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检索条件"任意字段=Conference on Digital Signal Processing Technology"

共 23660 条记录，以下是101-110 订阅

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Analysis of Analogue-Domain Energy-Based Low-Power Wake-Up Receivers in Coloured Noise 17

Analysis of Analogue-Domain Energy-Based Low-Power Wake-Up R...

引用

17th International conference on COMmunication Systems and NETworkS, COMSNETS 2025

作者： Thiagarajan, Ganesan Gurugopinath, Sanjeev MMRFIC Technology Private Limited Bengaluru560048 India

ISBN: (纸本)9798331531195

Packet detection in communication receivers requires detection of the preamble (header) of the physical layer packet with required false alarm and mis-detection probabilities. Typical ultra low-power receivers employ simple energy based detection as primary wake-up method for turning the main receiver on, in order to save power during sniff mode. Since threshold based energy detection is done in analogue hardware, to avoid power spent in ADC and further digital signal processing, one should be able to compute the detection thresholds for various bandwidth and integration time of the detector. In this paper, we describe such a method to compute the detection thresholds analytically, based on mathematical analysis of error probabilities in a practical receiver. In an additive white Gaussian noise (AWGN) channel with constraints such as bandwidth limitation, spectral shaping due to filtering in the baseband, etc., theoretical expressions are derived for probability of false alarm and mis-detection. This procedure allows one to compute the detection thresholds analytically without resorting to simulation based approach. As an illustrative example, this method is explained for energy detection based detector for on-off keying (OOK) modulated symbols. Simulation results are provided to support the theoretical results. © 2025 IEEE.

关键词： Gaussian noise (electronic)

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Unified Architecture for High-Performance SDR Platforms

Unified Architecture for High-Performance SDR Platforms

引用

digital signal processing and its Applications (DSPA), International conference on

作者： Krutin Denis Ivan Melnik Ivan Varakin Artem Aksenov Institute of Information Technology and Electronics Vladimir State University Vladimir Russia

ISBN: (数字)9798331518752

ISBN: (纸本)9798331518769

The research presents a unified architecture for high-performance software-defined radio (SDR) platforms. The proposed architecture provides flexibility, reconfigurability, and modularity, making it ideal for adapting to the increasing demands of modern communication standards. Utilizing system-on-chip (SoC) and field-programmable gate arrays (FPGAs), this solution streamlines the development and prototyping of specialized radio devices. The results are substantiated by the implementation of next-generation modem prototypes and radio monitoring systems, demonstrating the significant potential of the proposed approach.

关键词： Computer architecture digital signal processing Modems Mathematical models Libraries Field programmable gate arrays Next generation networking Monitoring Software radio Communication standards

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Investigations on Jamming and Black Hole Attacks in Wireless Sensor Networks: An Industrial Case Study

Investigations on Jamming and Black Hole Attacks in Wireless...

引用

International conference on 6G Communications Networking and signal processing, SGCNSP 2023

作者： Lavanya, A. Udhayakumar, P. Rajkumar, K. Revathi, S. Department of Electrical and Electronics Engineering National Institute of Technology Puducherry Karaikal609609 India Department of Engineering Karaikal Port India Department of Instrumentation and Control Engineering National Institute of Technology Trichy Tiruchirappalli620015 India

ISBN: (纸本)9789819778751

As industries rapidly advance towards Industry 4.0 and the Industrial Internet of Things (IIoT), the integration of automation and digitalization has brought unprecedented efficiency gains to various sectors. Among the critical components of Industry 4.0, belt conveyors play a pivotal role in streamlining material handling processes. Many crucial parameters in the Industrial Conveyor system require constant attention and monitoring. However, this integration of digital systems also exposes these conveyor systems to new vulnerabilities, notably cyber-attacks. This paper, investigate the potential impacts of availability attack on Industrial Conveyor system. The study employs a multi-faceted approach, combining cyber-physical experiments and simulations. Black holes and jamming attacks are considered, targeting the Wireless Sensor Network (WSN) of the Industrial conveyor system. The effects of these attacks on conveyor movement, material flow, and overall production are meticulously examined. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Jamming

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ASIC Design For High Speed Flash Analog To digital Converter

ASIC Design For High Speed Flash Analog To Digital Converter

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Interdisciplinary Approaches in technology and Management for Social Innovation (IATMSI), IEEE conference on

作者： Brijesh Patel Rutu Parekh DA-IICT Gandhinagar India

ISBN: (数字)9798331521691

ISBN: (纸本)9798331521707

This paper presents the design and implementation of an Application Specific Integrated Circuit ( ASIC) of a high-performance 4-bit Flash Analog-to-digital Converter (ADC) using 180nm digital CMOS technology. Designed to meet the stringent demands of high speed and low power consumption, this ADC is tailored for modern signal processing applications requiring rapid and energy-efficient data conversion. The Flash ADC leverages a fully parallel architecture, utilizing an array of precision comparators and a resistor ladder network to achieve ultra-fast conversion of analog signals into digital format. Operating at a clock frequency of 100 MHz, the proposed design delivers exceptional performance while consuming only 59.71 μW from a 1.8V supply, making it ideal for power-sensitive applications. This compact and efficient A DC underscores the critical role of Flash ADCs in enabling real-time digital signal processing across diverse domains, including communication systems, medical imaging, and high-speed instrumentation.

