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Готові списки джерел за темами / Aliasing Analysi / Статті в журналах

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Aliasing Analysi.

Статті в журналах з теми "Aliasing Analysi"

Автор: Grafiati

Опубліковано: 11 березня 2023

Оновлено: 31 липня 2025

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1

Catayoc, Rabel. "Comparative Analysis of Table Aliasing in SQL Queries: Functional and Semantic Implications." American Journal of Smart Technology and Solutions 4, no. 1 (2025): 25–29. https://doi.org/10.54536/ajsts.v4i1.4332.

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Table aliasing is a widely used technique in SQL queries that enhances readability, scalability, and maintainability, particularly in complex queries involving multiple tables. This study examines the functional and semantic implications of aliasing, highlighting its role in improving query clarity, reducing redundancy, and facilitating long-term database management. While the benefits of aliasing are evident in large-scale applications, potential limitations exist. In simple queries, aliasing may be unnecessary and could even introduce confusion when non-descriptive or overly abbreviated alia

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2

Smith, C. C., J. F. Dahl, and R. Joe Thornhill. "The Duality of Leakage and Aliasing and Improved Digital Spectral Analysis Techniques." Journal of Dynamic Systems, Measurement, and Control 118, no. 4 (1996): 741–47. http://dx.doi.org/10.1115/1.2802351.

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When processing, recording, and analyzing continuous, analog signals or functions with a digital computer, information is lost when the signals are converted to digital form. When signals are sampled in one domain (time or frequency), the loss of information is characterized as aliasing in the other (frequency or time, respectively) domain. When a signal or function is truncated in one domain, the information loss is characterized as leakage in the other domain. It is shown that because of the dual nature of leakage and aliasing, that leakage in one domain reduces aliasing in the other domain

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3

Narita, Y., and K. H. Glassmeier. "Spatial aliasing and distortion of energy distribution in the wave vector domain under multi-spacecraft measurements." Annales Geophysicae 27, no. 8 (2009): 3031–42. http://dx.doi.org/10.5194/angeo-27-3031-2009.

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Abstract. Aliasing is a general problem in the analysis of any measurements that make sampling at discrete points. Sampling in the spatial domain results in a periodic pattern of spectra in the wave vector domain. This effect is called spatial aliasing, and it is of particular importance for multi-spacecraft measurements in space. We first present the theoretical background of aliasing problems in the frequency domain and generalize it to the wave vector domain, and then present model calculations of spatial aliasing. The model calculations are performed for various configurations of the recip

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4

Shabrina, Hasyyati, Endah Setyowati, Inda Ahmayani, and Khalifah Audya Eka Putri. "Analisis Efek Aliasing Pada Sinyal Audio Dengan Variasi Frekuensi Sampling Pada Lagu ‘Terhebat’." ELECTRA : Electrical Engineering Articles 5, no. 1 (2024): 1–11. https://doi.org/10.25273/electra.v5i1.21265.

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Анотація:

Aliasing merupakan fenomena yang terjadi dalam pengolahan sinyal digital, termasuk sinyal audio, ketika frekuensi sampling yang digunakan tidak mencukupi untuk merepresentasikan frekuensi tertinggi dalam sinyal tersebut. Penelitian ini bertujuan untuk menganalisis efek aliasing pada sinyal audio dengan melakukan variasi frekuensi sampling pada lagu "Terhebat". Eksperimen dilakukan dengan menggunakan software MATLAB untuk memvisualisasikan dan menganalisis sinyal audio pada frekuensi sampling 11025 Hz, 22050 Hz, 44100 Hz, 88200 Hz, dan 32000 Hz. Hasil penelitian menunjukkan bahwa frekuensi samp

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5

Fahmy, Mahmoud N. "Measurement of aliasing in cepstrum analysis." Journal of the Acoustical Society of America 78, S1 (1985): S80. http://dx.doi.org/10.1121/1.2023011.

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6

Jekeli, Christopher. "Spherical harmonic analysis, aliasing, and filtering." Journal of Geodesy 70, no. 4 (1996): 214–23. http://dx.doi.org/10.1007/bf00873702.

