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检索条件"主题词=music algorithm"

共 373 条记录，以下是21-30 订阅

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Research of Modified music algorithm based on Vector Matrix

Research of Modified MUSIC Algorithm based on Vector Matrix

引用

7th International Conference on MEMS, NANO and Smart Systems (ICMENS 2011)

作者： Wang, Xiaoyao Zhang, Guojun Wang, Panpan Liu, Xibao Zhang, Wendong N Univ China Key Lab Instrumentat Sci & Dynam Measurement Minist Educ Taiyuan Peoples R China

ISBN: (纸本)9783037853122

Processing the matrix signals of vector hydrophone was critical to the research on engineering application of vector matrix. However, such processing required massive computation. Accordingly, a vector matrix based modification of music algorithm was introduced to solve such issue. The said modification lowered computation amount by applying the Wiener Filter in music algorithm to skip decomposition of eigenvalues. The method of vector hydrophone Uniform Linear Array (ULA) was adopted to test the performance of the modified algorithm. The computer simulated outcome has verified the effectiveness of such modified music algorithm, showing that the modified music algorithm can clearly distinguish the coherent signals, and is superior to the original music algorithm.

关键词： Vector hydrophone ULA music algorithm Wiener filter coherent signals

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The application of music algorithm in the planar array antenna 5

The application of MUSIC algorithm in the planar array anten...

引用

IEEE International Conference on Signal Processing, Communications and Computing ICSPCC 2015

作者： Sun Cui-zhen Northwestern Polytech Univ Sch Elect & Informat Xian Peoples R China Xian Univ Sci & Technol Sch Commun & Informat Engn Xian Peoples R China

ISBN: (纸本)9781479989201

The music algorithm is researched in the planar antenna array. The conventional direction of arrival (DOA) estimation method in the planar array antennas uses the technology of beam scanning. It needs a lot of array element. To the finite conformal array DOA estimation, the resolution ratio will be affected by the Rayleigh limit. While, the music algorithm can fully utilize the orthogonality of noise subspace and signal subspace, it can achieve the DOA estimation through the spectrum peak search. Based on the planar array antenna, the Bartlett beam-forming method the CAPON minimum variance method and the music algorithm are analyzed and simulated. The simulation results show that the music algorithm has higher resolution relative to the two traditional algorithms.

关键词： Uniform circular array antenna DOA estimation music algorithm CAPON minimum variance method Bartlett beam-forming method

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Performance of Angle of Arrival Detection Using music algorithm in Inter-Satellite Link 2

Performance of Angle of Arrival Detection Using MUSIC Algori...

引用

International Conference on Signals and Systems (ICSigSys)

作者： Muhammad, Cahya Budi Wijanto, Heroe Setiawan, Antonius Darma Telkom Univ Sch Elect Engn Bandung Indonesia

ISBN: (纸本)9781538656891

An attitude of satellite is not always static, sometimes it moves randomly and the antenna pointing of satellite is harder to achieve line of sight communication to other satellite when it is outage by tumbling effect. In order to determine an appropriate direction of satellite antenna in inter-satellite link, this paper analyze estimation performance of the direction of arrival (DoA) using music algorithm from connected satellite signal source. It differs from optical measurement, magnetic field measurement, inertial measurement, and global positioning system (GPS) attitude determination. The proposed method is characterized by taking signal source from connected satellites, after that the main satellite processed the information to obtain connected satellites antenna direction. The simulation runs only on the direction of azimuth. The simulation result shows that music algorithm processing time is faster than satellite movement time in orbit on altitude of 830 km with the period of 101 minutes. With the use of a 50 elements array antenna in spacing of 0.5 wavelength, the total of 20 angle of arrival (AoA) can be detected in 0.98 seconds of processing time when using music algorithm.

关键词： Direction of Arrival inter-satellite link (ISL) music algorithm attitude determination tumbling effect

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High-Resolution Short-Range Wideband FMCW Radar Measurements Based on music algorithm

High-Resolution Short-Range Wideband FMCW Radar Measurements...

引用

26th IEEE International Instrumentation and Measurement Technology Conference

作者： Abou-Khousa, M. A. Simms, D. L. Kharkovsky, S. Zoughi, R. Missouri Univ Sci & Technol Dept Elect & Comp Engn Appl Microwave Nondestruct Testing Lab Rolla MO 65409 USA

This paper is focused on utilizing short-range wideband FMCW radar measurements to evaluate multilayered dielectric structures. The performance of the music algorithm in resolving closely-spaced spectral lines corresp... 详细信息

ISBN: (纸本)9781424433520

关键词： FMCW radar multilayered structures music algorithm spectrum estimation

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Time-angle spectrum sensing based on sliding window music algorithm

Time-angle spectrum sensing based on sliding window MUSIC al...

引用

4th International Conference on Multimedia Information Networking and Security (MINES)

作者： Du Liping Liu Feifei Chen Yueyun Univ Sci & Technol Beijing Dept Commun Sch Comp & Commun Engn Beijing 100083 Peoples R China

ISBN: (纸本)9780769548524

Spectrum sensing is one of the key issues in cognitive radio. To explore all dimensions of the spectrum space, a sliding window music based spectrum sensing method is proposed to offer the spectrum holes in time-angle dimension. Simulation results show that the proposed method has better detection performance than conventional energy detection as well as high estimation accuracy.

