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检索条件"任意字段=2018 3rd International Conference on Communication,Image and Signal Processing（CCISP 2018）"

共 158 条记录，以下是91-100 订阅

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Performance Comparison of Sparse Multipath Channel Estimation Models for B5G Network 3

Performance Comparison of Sparse Multipath Channel Estimatio...

引用

3rd IEEE international Virtual conference on Innovations in Power and Advanced Computing Technologies, i-PACT 2021

作者： Kumar, K. Vijaya Bhattacharyya, Budhaditya School of Electronics Engineering Vellore Institute of Technology Tamil Nadu Vellore India

ISBN: (纸本)9781665426916

Any OFDM-based wireless communication receiver relies on channel estimation. Across a wireless multipath fading channel, there is a growing need for high-data-rate communication, which typically demands previous channel knowledge at the receiver. The OFDM system is the multicarrier transmission technology, permits the transmission of wireless signals at high data rates. Onto the channel estimate, the OFDM plays a major role;and more researches have been focused on the development of new channel estimation methods for successful signal detection over time. In this research work, a compact review is undergone of the different algorithms adopted for channel estimation in OFDM. Here, 20 recent papers are collected from different journals that have been framed during different years (2018 to 2021). In addition, the features and challenges of each of the collected research papers on channel estimation in OFDM are manifested in order to grab more worthy information about the research. In addition, the recorded performance of the collected research papers is portrayed, and this might aid the researchers, who attempt to develop hybrid techniques using the conventional models. Ultimately, the research gaps identified in the different channel estimation models in OFDM are manifested to guide future researchers in developing and organizing the new intelligent channel estimation models. © 2021 IEEE.

关键词： Digital signal processing

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Research on Fault signal processing Method of New ANPC Inverter Circuit

Research on Fault Signal Processing Method of New ANPC Inver...

引用

2018 3rd international conference on communication,image and signal processing（ccisp 2018）

作者： Zeng Jia-qi Han Jian-ding Li Xue-feng Lei Xiao-ben Wang Chuan-qi Aeronautics Engineering Institute Air Force Engineering University

Due to the good adaptability of wavelet theory in signal processing, its current application fields are very extensive. This paper first summarizes the application fields of current wavelet theory and analyzes the characteristics of wavelet analysis theory. Then, several methods for fault diagnosis of traditional inverter circuits are listed. The limitations of their fault diagnosis in new multi-level inverter circuits are analyzed. The wavelet analysis is applied to the fault diagnosis of multi-level inverter circuits. After analyzing the fault mode of the multi-level inverter circuit, the wavelet packet is used to extract the fault features, and then the support vector machine theory is combined to diagnose the fault. Finally, the method described in this paper is verified by Simulink simulation software, and the accuracy of the method is more than 90%. The method is feasible and effective.

关键词： Wavelet Research on Fault signal processing Method of New ANPC Inverter Circuit

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Deflection angle detection of the rotor and signal processing for a novel rotational gyroscope 3rd

Deflection angle detection of the rotor and signal processin...

引用

3rd international conference on Machine Learning and Intelligent communications, MLICOM 2018

作者： Chen, Dianzhong Zhang, Zhongzhao Communication Research Center Harbin Institute of Technology Harbin150001 China

ISBN: (纸本)9783030005566

Differential capacitance detection, a common high resolution proof mass displacement detection scheme, is adopted in the gyroscope to measure the rotor deflection angle by installing an electrode with four poles under the rotor disk, which forms four detection capacitors and opposite ones form a differential capacitance detection pair. Theoretical inference explains the approximately proportional relationship between the capacitance difference and the rotor deflection angle. Simulation in Ansys Maxwell verifies the inference and confirms the differential capacitance detection range of the rotor deflection angle to 0–1°, limited by linearity. A signal processing system is constructed, obtaining a DC output voltage proportional to the measured input angular speed. Experiment shows the fabricated gyroscope with the designed differential capacitance detection pairs exhibits excellent performance with the resolution and the bias stability of 0.1 °/s and 0.5 °/h, respectively. © ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2018.