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7

Heintze, Nevin, and Olivier Tardieu. "Ultra-fast aliasing analysis using CLA." ACM SIGPLAN Notices 36, no. 5 (2001): 254–63. http://dx.doi.org/10.1145/381694.378855.

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8

Jekeli, C. "Spherical harmonic analysis, aliasing, and filtering." Journal of Geodesy 70, no. 4 (1996): 214–23. http://dx.doi.org/10.1007/s001900050010.

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9

Lal, Akash, and G. Ramalingam. "Reference count analysis with shallow aliasing." Information Processing Letters 111, no. 2 (2010): 57–63. http://dx.doi.org/10.1016/j.ipl.2010.08.003.

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10

Gensun, Fang. "Whittaker–Kotelnikov–Shannon Sampling Theorem and Aliasing Error." Journal of Approximation Theory 85, no. 2 (1996): 115–31. http://dx.doi.org/10.1006/jath.1996.0033.

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11

Shabrina, Hasyyati, Endah Setyowati, Inda Ahmayani, and Khalifah Audya Eka Putri. "Analisis Efek Aliasing Pada Sinyal Audio Dengan Variasi Frekuensi Sampling Pada Lagu ‘Terhebat’." ELECTRA : Electrical Engineering Articles 5, no. 1 (2024): 1. http://dx.doi.org/10.25273/electra.v5i1.20114.

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Анотація:

<p><em>Aliasing merupakan fenomena yang terjadi dalam pengolahan sinyal digital, termasuk sinyal audio, ketika frekuensi sampling yang digunakan tidak mencukupi untuk merepresentasikan frekuensi tertinggi dalam sinyal tersebut. Penelitian ini bertujuan untuk menganalisis efek aliasing pada sinyal audio dengan melakukan variasi frekuensi sampling pada lagu "Terhebat". Eksperimen dilakukan dengan menggunakan software MATLAB untuk memvisualisasikan dan menganalisis sinyal audio pada frekuensi sampling 11025 Hz, 22050 Hz, 44100 Hz, 88200 Hz, dan 32000 Hz. Hasil penelitian menunjukkan b

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12

Kim, Wook-Joong, Nam-Ho Hur, and Jin-Woong Kim. "Geometric analysis and anti-aliasing filter for stereoscopic 3D image scaling." Journal of Broadcast Engineering 14, no. 5 (2009): 638–49. http://dx.doi.org/10.5909/jbe.2009.14.5.638.

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13

Ryglicki, David R., and Daniel Hodyss. "A Deeper Analysis of Center-Finding Techniques for Tropical Cyclones in Mesoscale Models. Part I: Low-Wavenumber Analysis." Journal of Applied Meteorology and Climatology 55, no. 3 (2016): 531–59. http://dx.doi.org/10.1175/jamc-d-15-0125.1.

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AbstractA deeper analysis of possible errors and inconsistencies in the analysis of vortex asymmetries owing to the placement of centers of tropical cyclones (TCs) in mesoscale models is presented. Previous works have established that components of the 2D and 3D structure of these TCs—primarily radial wind and vertical tilt—can vary greatly depending on how the center of a model TC is defined. This work will seek to expand the previous research on this topic, but only for the 2D structure. To be specific, this work will present how low-wavenumber azimuthal Fourier analyses can vary with center

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14

Williams, T. W., W. Daehn, M. Gruetzner, and C. W. Starke. "Aliasing Errors in Signature in Analysis Registers." IEEE Design & Test of Computers 4, no. 2 (1987): 39–45. http://dx.doi.org/10.1109/mdt.1987.295105.

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15

Hinich, Melvin J., and Murray A. Wolinsky. "A Test for Aliasing Using Bispectral Analysis." Journal of the American Statistical Association 83, no. 402 (1988): 499–502. http://dx.doi.org/10.1080/01621459.1988.10478623.

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16

Zhang, Sean, Barbara G. Ryder, and William A. Landi. "Experiments with combined analysis for pointer aliasing." ACM SIGPLAN Notices 33, no. 7 (1998): 11–18. http://dx.doi.org/10.1145/277633.277635.

