字)9798350354461

ISBN: (纸本)9798350354522

In the realm of telemedicine within 5G networks, real-time monitoring and analysis of EEG signals are increasingly vital. Efficient decoding techniques play a crucial role in ensuring accurate data transmission and timely diagnosis. This paper conducts a thorough comparative study of turbo decoding techniques applied in EEG signal processing for telemedicine applications within 5G networks. Various turbo-decoding algorithms are evaluated based on decoding accuracy, computational complexity, and latency. Factors such as channel conditions, SNR, and packet loss rates are considered to assess the suitability of these techniques for handling EEG signals over 5G networks. Extensive simulations and analysis are conducted to provide insights into the trade-offs between different turbo decoding techniques and their impact on EEG signal reconstruction quality. The study yields significant insights into the performance of various turbo decoding techniques in the context of EEG signal processing for telemedicine over 5G networks. By analyzing these factors, the research aims to optimize telemedicine systems utilizing 5G technology, ultimately enhancing the reliability and efficiency of EEG signal processing for medical diagnosis and monitoring applications. The findings suggest potential strategies for reducing Bit Error Rate (BER) and improving overall signal performance for different code rates and turbo decoding techniques, thus benefiting patient care in telemedicine contexts.

关键词： Accuracy 5G mobile communication Telemedicine Bit error rate signal processing algorithms Electroencephalography Real-time systems Decoding Reliability signal to noise ratio

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