关键词： Application specific integrated circuits Resistors Performance evaluation Technological innovation Power demand CMOS technology Real-time systems CMOS integrated circuits Transistors Analog-digital conversion

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2.5D Top-K Ranked Multiple Instance Learning to Classify NSCLC PD-L1 Status on CT Images

2.5D Top-K Ranked Multiple Instance Learning to Classify NSC...

引用

2025 IEEE International conference on Acoustics, Speech, and signal processing, ICASSP 2025

作者： Xu, Rui Liu, Huadong Li, Yongcen Ye, Xinchen Wang, Zhihui Wang, Hongkai Li, Haojie Wang, Yi Huang, Dingpin Xu, Fangyi Gan, Yi Tu, Yuan Hu, Hongjie School of Software Intern. School of Inform. Sci. and Engin. Dalian University of Technology Dalian China DUT-RU Co-Research Center of Advanced ICT for Active Life Dalian China Shandong University of Science and Technology Qingdao China Department of Radiology Sir Run Run Shaw Hospital Zhejiang University School of Medicine Hangzhou China Medical Imaging International Scientific and Technological Cooperation Base of Zhejiang Province Hangzhou China Department of Pathology Sir Run Run Shaw Hospital Zhejiang University School of Medicine Hangzhou China

ISBN: (纸本)9798350368741

Classifying the status of NSCLC PD-L1 on chest CT is a cost-effective and non-invasive method. The existing multiple instance learning (MIL) methods are not effective for this task, due to the lack of an efficient feature encoder for 3D instances and ignoring the importance of representative instance selection. Thus, they cannot capture weak visual cues related to PD-L1 status on CT images. To address this, we propose a 2.5D top-K ranked multiple instance learning method. We design a 2.5D instance feature encoder, which takes advantage of knowledge from a 2D pre-trained model and has trainable parameters to learn information for 3D instances. In addition, we design a top-K ranked multiple instance learning strategy, which fully exploits the bag-level labels to select representative instances to eliminate the effect of atypical instances and guide the network to learn effective information. We demonstrate that our method can not only outperform state-of-the-art MIL methods on the PDL1 status classification but also generalize well on a COVID-19 classification task. © 2025 IEEE.

关键词： CT Images Multiple-Instance Learning NSCLC PD-L1 Classification

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Perceptual Audio Coding: A 40-Year Historical Perspective

Perceptual Audio Coding: A 40-Year Historical Perspective

引用

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

作者： Jürgen Herre Schuyler Quackenbush Minje Kim Jan Skoglund International Audio Laboratories Erlangen Erlangen Germany Audio Research Labs Westfield NJ University of Illinois at Urbana-Champaign Urbana IL Google LLC San Francisco CA

ISBN: (数字)9798350368741

ISBN: (纸本)9798350368758

In the history of audio and acoustic signal processing, perceptual audio coding has certainly excelled as a bright success story by its ubiquitous deployment in virtually all digital media devices, such as computers, tablets, mobile phones, set-top-boxes, and digital radios. From a technology perspective, perceptual audio coding has undergone tremendous development from the first very basic perceptually driven coders (including the popular mp3 format) to today’s full-blown integrated coding/rendering systems. This paper provides a historical overview of this research journey by pinpointing the pivotal development steps in the evolution of perceptual audio coding. Finally, it provides thoughts about future directions in this area.

关键词： Computers Audio coding Speech coding Media digital communication Mobile handsets Acoustics History Speech processing digital audio players

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signal processing in GPR Applications for Cave-in Prediction in Road Assessment: A Review

Signal Processing in GPR Applications for Cave-in Prediction...

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digital signal processing and its Applications (DSPA), International conference on

作者： Vladimir Shlykov Daniil Spitsyn Sergey Guzhov Vadim Tutubalin Sergey Vityazev Stepan Andreev Rui Fan Alexandr Dvorkovich Moscow Institute of Physics and Technology Dolgoprudny Moscow Region Russian Federation Ryazan state radio engineering university named after V.F.Utkin Ryazan Russian Federation Tongji University Shanghai P. R. China National Research University “Moscow Power Engineering Institute” Moscow Russian Federation

ISBN: (数字)9798331518752

ISBN: (纸本)9798331518769

The article focuses on the problem of searching for voids under the road surface using ground penetrating radar (GPR). Early detection of such voids allows for the prediction of road collapses and prevents the occurrence of hazards. The main emphasis is on a review of signal processing algorithms used for this purpose. First, basic signal processing steps common to all GPR applications are considered. Then some advanced GPR signal processing methods are discussed. Next, the techniques used specifically for cave-in prediction are highlighted. Finally, an experimental study is described. The article is a review and introduces an important area of research and development.

