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检索条件"任意字段=IEEE Workshop on Statistical Signal and Array Processing"

共 7877 条记录，以下是31-40 订阅

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The Role of Photonic Devices in Advanced Phased array Antennas

The Role of Photonic Devices in Advanced Phased Array Antenn...

引用

International workshop on Antenna Technology: Small Antennas and Novel Metamaterials, iWAT

作者： Dennis W. Prather Department of Electrical and Computer Engineering University of Delaware Phase Sensitive Innovations Inc.

ISBN: (数字)9798331527365

ISBN: (纸本)9798331527372

In this paper we introduce novel radio-frequency-photonic (RF-photonic) components, such as advanced electro-optic modulators (EOMs) and high-power photodetectors (PDs), and their application to advanced phased array systems. In addition, by strongly leveraging the microelectronics manufacturing industry, chip-scale optical systems have been implemented using photonic integrated circuits (PICs), which enable a profound reduction in size, weight, and power (SWaP). Such advances are destined to have a significant impact on the development, application, and commercialization of next generation phased array systems, particularly for phased array transmit (Tx) and receive (Rx) antennas that provide ultra-wideband operation with time-of-flight full beamspace processing, with near unlimited beam bandwidth products (BBP). Accordingly, this paper presents phased array systems that performs massive beamspace processing in such a way as to render a realtime image of the passive RF environment. On the active signal side, a similar phased array system has demonstrated simultaneous, broadband multi-beam, multi-band, and multi-data processing. These systems have achieved upwards of a BBP of over 10 THz.

关键词： Phased arrays Radio frequency array signal processing Transmitting antennas Receiving antennas Streaming media Optical imaging Ultra wideband antennas Microwave antenna arrays Optical arrays

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A 4×4 L-Band Dual-Polarized array with Digital Transmit/Receive Beamforming Using RFSoC

A 4×4 L-Band Dual-Polarized Array with Digital Transmit/Rec...

引用

International workshop on Antenna Technology: Small Antennas and Novel Metamaterials, iWAT

作者： Shiwen Tang Peizhuo Yang Koen Mouthaan Department of Electrical and Computer Engineering National University of Singapore Singapore

ISBN: (数字)9798331527365

ISBN: (纸本)9798331527372

A 4×4 L-band dual-polarized differential-fed patch antenna array with full digital beamforming using radio frequency system-on-chip (RFSoC) is presented. Each of the 16 dual-polarized antenna units has good impedance matching from 1.2 to 1.3 GHz with an isolation larger than 30 dB. The array performance is first validated using analog beamforming at boresight using a 1:16 power divider. The measured realized gain is more than 16.8 dBi within the 1.2 to 1.3 GHz bandwidth. Subsequently, the array is combined with the ZCU216 RFSoC and full digital beamforming for both transmit and receive is demonstrated with independent beamforming capability for each polarization.

关键词： Antenna measurements Power dividers array signal processing Patch antennas Impedance matching Bandwidth Gain measurement L-band Gain Antenna arrays

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2005 ieee/SP 13th workshop on statistical signal processing

2005 IEEE/SP 13th Workshop on Statistical Signal Processing

引用

2005 ieee/SP 13th workshop on statistical signal processing

ISBN: (纸本)0780394046

The proceedings contain 237 papers. The topics discussed include: opportunities for statistical signal processing in high-energy physics;filtering, robust and adaptive methods for track reconstruction;signal reconstruction in a high rate environment for scintillator calorimeters;track identification in high energy physics;simulation of positive normal variables using several proposal distributions;PHD filtering for tracking an unknown number of sources using an array of sensors;composite likelihood estimation for multivariate mixed Poisson distributions;parametric estimation of multi-dimensional affine transformation in the presence of noise: a linear solution;an efficient model for the convergence of the FXLMS algorithm with Gaussian inputs;robustness analysis of gradient identification method for a nonlinear Wiener system;and geometric analysis of filtered-x LMS algorithms.

关键词： signal processing

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High Resolution Millimeter Wave Imaging Based on FMCW Radar Systems at W-Band

High Resolution Millimeter Wave Imaging Based on FMCW Radar ...