关键词： Gyroscopes

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VLSI Implementation of Braun Multiplier using Full Adder 3

VLSI Implementation of Braun Multiplier using Full Adder

引用

3rd international conference on Current Trends in Computer, Electrical, Electronics and communication, CTCEEC 2017

作者： Deeksha Kiran, D. Shilpa, R. Kavyashree, B. 8th Sem EC VVCE Mysuru India

ISBN: (纸本)9781538632420

The demand increasing for the high fidelity portable devices has laid emphasis on the development of low power and high performance systems. Binary addition is the most basic operation found in arithmetic components. The most basic arithmetic operation is addition and the most fundamental arithmetic component of the processor is an adder. Transistor count is a primary concern which largely affects the design complexity of many function units such as multiplier and algorithmic logic unit (ALU). In application such as Digital signal processing (DSP) architecture, microprocessor, microcontroller and data processing units, Full adder is an important component In the next generation processors, fundamental computation units should be incorporated with a design, such as multipliers. The characterization and optimization of such multipliers will depend on the comparison and choice of multiplier modules in system design. This indicates a need to design multipliers towards the development of power-efficient high performance systems. To achieve higher processing speeds, parallel multipliers are usually adopted at the expense of high area optimization. This paper gives a comparison for the performance of different Full adder cells based on their transistor count and uses architecture of 4-bit and 8-bit Braun multiplier for the successful implementation of layouts using cadence tool for 180nm technology. © 2017 IEEE.

关键词： Digital signal processing

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Transfer Learning with Joint Distribution Adaptation and Maximum Margin Criterion

Transfer Learning with Joint Distribution Adaptation and Max...

引用

2018 3rd international conference on communication,image and signal processing（ccisp 2018）

作者： Pengju Wang Luxi Lu Jian Li Wenya Gan National Key Laboratory on Blind Signal Processing

Transfer learning aims to transfer knowledge from the labelled source domain data to build a good classifier for the target domain data which has few labels or none. Existing feature-based transfer learning methods seek to transform the data to a new feature space under which the distribution discrepancy is reduced. However, data in different classes may not be easy to be separated in the new feature representation. Therefore, a modified transfer learning algorithm with Joint Distribution Adaptation(JDA) and Maximum Margin Criterion(MMC) is put forward in this paper, which we call MMC-JDA for short. MMC-JDA is aimed at minimizing the distribution discrepancy between two domains and maximizing the separability of each class at the same time. Comparative experiments on 16 cross-domain public image datasets show that MMC-JDA is effective and performs better than several common transfer learning methods.

关键词： domain MMC Transfer Learning with Joint Distribution Adaptation and Maximum Margin Criterion

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Multi-dimensional Ambiguity Function for Coherent Pulsed-LFM FDA Radar

Multi-dimensional Ambiguity Function for Coherent Pulsed-LFM...

引用

2018 3rd international conference on communication,image and signal processing（ccisp 2018）

作者： Huake Wang Guisheng Liao Jingwei Xu Shengqi Zhu National Lob of Radar Signal Processing Xidian University

Frequency diverse array(FDA) which employs a small frequency increment between adjacent elements can provide a range-angle-dependent beampattern with new application potentials. In this paper, the proposed coherent pulsed-LFM FDA scheme enables full spatial coverage with a single transmit waveform, wherein the transmit beamforming can be performed at the receiver with flexible signal processing means. In the coherent pulsedLFM FDA radar configuration, the range sidelobe level(SLL) can be reduced significantly. Analyses of the multi-dimensional ambiguity function in terms of the low sidelobe characteristics, spatial coverage capability, and resolution properties in range, angle and Doppler domains are given by ambiguity function profiles. Comparisons with conventional phased array and MIMO(Multiple-Input Multiple-Output) radar are presented in the simulation. Results demonstrate the superiority of the proposed approach in angular coverage and sidelobe level with simplicity in engineering.

关键词： LFM Multi-dimensional Ambiguity Function for Coherent Pulsed-LFM FDA Radar FDA

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Designing of Radix-2 Butterfly for Digital signal Processor for FFT Computation 3rd

Designing of Radix-2 Butterfly for Digital Signal Processor ...

