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Thematische Bibliographien / Cross Correlation Peak / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Cross Correlation Peak“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 2. Februar 2022

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1

Chen, Chulung, and Jian-Shuen Fang. "Cross-correlation peak optimization on joint transform correlators." Optics Communications 178, no. 4-6 (2000): 315–22. http://dx.doi.org/10.1016/s0030-4018(00)00683-0.

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2

Mueller, Leonard J., Douglas W. Elliott, Garett M. Leskowitz, et al. "Uniform-sign cross-peak double-quantum-filtered correlation spectroscopy." Journal of Magnetic Resonance 168, no. 2 (2004): 327–35. http://dx.doi.org/10.1016/j.jmr.2004.03.017.

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3

Jiang, Nan, and Jian Wang. "The Theoretical Limits of Watermark Spread Spectrum Sequence." Scientific World Journal 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/432740.

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At present, the spread spectrum (SS) sequences used in watermark include i.i.d. random sequences and the sequences used in SS communications. They appear earlier than digital watermark. Almost no researchers pay attention to whether they are really fit for watermark. In this paper, we compare the SS watermark channel and the traditional SS communication channel. We find out that their correlation property is different. Considering cropping and translation attacks, we define watermark auto- and cross-correlation and propose Loose Autocorrelation and Tight Cross-Correlation (LAC&TCC) propert

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Shim, J., S. Codis, C. Pichon, D. Pogosyan, and C. Cadiou. "The clustering of critical points in the evolving cosmic web." Monthly Notices of the Royal Astronomical Society 502, no. 3 (2021): 3885–910. http://dx.doi.org/10.1093/mnras/stab263.

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ABSTRACT Focusing on both small separations and baryonic acoustic oscillation scales, the cosmic evolution of the clustering properties of peak, void, wall, and filament-type critical points is measured using two-point correlation functions in ΛCDM dark matter simulations as a function of their relative rarity. A qualitative comparison to the corresponding theory for Gaussian random fields allows us to understand the following observed features: (i) the appearance of an exclusion zone at small separation, whose size depends both on rarity and signature (i.e. the number of negative eigenvalues)

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Buckett, M. I., L. D. Marks, and D. E. Luzzi. "Correlation analysis of structure images." Proceedings, annual meeting, Electron Microscopy Society of America 45 (August 1987): 752–53. http://dx.doi.org/10.1017/s0424820100128079.

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A typical high resolution structure image contains a large amount of intensity information which is masked by both statistical and amorphous noise. One useful method of quantifying such images is to employ correlation techniques. When one seeks to quantify the atom column positions, correlation techniques can be used to decompose the image into separate motifs (of specific peak amplitudes and positions - each motif corresponding to a single column of atoms), thereby reducing the data to a more manageable form.This problem can be considered as the least squares minimization of the function: whe

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Adachi, M., T. Ohshima, S. Yamada, and T. Satoh. "Cross-correlation analysis of taste neuron pairs in rat solitary tract nucleus." Journal of Neurophysiology 62, no. 2 (1989): 501–9. http://dx.doi.org/10.1152/jn.1989.62.2.501.

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1. Experiments were conducted to examine the possibility that the taste-sensitive neurons with similar taste-selectivity are preferentially innervated by common driving neurons whose taste-selectivity is also similar. 2. Multiple microelectrodes, in most cases a pair of glued electrodes, were inserted into the unilateral solitary tract nucleus (NTS) of the rat, and simultaneous recordings were made in neuron pairs responding to the four basic taste stimuli. The spike response density (RD) of each neuron during tastant stimulation was determined. Correlation coefficients of spike occurrence wer

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Marigheto, N., L. Venturi, D. Hibberd, K. M. Wright, G. Ferrante, and B. P. Hills. "Methods for peak assignment in low-resolution multidimensional NMR cross-correlation relaxometry." Journal of Magnetic Resonance 187, no. 2 (2007): 327–42. http://dx.doi.org/10.1016/j.jmr.2007.04.016.

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8

Tomás, María-Baralida, Belén Ferrer, and David Mas. "Influence of Neighborhood Size and Cross-Correlation Peak-Fitting Method on Location Accuracy." Sensors 20, no. 22 (2020): 6596. http://dx.doi.org/10.3390/s20226596.