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17

Hamada, M., and C. F. J. Wu. "Analysis of Designed Experiments with Complex Aliasing." Journal of Quality Technology 24, no. 3 (1992): 130–37. http://dx.doi.org/10.1080/00224065.1992.11979383.

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18

Biondi, Biondo. "Kirchhoff imaging beyond aliasing." GEOPHYSICS 66, no. 2 (2001): 654–66. http://dx.doi.org/10.1190/1.1444956.

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Анотація:

Crucial image resolution may be lost when spatially aliased data are imaged with Kirchhoff algorithms that employ standard antialiasing methods. To maximize resolution, I introduce a method that enables the proper imaging of some aliased components in the data, while avoiding aliasing artifacts. The proposed method is based on a detailed analysis of the different types of aliasing that affect Kirchhoff imaging. In particular, it is based on the observation that operator aliasing depends on the dip spectrum of the data. A priori knowledge on the characteristics of the dip spectrum of the data,

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19

Wang, Chengpeng, Jipeng Zhang, Rongxin Wu, and Charles Zhang. "DAInfer: Inferring API Aliasing Specifications from Library Documentation via Neurosymbolic Optimization." Proceedings of the ACM on Software Engineering 1, FSE (2024): 2469–92. http://dx.doi.org/10.1145/3660816.

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Modern software systems heavily rely on various libraries, necessitating understanding API semantics in static analysis. However, summarizing API semantics remains challenging due to complex implementations or the unavailability of library code. This paper presents DAInfer, a novel approach for inferring API aliasing specifications from library documentation. Specifically, we employ Natural Language Processing (NLP) models to interpret informal semantic information provided by the documentation, which enables us to reduce the specification inference to an optimization problem. Furthermore, we

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20

Huang, Mei, Gang Li, Rui Sun, et al. "Sparse-View Artifact Correction of High-Pixel-Number Synchrotron Radiation CT." Applied Sciences 14, no. 8 (2024): 3397. http://dx.doi.org/10.3390/app14083397.

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High-pixel-number synchrotron radiation computed tomography (CT) has the advantages of high sensitivity, high resolution, and a large field of view. It has been widely used in biomedicine, cultural heritage research, non-destructive testing, and other fields. The Nyquist sampling theorem states that when the detector’s pixels per row are increased, it requires more CT projections, resulting in a lengthened CT scan time and increased radiation damage. Sparse-view CT can significantly reduce radiation damage and improve the projection data acquisition speed. However, there is insufficient sparse

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21

Zhao, Chengwu, Junqiang Song, Hongze Leng, and Juan Zhao. "Potential Uncertainties in the Analysis of Low-Wavenumber Asymmetries Caused by Aliasing Center in Tropical Cyclones." Atmosphere 10, no. 6 (2019): 300. http://dx.doi.org/10.3390/atmos10060300.

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Variations in both symmetric wind components and asymmetric wave amplitudes of a tropical cyclone depend on the location of its center. Because the radial structure of asymmetries is critical to the wave–mean interaction, this study, under idealized conditions, examines the influences of a center location on the radial structure of the diagnosed asymmetries. It has been found that the amplitudes of aliasing asymmetries are mainly affected by the initial symmetric fields. Meanwhile, the radial structure of asymmetry is controlled by the aliasing direction. Sensitivity tests on the location of t

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22

Mirzaei, Ahmad, Saeed Chehrazi, Rahim Bagheri, and Asad A. Abidi. "Analysis of first-order anti-aliasing integration sampler." IEEE Transactions on Circuits and Systems I: Regular Papers 55, no. 10 (2008): 2994–3005. http://dx.doi.org/10.1109/tcsi.2008.924127.

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23

Landi, William, Barbara G. Ryder, and Sean Zhang. "Interprocedural modification side effect analysis with pointer aliasing." ACM SIGPLAN Notices 28, no. 6 (1993): 56–67. http://dx.doi.org/10.1145/173262.155096.