引用

ieee Annual Computing and Communication workshop and Conference (CCWC)

作者： Shahrokh Hamidi MR Nezhad-Ahmadi Department of Electrical and Computer Engineering University of Waterloo Canada MMSENSE Technologies Inc. Waterloo Canada

ISBN: (数字)9798331507695

ISBN: (纸本)9798331507701

In this paper, we present a unique 2D high resolution, compact, low-cost, lightweight, and highly accurate millimeter-wave imagery system capable of operating in all weather conditions. We explain different aspects of the imagery system in detail and describe the process of millimeter-wave image formation thoroughly. To create the array, we utilize the Synthetic Aperture Radar (SAR) concept. The imagery system presented in this paper, can strongly compete with the Lidar systems as the resolution limit is at the same level. Furthermore, in contrast to the Lidar systems, our imagery system can operate in heavy rain as well as dense fog and produce high quality images. Finally, we utilize our wide-band custom-made Frequency Modulated Continuous Wave (FMCW) radar, which operates at W-band with 33 GHz bandwidth, for data collection and present the results.

关键词： Image resolution Laser radar Frequency modulation Imaging signal processing algorithms Millimeter wave radar Radar imaging Millimeter wave communication Synthetic aperture radar signal resolution

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Massive MIMO-ISAC Beamforming Design Via Sensing Energy Maximization

Massive MIMO-ISAC Beamforming Design Via Sensing Energy Maxi...

引用

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

作者： Fang Li Bin Liao College of Electronics and Information Engineering Shenzhen University Shenzhen China

ISBN: (数字)9798350368741

ISBN: (纸本)9798350368758

In this paper, we investigate the problem of transmit beamforming design for massive multiple-input multiple-output integrated sensing and communications (MIMO-ISAC) systems, through sensing energy maximization. Most of existing methods for transmit beamforming design suffer from high computational complexity in massive MIMO systems, prompting us to develop implementation-friendly designs. Specifically, we employ a structured beamformer composed of the communication precoder and sensing beamformer to simplify the design. The corresponding problem is formulated as maximizing the radar sensing performance in terms of the energy radiated towards the target to ensure sufficient echo from the target, while guaranteeing the signal-to-interference-plus-noise ratio (SINR) for each communication user. In particular, we present two designs with different but affordable complexities based on the instantaneous channel state information (CSI) and statistical CSI, and derive the solutions to them. Numerical examples are carried out to demonstrate the effectiveness of the proposed beamforming designs.

关键词： array signal processing Simulation Radar Massive MIMO Interference Integrated sensing and communication Computational complexity Speech processing MIMO communication signal to noise ratio

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Proceedings of the ieee Sensor array and Multichannel signal processing workshop

Proceedings of the IEEE Sensor Array and Multichannel Signal...

引用

ieee Sensor array and Multichannel signal processing workshop, SAME 2000

ISBN: (纸本)0780363396

The proceedings contain 110 papers. The topics discussed include: prospectives in STAP research;a parametric spatio-temporal channel estimation technique for FDD UMTS uplink;matched field processing for CDMA communication systems in a multipath channel;all-digital ppm impulse radio for multiple-access through frequency-selective multipath;cellular and PCS propagation measurements and statistical models for urban multipath on an antenna array;coherent multichannel reception of binary modulated signals with independent Rician fading;downlink intercell interference cancellation in WCDMA by exploiting excess codes;multiple-input multiple-output (MIMO) radio channel measurements;oversampling diversity versus dual antenna diversity for chip-level equalization on CDMA downlink;and mean convergence rate of a decision directed adaptive beamformer with gaussian interference.

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2022 ieee 12th Sensor array and Multichannel signal processing workshop, SAM 2022

2022 IEEE 12th Sensor Array and Multichannel Signal Processi...

引用

12th ieee Sensor array and Multichannel signal processing workshop, SAM 2022

ISBN: (纸本)9781665406338

The proceedings contain 94 papers. The topics discussed include: federated channel learning for intelligent reflecting surfaces with fewer pilot signals;statistical analyses of measured forward-looking sonar echo data in a shallow water environment;passive angle-doppler profile estimation for narrowband digitally modulated wireless signals;dynamic TDD enabled distributed antenna array massive MIMO system;joint source enumeration and direction finding without eigendecomposition for satellite navigation receiver;sparse signal recovery using a binary program;gradient-descent adaptive filtering using gradient adaptive step-size;non-coherent source localization with distributed sensor array networks;and joint location and channel error optimization for beamforming design for multi-RIS assisted MIMO system.

