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检索条件"主题词=MUSIC algorithm"

共 374 条记录，以下是41-50 订阅

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A Reactance Domain Fourth-order music algorithm Using 13-element ESPAR Antenna 12

A Reactance Domain Fourth-order MUSIC Algorithm Using 13-ele...

引用

2015 12th Annual IEEE Consumer Communications and Networking Conference (CCNC)

作者： Kim, Bong-Jun An, Changyoung Ryu, Heung-Gyoon Chungbuk Natl Univ Dept Elect & Engn Cheongju Chungbuk South Korea

ISBN: (纸本)9781479963904

Electronically steerable parasitic array radiator (ESPAR) antenna is well known for its low-power consumption, small-size antenna. In this paper, a novel fourth-order music algorithm using a 13-element ESPAR antenna for direction of h-order music algorithm is that it is insensitive to additive Gaussian noise regardless of whether it is white or colored so it can improve the precision of the DOA estimation. By comparing with the conventional algorithm, our proposed algorithm can obtain more than 45dB gain under SNR=10dB, which can obviously show an outstanding performance improvement. Finally, computer simulation results show that the novel algorithm can resolve up to one impinging signal with less than 0.15 degrees under SNR=0dB and provide an estimation with less than 0.6 degrees under SNR=5dB for two impinging signals coming from different angles.

关键词： music algorithm DOA fourth-order music algorithm ESPAR antenna

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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...

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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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Relationship between Direction of Arrival Estimation with music algorithm and Number of Array Elements 6

Relationship between Direction of Arrival Estimation with MU...

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2015 International Conference on Information and Communication Technology Convergence (ICTC)

作者： Paudel, Prabesh Oh, Joo-Seong Back, Jong-sang Jeong, Min A. Lee, Seong Ro Mokpo Natl Univ Dept Elect Engn Mokpo South Korea Mokpo Natl Univ Dept Comp Engn Mokpo South Korea Mokpo Natl Univ Dept Elect & Engn Mokpo South Korea

ISBN: (纸本)9781467371162

Direction of arrival (DOA) estimation has been a vital area of research since few decades due to its importance in applications like wireless communication, navigation radar, sonar etc. The resolution being one of the main challenges in the direction of arrival estimation can be enhanced by array antenna system with reliable signal processing. In this paper we simulate the high resolution subspace based DOA algorithm called Multiple Signal Classification (music) on a uniform linear array in the presence of ideal white Gaussian noise. This paper provides the relation between DOA estimation and number of array elements using music algorithm. MUSIA methods give more accurate and smooth resolution of the signals.

关键词： DOA music algorithm Number of array elements

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Study on the improvement of music algorithm fire wireless communication 4

Study on the improvement of MUSIC algorithm fire wireless co...

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4th International Conference on Intelligent System and Applied Material (GSAM)

作者： Bin, Ni Kunming Police Fire Brigade Command Sch Yunnan 650208 Kunming Peoples R China

ISBN: (纸本)9783038353140

music algorithm has good spatial resolution, provides the possibility to further improve the performance of fire radio communication system, but the algorithm in the target range rapidly changing circumstances poor stability. Aiming at this problem, this paper proposes a music algorithm based on time domain analytical signals (TAmusic, Time-domain Analysis music). The TAMUISC algorithm first constructs analytical time-domain signal;then the time domain analytical signal covariance matrix;finally the covariance matrix eigenvalue decomposition, the noise subspace estimation results of spatial spectrum. The simulation results show that, TAmusic algorithm in target azimuth change quickly, compared with the conventional music algorithm, need a short observation time, observation has smaller variance.

关键词： wireless fire array signal processing music algorithm time domain analytical signal

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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...

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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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Application of music algorithm for imaging point reflectors near transmitting and receiving array

Application of music algorithm for imaging point reflectors ...

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9th International Conference on Ground Penetrating Radar (GPR 2002)

作者： Miwa, T Arai, I Univ Electrocommun Dept Elect Engn Chofu Tokyo 1828585 Japan

ISBN: (纸本)0819445223

Subsurface imaging techniques have been discussed with music algorithm to locate point reflectors. Generally, a radar signal received by a spatial array must be decorrelate as pre-processing for the music algorithm. Since most of decorrelation techniques are based on a plane wave incidence model, it is difficult to apply the decorrelation technique for the radar targets around the near field of the array. In this report, we introduce a new decorrelation technique with transmitting and receiving array for targets near the array and apply the music algorithm for estimation of the 2D position of the point targets in crosshole tomographic measurement. Simulation results show that this method has much higher resolution and accuracy than the conventional diffraction stack method. Moreover, we discuss the relationship between the S/N ratio and the geometrical separation.