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24

Venet, A. "Automatic analysis of pointer aliasing for untyped programs." Science of Computer Programming 35, no. 2-3 (1999): 223–48. http://dx.doi.org/10.1016/s0167-6423(99)00012-x.

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25

Saxena, N. R., and E. J. McCluskey. "Parallel signature analysis design with bounds on aliasing." IEEE Transactions on Computers 46, no. 4 (1997): 425–38. http://dx.doi.org/10.1109/12.588057.

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26

Chia, Chen Ciang, and Jung Ryul Lee. "Anti-Aliasing for the Visualization of Wavefield Propagation." Applied Mechanics and Materials 629 (October 2014): 493–97. http://dx.doi.org/10.4028/www.scientific.net/amm.629.493.

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Visualization of wavefield propagation has been evolving as one of the most significant nondestructive imaging methods for structural damage evaluation and shock analysis. Corresponding visualization systems that are commonly used are potentially affected by aliasing due to the nature of discrete sampling in spatial and temporal domains. This study was conducted to define the problem and produce a spatial sampling guideline for aliasing-free visualization. Experimental demonstration was given at various spatial sampling rates for comparison. The results verified that the guideline is valid and

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27

Ekreem, Nasser B., Samieh A. Abu Saad, Samaher A. Elnajar, and Mostafa B. Abuitbel. "Effects of Sampling on Controlled Signals Using Matlab." International Science and Technology Journal 36, no. 2 (2025): 1–19. https://doi.org/10.62341/nass2016.

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Sampling is the process of converting continuous time signals into discrete numerical values, is fundamental in digital control systems. Accurate sampling is critical to ensure that the discrete signals used in digital controllers strictly represent the original continuous signals without distortion. This paper presents a comparative analysis of analog signals sampled at rates above and below the Nyquist rate, emphasizing the impact on signal integrity in both time and frequency domains. Using MATLAB simulations, the spectrum of sampled signals is examined to demonstrate how undersampling lead

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28

Olenko, Andrew Ya, and Tibor K. Pogány. "Time shifted aliasing error upper bounds for truncated sampling cardinal series." Journal of Mathematical Analysis and Applications 324, no. 1 (2006): 262–80. http://dx.doi.org/10.1016/j.jmaa.2005.12.008.

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29

Toloza, Julio H., and Alfredo Uribe. "Oversampling and aliasing in de Branges spaces arising from Bessel operators." Journal of Mathematical Analysis and Applications 492, no. 1 (2020): 124428. http://dx.doi.org/10.1016/j.jmaa.2020.124428.

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30

Zhang, Hui, Feng Han, Xiao Yan Bao, and Hua Yao Mao. "Investigation on Spectral Aliasing Error Resulted from Truncating Signals Incoherently." Applied Mechanics and Materials 568-570 (June 2014): 208–11. http://dx.doi.org/10.4028/www.scientific.net/amm.568-570.208.

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The aliasing error resulted from truncating signals incoherently is one of main spectrum errors. The investigation on the error remains quite limited. This restricted the development of high accuracy spectrum analysis. This work discussed the truncation effect and the corresponding aliasing error in quantity, and revealed its dependence upon the truncation conditions. Then a concise technique was proposed to suppress the truncation aliasing error of DFT spectrum by modifying the first datum of the digital signal in time domain. Under general truncation conditions, the simulations show that the

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31

Hu, Denghui, and Yongsheng Xu. "A New Method of De-Aliasing Large-Scale High-Frequency Barotropic Signals in the Mediterranean Sea." Remote Sensing 12, no. 13 (2020): 2157. http://dx.doi.org/10.3390/rs12132157.

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With the development of satellite observation technology, higher resolution and shorter return cycle have also placed higher demands on satellite data processing. The non-tide high-frequency barotropic oscillation in the marginal sea produces large aliasing errors in satellite altimeter observations. In previous studies, the satellite altimeter aliasing correction generally relied on a few bottom pressure data or the model data. Here, we employed the high-frequency tide gauge data to extract the altimeter non-tide aliasing correction in the west Mediterranean Sea. The spatial average method an

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32

Choi, Y. H., J. S. Kim, and Gihoon Byun. "High-frequency source localization based on steered frequency-wavenumber analysis using sparse array." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A305. http://dx.doi.org/10.1121/10.0023612.

