A survey on the effect of small snapshots number and SNR on the efficiency of the MUSIC algorithm

Ioannopoulos, G. A.; Anagnostou, Dimitris E.; Chryssomallis, M.T.

doi:10.1109/aps.2012.6349109

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…Similarly, the estimation error of the discrete spectrum obtained from MUSIC increases significantly when the SNR decreases. Although increasing the number of snapshots can improve the processing performance of the MUSIC algorithm [31], the calculation time would also increase dramatically at the same time [32]. Compared to CS and MUSIC, more stable spectral estimation results can be provided by CPSCI, CPSII, and CCPSCI, which are based on Fourier theory.…”

Section: Analysis Of Narrowband Discrete Spectral Estimation Results mentioning

confidence: 99%

Passive Detection of Ship-Radiated Acoustic Signal Using Coherent Integration of Cross-Power Spectrum with Doppler and Time Delay Compensations

Guo

Piao

Guo

et al. 2020

Sensors

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Passive sonar is widely used for target detection, identification and classification based on the target radiated acoustic signal. Under the influence of Doppler, generated by relative motion between the moving target and the sonar array, the received ship-radiated acoustic signals are non-stationary and time-varying, which has a negative effect on target detection and other fields. In order to reduce the influence of Doppler and improve the performance of target detection, a coherent integration method based on cross-power spectrum is proposed in this paper. It can be concluded that the frequency shift and phase change in the cross-power spectrum obtained by each pair of data segments can be corrected with the compensations of time scale (Doppler) factor and time delay. Moreover, the time scale factor and time delay can be estimated from the amplitude and phase of the original cross-power spectrum, respectively. Therefore, coherent integration can be implemented with the compensated cross-power spectra. Simulation and experimental data processing results show that the proposed method can provide sufficient processing gains and effectively extract the discrete spectra for the detection of moving targets.

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Section: Analysis Of Narrowband Discrete Spectral Estimation Results mentioning

confidence: 99%

Passive Detection of Ship-Radiated Acoustic Signal Using Coherent Integration of Cross-Power Spectrum with Doppler and Time Delay Compensations

Guo

Piao

Guo

et al. 2020

Sensors

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show abstract

“…We can observe that simulations fail for M = 3. This is justified from the fact that we need M = 2 D sensors in order to detect D sources ( M = 3 D/ 2 stands for improved spatial smoothing methods) [15, 16]. However, all other simulations are successful with a deviation of about 2°.…”

Section: Effect Of K On Ula Resolutionmentioning

confidence: 99%

Evaluating the effect of small number of snapshots and signal‐to‐noise‐ratio on the efficiency of MUSIC estimations

Ioannopoulos

Anagnostou

Chryssomallis

2017

IET Microwaves, Antennas & Propagation

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In this study, the authors aim to discover the relation between the resolution of a uniform linear array (ULA) and the parameters involved in MUltiple SIgnal Classification (MUSIC) calculations, such as the number of antenna elements, the number of snapshots and the signal‐to‐noise‐ratio. In this study, the number of used snapshots is limited to very small values in order to reveal the behaviour of a fast system such as the case of high speed mobile targets. The study is made through numerous simulations of different scenarios that concern cases where a small number of snapshots are assumed, for a variety of noise environments. The results lead to equations that relate the broadside resolution of a ULA with these parameters. Verification of the resulting equations shows that the behaviour of the resolution can be prescribed with sufficient precision; therefore the proposed formulae can be a useful tool for array design.

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Cognitive Resource Allocation with Beamforming

Marabissi

Fantacci

2015

SpringerBriefs in Electrical and Computer Engineering

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A survey on the effect of small snapshots number and SNR on the efficiency of the MUSIC algorithm

Cited by 5 publications

References 2 publications

Passive Detection of Ship-Radiated Acoustic Signal Using Coherent Integration of Cross-Power Spectrum with Doppler and Time Delay Compensations

Passive Detection of Ship-Radiated Acoustic Signal Using Coherent Integration of Cross-Power Spectrum with Doppler and Time Delay Compensations

Evaluating the effect of small number of snapshots and signal‐to‐noise‐ratio on the efficiency of MUSIC estimations

Cognitive Resource Allocation with Beamforming

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