关键词： super-resolution music algorithm array signal processing target imaging point reflector borehole radar

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Azimuth estimate of ship with music algorithm

Azimuth estimate of ship with MUSIC algorithm

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2nd International Conference on Space Information Technology

作者： Shan Liang Jin Ning Chen Lijun China Ji Liang Univ Coll Informat Engn Hangzhou 310018 Peoples R China SouthEast Univ Dept Radio Engn Nanjing 210096 Jiangsu Peoples R China

ISBN: (纸本)9780819469601

A method of ship azimuth estimate with music algorithm is proposed in this paper. First of all, music algorithm is expatiated. Then, music algorithm and Bartlett algorithm are applied to deal with underwater experimental data and estimate the direction of arrival which can be used to figure out the azimuth of the ship. As a result, music algorithm is a more effective method than Bartlett algorithm in estimating the azimuth of ship.

关键词： music algorithm subspace DOA

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A Blind Carrier Frequency Offset Estimation algorithm for OFDMA Based on Improved music algorithm

A Blind Carrier Frequency Offset Estimation Algorithm for OF...

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4th International Conference on Natural Computation (ICNC 2008)

作者： Wang, Anding Qiu, Yuyang Lin, Lili Li, Shiju Zhejiang Univ Dept Elect & Informat Hangzhou Zhejiang Peoples R China Zhejiang Gongshang Univ Coll Stat & Math Hangzhou Zhejiang Peoples R China Zhejiang Gongshang Univ Coll Informat & Elect Hangzhou Zhejiang Peoples R China

ISBN: (纸本)9780769533049

This paper proposes a blind carrier frequency offset (CFO) estimation algorithm based on improved music algorithm for the interleaved orthogonal frequency division multiple access (OFDMA) uplinks. The main advantages of this method are that it obtains the CFOs of all users simultaneously within only one OFDMA block and has high accuracy due to the application of data reconstruction and the special periodic characteristic of the received signal. Unlike other existing CFO algorithms, this algorithm doesn't need any precondition knowledge of the channel, the training sequence or even pilot signal, therefore it saves frequency band effectively and degrades the computational complexity greatly. Because of estimation quickly it is suitable for the rapid change channel especially. Simulation results show that this algorithm has good performance even under low SNR condition and improves the variance performance a lot.

关键词： OFDMA CFO estimation music algorithm

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An Improved music algorithm for Angular Superresolution in Scanning Antenna

An Improved MUSIC algorithm for Angular Superresolution in S...

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International Conference on Computational Problem-Solving (ICCP)

作者： Xia, Yonghong Zhang, Yin Li, Wenchao Huang, Yulin Yang, Jianyu Univ Elect Sci & Technol China Sch Elect Engn Chengdu 611731 Peoples R China

ISBN: (纸本)9781479921508

Angular resolution of real aperture radar is limited by antenna beam width. Because of the constraints of antenna size and other physical factors, it is difficult to obtain high azimuth resolution. In this paper, angular superresolution method in array signal processing is applied to scanning antenna model, and an extension and improvement of the well-known Multiple Signal Classification (music) algorithm is proposed when a real beam scanning antenna is used. Different from the classical music algorithm, the new method is realized in the framework of beamforming, which is not based on subspace decomposition and the number of sources is hence not required for direction finding. This enables us to avoid performance deterioration caused by incorrect source number estimation. To verify the theoretical analysis, computer simulations are implemented and comparisons with other algorithms are made.

关键词： angular superresolution scanning radar beamforming music algorithm

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Extending music algorithm by using virtual array technique

Extending MUSIC algorithm by using virtual array technique

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IEEE Southeastcon 99 Conference on Technology on the Brink of 2000

作者： Wang, S Zhou, XL Shanghai Jiao Tong Univ Dept Elect Engn Shanghai Peoples R China

ISBN: (纸本)0780352378

In array signal processing, one is often interested in simultaneously estimating the directions and frequencies of uncorrelated narrow-band radiating sources having different center frequencies. In this paper we present a new high-resolution signal estimation algorithm which can estimate the spatial direction Bi and temporal frequency f(i) of each source by using the virtual time-and-space array technique with music algorithm. The virtual linear array consists of one spatial subarray and one virtual temporal subarray and the parameter pair (theta(i), f(i)) of each source can be easily obtained and automatically coupled. The proposed approach is simple and direct. Simulation results are presented to demonstrate the performance of the proposed technique.

关键词： array signal processing music algorithm DOA estimation frequency estimation virtual array

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