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In this study, we address the problem of estimating the position of a nearby target emitting a high-frequency signal using sparse array. One of the representative localization techniques, Matched Field Processing (MFP), is known to demonstrate reliable performance below 1 kHz. However, at frequencies higher than the design frequency of the array sensor, the localization becomes challenging due to spatial aliasing. Nevertheless, Frequency-Difference Matched Field Processing (FDMFP) is a technique that successfully estimates the position of the target even in the presence of spatial aliasing. It

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33

BERGER, MARTIN, KOHEI HONDA, and NOBUKO YOSHIDA. "A logical analysis of aliasing in imperative higher-order functions." Journal of Functional Programming 17, no. 4-5 (2007): 473–546. http://dx.doi.org/10.1017/s0956796807006417.

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AbstractWe present a compositional programme logic for call-by-value imperative higher-order functions with general forms of aliasing, which can arise from the use of reference names as function parameters, return values, content of references and parts of data structures. The programme logic extends our earlier logic for alias-free imperative higher-order functions with new operators which serve as building blocks for clean structural reasoning about programms and data structures in the presence of aliasing. This has been an open issue since the pioneering work by Cartwright–Oppen and Morris

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34

ZHANG, FAN, HANQIU SUN, LEILEI XU, and KITLUN LEE. "HARDWARE-ACCELERATED PARALLEL-SPLIT SHADOW MAPS." International Journal of Image and Graphics 08, no. 02 (2008): 223–41. http://dx.doi.org/10.1142/s0219467808003064.

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Shadow mapping is well known for its generality and efficiency, thus it has been extensively employed for real-time shadow rendering in diverse applications. However, it suffers from inherent aliasing problem due to its image-based nature. In this paper, we present the parallel-split shadow maps scheme which produces high-quality shadows especially in large-scale and complex scenes. Our scheme splits the view frustum into parts using planes parallel to the view plane, and then generates a shadow map for each part. A fast and robust splitting strategy based on the analysis of shadow-map aliasin

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35

Adelson, Ronald M., and Adrian C. Turner. "Spectrum Analysis, Aliasing, and the Perception of Musical Tones." Perception 25, no. 5 (1996): 609–17. http://dx.doi.org/10.1068/p250609.

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A signal-processing model is proposed in which the phenomenon of ‘aliasing’ is invoked to explain certain phenomena in the perception of musical tones, for which a really satisfactory explanation has not hitherto been available. It is shown that this model offers a reason why the harmonic series appears to play such a central role in tone and pitch perception, and can throw light on ‘virtual pitch’, ‘harmonic beats’, etc. Some preliminary results from a computer simulation of the model are described which are consistent with empirical data on tone perception.

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36

Kane, Andrew, and Abhyuday Mandal. "A New Analysis Strategy for Designs With Complex Aliasing." American Statistician 74, no. 3 (2019): 274–81. http://dx.doi.org/10.1080/00031305.2019.1585287.

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37

Lévesque, L. "Revisiting the Nyquist criterion and aliasing in data analysis." European Journal of Physics 22, no. 2 (2001): 127–32. http://dx.doi.org/10.1088/0143-0807/22/2/304.

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38

Sansò, F. "On the aliasing problem in the spherical harmonic analysis." Journal of Geodesy 64, no. 4 (1990): 313–30. http://dx.doi.org/10.1007/bf02538406.

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39

Stroele, Albrecht P. "Signature Analysis for Test Responses of Sequential Circuits." VLSI Design 10, no. 2 (1999): 127–41. http://dx.doi.org/10.1155/1999/97179.