关键词： Spectrum sensing music algorithm time-angle dimension

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Improvement to the Traditional music algorithm for MIMO Radar Angle Estimation

Improvement to the Traditional MUSIC Algorithm for MIMO Rada...

引用

IEEE International Radar Conference (RadarCon)

作者： Liu, Jingping Liu, Song Zhao, Huichang Huo, Kairui Nanjing Univ Sci & Technol Sch Elect & Opt Engn Minist Key Lab JGMT Nanjing 210094 Jiangsu Peoples R China

ISBN: (纸本)9781479982325

The traditional music algorithm for MIMO radar angle estimation has been improved to reduce the amount of arithmetic operations. The N-th power of the inverse matrix is applied to approximate the noise subspace to eliminate the requirement of distinguishing the signal and the noise subspace. The combination of the eigenvalues and eigenvectors replaces the N-th power of the inverse covariance matrix. The improved algorithm has been implemented by DSP. The simulation and measurement results show this music algorithm can be used to estimate the target angle accurately.

关键词： MIMO radar music algorithm angle estimation

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Separation of Coherent Signals Using A Novel music algorithm in Multipath Environments

Separation of Coherent Signals Using A Novel MUSIC Algorithm...

引用

International Conference on ICT Convergence (ICTC) - Future Creative Convergence Technologies for New ICT Ecosystems

作者： Wang, Xin Ryu, Heung-Gyoon Chungbuk Natl Univ Dept Elect Engn Chongju 361763 South Korea

ISBN: (纸本)9781479906987

A novel music algorithm for angle of arrival (AOA) estimation is proposed based on processing the covariance matrix of the array output signals. Unlike the conventional music algorithm which is an effective method for AOA estimation but it can only do with incoherent signals, the proposed method can solve the problem of the coherent and related signal that is more practical in an actual communication environment. And we consider the problems of AOA estimation under a multipath environment in this paper. By processing the covariance matrix of the array output signals, the rank of the signals is restored to full rank which can effectively estimate AOA of the incident signals. Simulation results obviously shows better performance of proposed method, compared with convention music algorithm.

关键词： music algorithm AOA OFDM Multipath

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A Reduced-dimensional music algorithm with Modulus Constraint Based on Electromagnetic Vector Sensor Array

A Reduced-dimensional Music Algorithm with Modulus Constrain...

引用

Asia-Pacific-Signal-and-Information-Processing-Association Annual Summit and Conference (APSIPA ASC)

作者： Li, Huiyong Zhang, Yuanfang Xie, Julan Univ Elect Sci & Technol China Chengdu Peoples R China

ISBN: (纸本)9789881476807

To reduce the large computation of joint direction-of-arrival (DOA) and polarization parameters estimation based on electromagnetic vector sensor array, a reduced-dimensional music algorithm with modulus constraint (MC-RDmusic) is proposed. The MC-RDmusic algorithm estimates the DOA and polarization parameters in two separate steps. In step one, DOA parameter is separated from polarization parameters and estimated by music algorithm;in step two, cost function is constructed according to constraint condition and polarization parameters are obtained with closed-form formulas. Compared with traditional music algorithm, MC-RDmusic algorithm avoids the spectrum peak search of DOA and polarization parameters at the same time, greatly improves the operation efficiency. Because of the one-to-one correspondence between DOA angle and polarization parameters, MC-RDmusic algorithm avoids parameters matching problem compared with ESPRIT algorithm. The computer simulation results verify the correctness of MC-RDmusic algorithm, and as well as its high success rate and precision of the angle estimation.

关键词： Electromagnetic vector sensor parameter estimation music algorithm spectrum peak search

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Fast Spectrum Estimation in 2-D Direction Finding with music algorithm

Fast Spectrum Estimation in 2-D Direction Finding with MUSIC...

引用

2006 8th International Conference on Signal Processing

作者： WU S.L. LUO J.Q. Lab.308 Hefei Electronic Engineering Institute

ISBN: (纸本)0780397371

＜正＞Principles of two dimensional music algorithm has been introduced in this *** methods for searching the spectrum peaks are indicated,i.e.,method in solving the inflexions of spectrum function and method with variable searching *** prove that the two methods can obviously improve the speed in searching direction finding with music algorithm. Key words:music algorithm;Spectrum estimation;Quasi real-time;Inflexions;Variable step size

关键词： Inflexions music algorithm Quasi real-time Spectrum estimation Variable step size

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Rotor Faults Detection in Variable Frequency Motor Based on music algorithm

引用

2nd International Conference on Optical, Electronic Materials and Applications (OEMA 2012)

作者： Liu, Fen Xu, Wu Nong Hu, Wen Biao Bengbu Naval Petty Officer Acad Electromech Dept Bengbu 233012 Peoples R China Naval 902 Plant Shanghai 200083 Peoples R China Navy 92854 Army Zhanjiang 524005 Peoples R China

ISBN: (纸本)9783037854303

When the variable frequency motor rotor failed, the harmonic components of stator current intensified, which makes the extraction of fault characteristics more difficult. To solve the problem, on-line detection way of rotor faults based on the music (Multiple Signal Classification) algorithm is presented, which the current signal of inverter DC side is acquired and processed by the algorithm to obtain the fault feature component. The experimental results show the method is simple and effective, which improve the reliability of the rotor fault diagnosis.

关键词： Variable Frequency Motor Rotor music algorithm Fault Detection

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