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检索条件"主题词=MUSIC algorithm"

共 373 条记录，以下是51-60 订阅

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On Doppler Ambiguity Estimation for Millimeter FM-CW Radar by Using music algorithm

On Doppler Ambiguity Estimation for Millimeter FM-CW Radar b...

引用

International Symposium on Antennas and Propagation (ISAP)

作者： Horiuchi, Takahiro Yamada, Hiroyoshi Yamaguchi, Yoshio Hiramoto, Michiyo Niigata Univ Grad Sch Sci & Technol Nishi Ku Ikarashi 2-8050 Niigata 9502181 Japan OKI Elect Ind Co Ltd Corp Infrastruct Grp AI Technol R&D Dept Corp Res & Dev Ctr 1-16-8 Chuou Warabi Saitama 3358510 Japan

ISBN: (纸本)9788957083048

Even though Pulse-Doppler radar estimates velocity by measuring phase shift amount between pulses, the visible Doppler range is limited by Pulse-Repetition-Interval (PRI). In radio wave, Doppler frequency occurs from moving target as well as sound wave and the phase shift information should include slightly in samples of individual pulses. In this study, music algorithm is applied to measure these minute shift. We show experimental results on Doppler shift amount estimation by using both fast-time and slow-time and show that the shift amount can be measured without depending on PRI.

关键词： Doppler estimation Millimeter wave FM-CW radar music algorithm

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A Research on 3D Fusion Location algorithm of Spatial-time Domain Based on music algorithm 6

A Research on 3D Fusion Location Algorithm of Spatial-time D...

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IEEE 6th International Conference on Electronics Information and Emergency Communication (ICEIEC)

作者： Zhao, Ping Shi, Wenzhe Northwestern Polytech Univ Sch Elect & Informat Xian 710072 Shaanxi Peoples R China

ISBN: (纸本)9781509019977

In this paper, the new 3D fusion localization algorithm model based on the multiple signal classification (music) algorithm is proposed to integrate space distance positioning with time delay positioning. Space-time cascade approach enhances the receiver to receive signal strength in the range of signal source direction and the multidimensional spectrum peak search only needed in corresponding scope. Space-time fusion approach can match the airspace-domain parameters with time-domain parameters to estimate and handle the estimation problem in which source number is greater than the number of array element. The simulation results show that the accuracy of the signal source is estimated by using the 3D fusion location algorithm model when the pitching angle is less than 70 degrees.

关键词： 3D fusion location spatial-time domain uniform cross array music algorithm

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A method for interharmonic measurement based on DQ Transform and music algorithm

A method for interharmonic measurement based on DQ Transform...

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Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Hua Ou-yang Wu, Zheng-guo Naval Univ Engn Elect & Informat Engn Dept Wuhan 430033 Peoples R China

ISBN: (纸本)9781457705472

Along with the development of electric power system and the wide application of nonlinear equipments or devices, the harmonics in power networks become more complicated, and the interharmonics is more severe gradually. Dq transform and music algorithm is used to detect the frequency of interharmonics in this paper. The high amplitude fundamental waveform can be eliminated by dq transform. music algorithm is kinds of the subspace spectrum estimation methods having no requires for synchronous sampling, which is suitable for short-term stable interharmonic detection. Combination of both can effectively detect low interharmonic beside high amplitude fundamental waveform. The joint algorithm is robust when interharmonic-level noise is present. Finally, the amplitudes and phases of signal are estimated by the least squares method.

关键词： component Power system Interharmonics dq Transform music algorithm Least squares method

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Simulation Research to Finding Direction Precision Based on music algorithm in Non-uniform Circular Array 16

Simulation Research to Finding Direction Precision Based on ...

引用

IEEE 16th International Conference on Communication Technology (ICCT)

作者： Yu, Lianqing Wang, Ning Zhu, Huan Chen, Yi Jiang, Tao Nanjing Res Inst Elect Technol Nanjing 210039 Jiangsu Peoples R China CETC Key Lab IntelliSense Technol Nanjing 210039 Jiangsu Peoples R China

ISBN: (纸本)9781467370059

For the non-uniform circular antenna array, the algorithm based on multiple signal classification (music) is a high-resolution estimation algorithm on direction-of-arrival (DOA). This paper analyzes that the direction finding precision of multiple signal classification (music) algorithm is under the different background signal-to-noise ratio (SNR), multi-path or mirror reflection, and different number of snapshots. At the same time, it simulates that the amplitude and phase inconsistency of super-heterodyne receiver channels effects on the direction finding precision of multiple signal classification (music) algorithm. The simulation results show that the music algorithm has higher direction finding precision, and meet the requirements of a direction finding system under certain snapshots and SNR measurement. This paper affords the effective use for a reference on the direction finding based on spatial spectrum estimation.

关键词： DOA Estimation music algorithm Direction Finding Precision Non-uniform Circular Array Amplitude and Phase Inconsistencies

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Performance Evaluation of 1D DoA Estimation for DECOM and UCLA Using music algorithm 29

Performance Evaluation of 1D DoA Estimation for DECOM and UC...