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Many test schemes use signature analyzers to compact the responses of a circuit under test. Unfortunately, there can be some faulty circuits with erroneous test responses but exactly the same signature as in the fault-free case. Hence, methods are required to determine how many faults become undetectable due to aliasing. Whereas previous work concentrated on combinational circuits, this paper investigates signature analysis for a wide range of sequential circuits, where the errors in successive responses are correlated. It is shown that for almost all faults of these circuits the probability o

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40

Li, Chuan, Yawei Wang, Qibing Ma, and Xiaorong Wan. "Multi-Domain Feature Analysis and Application Research of GPR Aliased Signals." Sensors 25, no. 9 (2025): 2741. https://doi.org/10.3390/s25092741.

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In radar detection of concrete structures, the significant differences in electromagnetic properties between rebar and concrete result in strong reflections at rebar interfaces. The electromagnetic waves reflected by the dual-layer rebar interfere with and superimpose, severely obscuring their characteristic signals, making accurate identification challenging. This study investigates the aliasing effect in ground-penetrating radar (GPR) signals through simulation analysis of aliased signals at different rebar spacings and examines their characteristics across the time, frequency, and time–freq

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41

Oktamuliani, Sri, Takuro Ishii, and Yoshifumi Saijo. "Optimizing Doppler Ultrasound Parameters: The Study of Insonation Angle, PRF, and Dynamic Range in Blood Flow Assessment." JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS 17, no. 1 (2025): 53–62. https://doi.org/10.25077/jif.17.1.53-62.2025.

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Doppler ultrasound is critical in medical diagnostics for evaluating blood flow and detecting vascular conditions. Accurate blood flow velocity measurements depend on insonation angle, Pulse Repetition Frequency (PRF), and dynamic range. This study optimizes these parameters to enhance Doppler ultrasound performance and diagnostic accuracy. A Xario-100 ultrasound machine and the Doppler 403TM flow phantom were used to evaluate the effects of insonation angle, PRF, and dynamic range on measurement accuracy. Insonation angles of 0o and 60o were tested to assess their impact on aliasing and preci

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42

Nautiyal, Atul. "Antialiasing methods for two‐dimensional spatial wavelets in seismic modeling." GEOPHYSICS 53, no. 9 (1988): 1202–6. http://dx.doi.org/10.1190/1.1442560.

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Two methods of circumventing spatial aliasing in seismic reflection modeling of zero‐offset data were examined. The first approach used asymptotic approximations of the near‐ and far‐field variants of the space‐frequency domain wave‐field continuation operator. This technique controls spatial aliasing but puts a lower limit on the extrapolation step size and an upper limit on frequencies that can be used in the modeling. The second method used Fourier (wavenumber) analysis of the same operator to identify the aliased components and wavenumber windowing to remove the unwanted portions of the wa

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43

Terentjev, A. B., and I. V. Shturts. "Two Dimensional Color Doppler Dealiasing Using Submaximal Velocity Components Filtering." INFORMACIONNYE TEHNOLOGII 27, no. 2 (2021): 97–101. http://dx.doi.org/10.17587/it.27.97-101.

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Aliasing is one of the most common artifacts in 2D color Doppler echocardiography. Existing methods are approximate and the most precise of them require considerable amount of computations. In the proposed paper, we describe an algorithm that modifies only areas with submaximal velocities — areas most prone to aliasing, leaving other untouched in order to facilitate the process of analysis for the radiologist. Algorithm was tested on 10 in-vivo datasets of large animals and have shown the considerable precision and computation efficiency, which made it real-time compatible.

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Zhai, Yihang, Bin Wang, Xiaofei Wang, and Qiliang Ni. "Modeling and Analysis of a Long-Range Target Localization Problem Based on an XS Anode Single-Photon Detector." Applied Sciences 14, no. 6 (2024): 2400. http://dx.doi.org/10.3390/app14062400.

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With the development of space detection technology, the detection of long-range dark and weak space targets has become an important issue in space detection. Cross-strip anode photon imaging detectors can detect weak light signals with extremely low dark count rates and are well suited to applications in long-range target detection systems. Since cross-strip anode detectors are expensive to develop and fabricate, a theoretical analysis of the detection process is necessary before fabrication. During the detection process, due to the dead time of the detector, some photon-generated signals are

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45

Ronen, Joshua. "Wave‐equation trace interpolation." GEOPHYSICS 52, no. 7 (1987): 973–84. http://dx.doi.org/10.1190/1.1442366.