引用

3rd international conference on Information and communication Technology for Intelligent Systems (ICTIS)

作者： Kulkarni, Prasad Hogade, B. G. Kulkarni, Vidula Babasaheb Gawde Inst Technol Mumbai Maharashtra India Terna Engn Coll Navi Mumbai India Sanpada Coll Commerce & Technol Navi Mumbai India

ISBN: (纸本)9789811317477;9789811317460

Digital signal processor (DSP) is widely used in wireless communications to compute fast Fourier transform (FFT) or its inverse (IFFT). This paper presents the butterfly unit (BU) suitable for DSP to compute FFT/IFFT. The dynamic range of input sequence is increased by representing them using 16-bit floating format. The BU performs trivial addition as well as complex multiplication in a single cycle. The proposed BU is free from multiple processing elements. This BU also eliminates the rounding of twiddle coefficients occurred in fixed-point data representation and reduces the error.

关键词： FFT BU IFFT DSP

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Performance Analysis of the Universal Filtered Multi-Carrier(UFMC) Waveform for 5G System

Performance Analysis of the Universal Filtered Multi-Carrier...

引用

2018 3rd international conference on communication,image and signal processing（ccisp 2018）

作者： Wang Yongxue Wang Sunan Wu Weiqiang School of Electronic & Communication Engineering Collage of Shenzhen Polytechnic

In the 5 generation mobile communication（5G） system, it is required to provide three different types of services, including enhanced Mobile Broadband（eMBB）, massive machine-type communication（mMTC）, and ultra-reliable and low-latency communication（URLLC）.To meet all those demand in 5G, the waveform is crucial. Although the CP-OFDM waveform has been wildly used in 4G, it is hardly to satisfy the requirements of 5G.A lot of candidate waveforms are discussed for 5G system, including UFMC, FBMC, F-OFDM etc. In this paper, the UFMC waveform is discussed, the different filters and different frequency width of the subband in UFMC system are studied and appropriate parameters for the system are recommended.

关键词： Waveform for 5G System Performance Analysis of the Universal Filtered Multi-Carrier

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A Method of JTIDS Feature Extraction Based on Nonlinear Transformation of High Order Cumulant

A Method of JTIDS Feature Extraction Based on Nonlinear Tran...

引用

2018 3rd international conference on communication,image and signal processing（ccisp 2018）

作者： Lin Li Yuxiang Yang Huafeng Peng Yongqiang Wu National Key Laboratory on Blind Signal Processing

In the view of the target dense region, the feartures of different target's time difference are not obvious, which leads to the problem of JTIDS multi-user sorting useless based on time difference. A nonlinear transformation sorting algorithm of high-order cumulant based on doppler frequency shift is proposed: First of all,make the nonlinear transformation based on the second order cumulant,the sixth order cumulant, the normalized skewness and the normalized kurtosis for single station signals respectively, achiece a sharp rise occurs in the degree of the frequency shift;Then,build the eigenvector according to the transformation;Finally,use spectral clustering algorithm to cluster the datasets. Simulation experiments were carried out,based on four targets which could not be sorted by the time difference. The result showed that compared with the traditional method,the success rate of our method was significantly improved, and the effectiveness of the algorithm was verified.

关键词： A Method of JTIDS Feature Extraction Based on Nonlinear Transformation of High Order Cumulant JTIDS

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Applications of Stacked Autoencoder Network on communication Transmitter Individual Feature Extraction

Applications of Stacked Autoencoder Network on Communication...

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2018 3rd international conference on communication,image and signal processing（ccisp 2018）

作者： Lei Yingke Liao Xichang National University of Defense Technology

Aiming at the problem that square integral bispectrum cannot accurately represent communication transmitter individuals with the same type under small sample, a communication transmitter individual deep square integral bispectra feature extraction method based on stacked autoencoder network is proposed. The square integral bispectrum(SIB) features of real communication transmitters signals were extracted firstly from the instantaneous frequency. Then the deep SIB features were represented through the layer-wise semi-supervised learning by a stacked autoencoder network. Experiments on real FM communication transmitter signals showed that the identification accuracy is around 80% and the results of multiple experimental variables setting indicated the robustness of the algorithm proposed.

关键词： SAE Applications of Stacked Autoencoder Network on communication Transmitter Individual Feature Extraction

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