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29th IEEE Conference on Signal Processing and Communications Applications (SIU)

作者： Obimo, Peter Nyongesah Tamer, Ozgur Dokuz Eylul Univ Dept Elect & Elect Engn Izmir Turkey

ISBN: (纸本)9781665436496

Sparse arrays are gaining a lot of consideration due to their ability to increase degrees of freedom of an array, an aspect that allows for resolving of more sources than the number of sensor elements. In this paper direction of arrival estimation for coprime linear arrays using multiple signal classification algorithm is presented. Two super-resolution methods namely decompose and combine as well as unfolded coprime linear array are considered with an aim of putting forth an in-depth performance comparison of the two. Both methods analyses nonuniform linear array by first, decomposing it according to its coprime integer pair to form two independent sub-arrays 1 and 2, proceeded by application of the estimation algorithm. Although decompose and combine method ensures computational simplicity since it considers either of the decomposed sub-arrays separately, its resolution and performance efficiency is lower compared to unfolded coprime linear array method which uses the two sub-array data simultaneously thereby preserving the intrinsic mutual information of the array, an aspect that is lost in the former method.

关键词： DoA estimation DECOM UCLA music algorithm

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Performance analysis of music algorithm in the presence of local scattering

Performance analysis of MUSIC algorithm in the presence of l...

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IEEE International Conference on Industrial Technology (ICIT)

作者： Jaafar, I Boujemâa, H Siala, M SUPCOM Ariana 2083 Tunisia

ISBN: (纸本)0780386620

In wireless communication scenarios, local scattering in the mobile vicinity causes angular spreading which leads to music performances degradation. In this paper, we study the performance of music algorithm in presence of scattering under the assumption of time-invariant channel during the observation period. To this aim, an approximate distribution of the Direction Of Arrival (DOA) estimates is derived. Additionally a statistical analysis is carried out where a formulas for the bias and Root Mean Square Error (RMSE) of the DOA estimates are given. Simulation results of music algorithm are carried in different scenarios and compared to the theoretical study.

关键词： angular spread DOA music algorithm bias RMSE

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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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A Novel Reactance Domain music algorithm for Direction of Arrival Estimation Using 13-element ESPAR Antennas

A Novel Reactance Domain MUSIC Algorithm for Direction of Ar...

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International Conference on Information Networking (ICOIN)

作者： Wang, Xin Kim, Bong-Jun Ryu, Heung-Gyoon Chungbuk Natl Univ Dept Elect Engn Cheongju 361763 South Korea

ISBN: (纸本)9781479936892

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 antennas for direction of arrival (DOA) 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 DOA estimation, the main motivation of the fourth-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 ESAPR antenna

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Techniques for radar imaging based on music algorithm

Techniques for radar imaging based on MUSIC algorithm

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International Symposium on Multispectral Image Processing and Pattern Recognition

作者： Chen, ZP Guo, B Han, HZ Natl Univ Def Technol Inst Elect Engn Changcha 410073 Hunan Peoples R China

ISBN: (纸本)0819430064

At first, the radar target scattering center model and music algorithm are analyzed. How to efficiently set the parameters of the music algorithm is given through a great deal of simulated radar data in experiment. After that, according to measured data of two kinds of plane target on fully polarized and high range resolution radar system, author mainly investigated particular utilization of music algorithm in radar imaging, two-dimensional radar images are generated for two targets measured in compact range. In the end, we draw a conclusion about the relationship between radar target scattering properties and imaging results.

关键词： music algorithm radar imaging scattering center

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ELoran Receiver Sky-ground Wave Recognition Based on music algorithm 2018

ELoran Receiver Sky-ground Wave Recognition Based on MUSIC A...

引用

2nd International Conference on Telecommunications and Communication Engineering (ICTCE)

作者： Zhao, Yaru Sun, Yanwei Huang, Ping State Key Lab Satellite Nav Syst & Equipment Tech Shijiazhuang Hebei Peoples R China Harbin Engn Univ Dept Automat Harbin Heilongjiang Peoples R China

ISBN: (纸本)9781450365857

In view of the fact that the conventional eLoran receiver sky-ground wave recognition method can not effectively utilize the signal energy, according to the characteristics of the eLoran sky-ground wave frequency domain signal mathematical model, a sky-ground wave recognition method based on multiple signal classification ( music) algorithm is proposed. This method converts the problem of time delay estimation into the problem of spectrum estimation, and then uses the music algorithm with high spectral resolution to realize the super-resolution estimation of eLoran sky-ground wave time delay. The feasibility of time delay estimation based on single measurement data is analyzed. The performance of music algorithm applied to single measurement data is simulated and tested. Simulation results show that the proposed method has super resolution capability for eLoran sky wave time delay estimation.

关键词： eLoran signal sky-ground wave music algorithm wireless channel

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