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Spatial aliasing in multichannel seismic data can be overcome by solving an inversion in which the model is the section that would be recorded in a well sampled zero‐offset experiment, and the data are seismic data after normal moveout (NMO). The formulation of the (linear) relation between the data and the model is based on the wave equation and on Fourier analysis of aliasing. A processing sequence in which one treats missing data as zero data and performs partial migration before stacking is equivalent to application of the transpose of the operator that actually needs to be inverted. The i

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46

Kim, Donghyeon, Gihoon Byun, and Jeasoo Kim. "Direction-of-Arrival Estimation Based on Frequency Difference–Wavenumber Analysis for Sparse Vertical Array Configuration." Sensors 23, no. 1 (2022): 337. http://dx.doi.org/10.3390/s23010337.

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Frequency–wavenumber (f–k) analysis can estimate the direction of arrival (DOA) of broadband signals received on a vertical array. When the vertical array configuration is sparse, it results in an aliasing error due to spatial sampling; thus, several striation patterns can emerge in the f–k domain. This paper extends the f–k analysis to a sparse receiver-array, wherein a multitude of sidelobes prevent resolving the DOA estimates due to spatial aliasing. The frequency difference-wavenumber (Δf–k) analysis is developed by adopting the concept of frequency difference, and demonstrated its perform

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47

Sanko, N. S., and M. I. Vashkevich. "Research of application of DFT-modulated filter bank in systems with significant spectral component amplification." Doklady BGUIR 19, no. 6 (2021): 14–22. http://dx.doi.org/10.35596/1729-7648-2021-19-6-14-22.

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The purpose of this article is to investigate the application of DFT-modulated filter bank in systems with significant spectral component amplification like hearing aid. There is a description of analysis / synthesis method based on short-time Fourier transform (STFT), which is used in most systems of speech information processing. It is shown that DFT-modulated filter bank is a generalization of STFT-method. In analysis / synthesis system based on DFT-modulated filter bank, the input signal is divided into subbands, passing through the analysis filter bank then each subband is amplified and t

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48

Zhan, Xin Wu, and Wu Jiao Dai. "Dam Deformation Analysis Based on Independent Component Analysis." Applied Mechanics and Materials 212-213 (October 2012): 859–62. http://dx.doi.org/10.4028/www.scientific.net/amm.212-213.859.

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Independent component analysis (ICA) is a recent and well-known technique used to separate mixtures of signals. It can separate independent components from mixed signals and has many advantages in blind signal separation, redundancy removal and processing of frequency aliasing problems. Deformation monitoring data can be regarded as the digital signals series which is composed of different frequency. After making test on ICA in processing dam observation data we can draw a conclusion that it is practical and applicative for ICA to evaluate the stability of the dam and reflect the working condi

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49

Su, Dongchu, Jian Yang, Chunxing Yuan, Bowei Chang, Siwei Luo, and Chenyong Li. "Simulation Analysis of RBW Parameters of Spectrum Analyzer Based on Convolution Approach." Journal of Physics: Conference Series 2196, no. 1 (2022): 012032. http://dx.doi.org/10.1088/1742-6596/2196/1/012032.

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Abstract Resolution Band Width (RBW) represents the 3 dB bandwidth of the internal IF filter of the spectrum analyzer, the setting of which greatly affects the clarity of the output spectrum line of the spectrum analyzer. Its reasonable value is essential to correctly distinguish the signals of different frequencies, especially in the case of aliasing of the output spectrum. Thus, it is of great significance to study the relationship between the setting of RBW and the output spectrum. Due to the expensive spectrum analyzer, the RBW adjustment range, frequency range and output accuracy are limi

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50

Kazemi, Mahmoud, Zahra Kavehvash, and Mahdi Shabany. "K-Space Analysis of Aliasing in Millimeter-Wave Imaging Systems." IEEE Transactions on Microwave Theory and Techniques 69, no. 3 (2021): 1965–73. http://dx.doi.org/10.1109/tmtt.2021.3053238.

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