关键词： Three-dimensional displays Reviews Roads signal processing algorithms Radar imaging Media Search problems Recording Surface treatment Research and development

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Separate Estimation of Angular Velocity and Angle for digital Array Radar

Separate Estimation of Angular Velocity and Angle for Digita...

引用

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

作者： Tsubasa Terada Toshihiro Ito Ryuhei Takahashi Information Technology R&D Center Mitsubishi Electric Corporation Kamakura Japan

ISBN: (数字)9798350368741

ISBN: (纸本)9798350368758

In this paper, we propose a method that enables one-dimensional estimation of angular velocity of a high-speed target by adding preprocessing to a received signal of a digital array radar. The proposed method enables two separate one-dimensional parameter estimations of angular velocity and angle, as opposed to the conventional method using two-dimensional searches. By one-dimensionalizing, both parameters can be calculated using monopulse principles, reducing the computational scale to approximately 1/1000 to 1/10,000 that of the conventional method. Meanwhile, computer simulation evaluations confirmed that the proposed method is better than the conventional method in terms of parameter estimation accuracy at a signal to noise power ratio (SNR) of around 15 dB, and it approaches the Cramer-Rao lower bound at high SNRs.

关键词： Maximum likelihood estimation Lower bound Parameter estimation Accuracy Array signal processing Computer simulation Radar Angular velocity Speech processing signal to noise ratio

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Impulse Radio Ultra-Wideband Pulse Generation Employing FPGA for Through Wall Radar Imagery

Impulse Radio Ultra-Wideband Pulse Generation Employing FPGA...

引用

International conference on 6G Communications Networking and signal processing, SGCNSP 2023

作者： Parri, Srinivasulu Kumar, Puli Kishore National Institute of Technology Andhra Pradesh Tadepalligudem India

ISBN: (纸本)9789819778751

The present research study proposes a technique for generating an impulse-radio ultra-wideband (IR-UWB) pulse through the utilization of a field programmable gate array (FPGA) board. Through the wall radar imaging (TWRI) now plays a crucial role in detecting humans during earthquakes, terrorist attacks, by rescuing people and patients whose lives are in danger. Advanced FPGA boards like EDGE Artix-7, ZYNQ ZC 706 were incorporated into the experiment for rapid data acquisition, transmission, and generation of signals and applied to the target. The FPGA scheme comprises three primary elements such as digital clock generation, four delay lines, and an edge combiner (XOR logic) that yields high-frequency ultra-wideband (UWB) pulses in the gigahertz (GHz) range. The use of an FPGA approach with four different architectures with buffers, NAND, NOR and MUXs logics were applied to generate an IR-UWB pulse with high range bandwidth applicable for obstacle detection, tracking and ranging. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Radar imaging

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Addressing Speed-Induced Dispersion in Stepped-Frequency PMCW Radar Systems

Addressing Speed-Induced Dispersion in Stepped-Frequency PMC...

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

作者： Moritz Kahlert Tai Fei Claas Tebruegge Shunqiao Sun Markus Gardill HELLA GmbH & Co. KGaA Lippstadt Germany University of Applied Sciences and Arts Dortmund Germany The University of Alabama Tuscaloosa United States Brandenburg University of Technology Cottbus-Senftenberg Germany

ISBN: (数字)9798350368741

ISBN: (纸本)9798350368758

Phase-modulated continuous wave (PMCW) is a digital modulation waveform being investigated for modern automotive radar systems as a potential alternative to commonly used frequency-modulated continuous wave (FMCW) waveforms. In prior research, we introduced stepped-frequency PMCW (SF-PMCW), a variant of PMCW, which generates a synthetic bandwidth across multiple pulses, allowing lower sampling rates and more cost-effective analog-to-digital converters (ADCs). However, utilizing stepped-frequency waveforms introduces a quadratic phase shift, which causes dispersion in the range-Doppler map, thereby reducing the likelihood of target detection. This work proposes an approach aiming to compensate for the quadratic phase shift. This method decreases the effects of energy dispersion, thereby significantly enhancing target detection performance.

关键词： Frequency modulation digital modulation Radar Object detection Bandwidth Radar signal processing Speech processing Dispersion Analog-digital conversion Automotive engineering

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