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Long Range Surveillance MIMO Radar at 24 GHz

Long Range Surveillance MIMO Radar at 24 GHz

引用

ieee Annual Computing and Communication workshop and Conference (CCWC)

作者： Shahrokh Hamidi Kenichi Mori Yoshinobu Oyama Takao Nishikawa Makoto Kitagawa M.R Nezhad-Ahmadi Department of Electrical and Computer Engineering University of Waterloo Canada R&D Department Corporate Strategy Division Optex Co. Ltd. Japan Nagase Co. Ltd. Japan MMSENSE Technologies Inc. Canada

ISBN: (数字)9798331507695

ISBN: (纸本)9798331507701

Recently, radar-based detection and tracking at millimeter-wave frequencies have become increasingly popular. However, the performance of the radar systems operating at millimeter-wave frequencies has been mainly limited to short ranges which makes them unsuitable for many practical applications. In this paper, long range detection and tracking for multiple targets at millimeter-wave frequencies is presented based on our custom-made Multiple Input Multiple Output (MIMO) radar system. The structure of the radar and the innovation in the digital signal processing unit will make it possible to perform detection and tracking for targets at far ranges. To the best of our knowledge, this is the first millimeter-wave system which is capable of detecting and tracking human at 600 m radial distance from the radar system. We present a complete statistical analysis of the combined land clutter and the noise of the system. This paves the way for the implementation of the Constant False Alarm Rate (CFAR) algorithm to detect the desired targets. Following the detection block the multi-target tracking is performed. The tracking unit is implemented based on the Kalman filtering and constant velocity motion model while the data association is based on the state-of-the-art Joint Probabilistic Data Association Filter (JPDAF). The algorithms have been implemented using the C programming language, and fully real-time processing has been achieved. The results presented in the paper are based on the experimental data gathered from realistic scenarios which demonstrate the capability of the radar system, which operates at 24 GHz, as well as the algorithms,

关键词： Target tracking Radar clutter MIMO radar Radar detection signal processing algorithms LoRa Radar Millimeter wave radar Radar tracking Real-time systems

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2004 ieee Sensor array and Multichannel signal processing workshop

2004 IEEE Sensor Array and Multichannel Signal Processing Wo...

引用

2004 Sensor array and Multichannel signal processing workshop

ISBN: (纸本)0780385454

The proceedings contain 140 papers from the 2004 ieee Sensor array and Multichannel signal processing workshop. The topics discussed include: signal processing for radio astronomical arrays;multichannel array processing in radar: state of the art, hot topics and way ahead;detection and localization of a moving biochemical source in a semi-infinite medium;versatile robust capon beamforming: theory and applications;downlink transmit beamforming in multi-user MIMO systems;low-rank decomposition of multi-way arrays: a signal processing perspective;high spectral-efficiency multiple-antenna wireless using single-antenna terminals;time reversal matched field;and passive subtractive beamformer for near-field sound sources.

关键词： signal processing

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ieee workshop on statistical signal processing Proceedings

IEEE Workshop on Statistical Signal Processing Proceedings

引用

ieee workshop on statistical signal processing, SSP 2003

ISBN: (纸本)0780379977

The proceedings contain 156 papers. The topics discussed include: some challenges in statistical signal processing some thoughts on those challenges and some challenges to those challenges;nonparametric hypothesis testing for a spatial signal;an indexed modeling and experimental strategy for biosignatures of pathogen and host;Bayesian computer-intensive methods for statistical signal processing;Bayesian computer-intensive methods for statistical signal processing;application-optimized quantizers for time delay estimation in sensor networks;critical power for connectivity with cooperative transmission in wireless ad hoc sensor networks;hierarchical censoring sensors for change detection;and coding of Gauss-Markov sources with side information at the decoder.

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