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A known technique to obtain subpixel resolution by using object tracking through cross-correlation consists of interpolating the obtained correlation function and then refining peak location. Although the technique provides accurate results, peak location is usually biased toward the closest integer coordinate. This effect is known as the peak-locking error and it strongly limits this calculation technique’s experimental accuracy. This error may differ depending on the scene and algorithm used to fit and interpolate the correlation peak, but in general, it may be attributed to a sampling probl

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MA, CHUN-WANG, HUI-LING WEI, and YU-QI LI. "THE SYSTEMATIC BEHAVIOR IN THE FRAGMENTS OF THE CALCIUM ISOTOPES PROJECTILE FRAGMENTATION." International Journal of Modern Physics E 19, no. 08n09 (2010): 1545–52. http://dx.doi.org/10.1142/s0218301310015941.

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We have calculated the cross sections of the fragments produced in the projectile fragmentation of the even 36–52 Ca isotopes using the statistical abrasion-ablation model. The isospin effect in the projectile fragmentation are studied by investigating the peak positions and the widths of the fragment isotopic cross section distributions. The peak positions of the fragments isotopic cross section distributions have good linear correlation to the Z of the fragments and the correlations are fitted using the linear function. The correlations between slopes b and the binding energies of the neutro

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Chaves, C., C. Ibiapina, C. R. Andrade, R. Godinho, C. G. Alvim, and A. A. Cruz. "Correlation between peak nasal inspiratory flow and peak expiratory flow in children and adolescents." Rhinology journal 50, no. 4 (2012): 381–85. http://dx.doi.org/10.4193/rhino12.073.

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Background: PEAK nasal inspiratory flow (PNIF) has been proposed as a simple method to evaluate nasal patency. Asthma and allergic rhinitis are commonly associated, and lower airway assessment can provide information concerning an objective interpretation of nasal function. Aims: TO determine whether the PNIF is correlated with peak expiratory flow (PEF) in children and adolescents. Methods and results: Cross-sectional study carried out in healthy students randomly chosen in 14 public schools of the city of Belo Horizonte. PNIF and PEF were assessed for each subject as the following characteri

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McKiernan, Brian J., Joanne K. Marcario, Jennifer Hill Karrer, and Paul D. Cheney. "Correlations Between Corticomotoneuronal (CM) Cell Postspike Effects and Cell-Target Muscle Covariation." Journal of Neurophysiology 83, no. 1 (2000): 99–115. http://dx.doi.org/10.1152/jn.2000.83.1.99.

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The presence of postspike facilitation (PSpF) in spike-triggered averages of electromyographic (EMG) activity provides a useful means of identifying cortical neurons with excitatory synaptic linkages to motoneurons. Similarly the presence of postspike suppression (PSpS) suggests the presence of underlying inhibitory synaptic linkages. The question we have addressed in this study concerns the extent to which the presence and strength of PSpF and PSpS from corticomotoneuronal (CM) cells correlates with the magnitude of covariation in activity of the CM cell and its target muscles. For this purpo

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Yongqiang Yang, 杨永强, 杨玲珍 lingzhen Yang, 吕艺辉 Yihui Lü, 王娟芬 Juanfen Wang, and 张朝霞 Zhaoxia Zhang. "Foreign Object Detection in Intralipid Solution Using Cross-Correlation Peak of Chaotic Laser." Acta Optica Sinica 39, no. 6 (2019): 0614001. http://dx.doi.org/10.3788/aos201939.0614001.

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13

Li, Mi, Wenli Shen, Wenchen Li, et al. "Cross correlation peak-seeking technique of BOTDR based on the incomplete Brillouin spectrum." Optics Communications 438 (May 2019): 1–5. http://dx.doi.org/10.1016/j.optcom.2018.12.066.

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Olsen, Michael G., and Ronald J. Adrian. "Measurement volume defined by peak-finding algorithms in cross-correlation particle image velocimetry." Measurement Science and Technology 12, no. 2 (2001): N14—N16. http://dx.doi.org/10.1088/0957-0233/12/2/402.

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15

Vosberg, V. R., W. Fischer, and W. Joe Quadakkers. "The Cross Correlation Method: A Useful Tool for Peak Shift Determination in XSE." Materials Science Forum 228-231 (July 1996): 73–76. http://dx.doi.org/10.4028/www.scientific.net/msf.228-231.73.

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Liu, Fang, and Yongxin Feng. "A Main Peak Extraction Method for High-Order BOC Signals." Journal of Navigation 70, no. 5 (2017): 1153–69. http://dx.doi.org/10.1017/s0373463317000261.

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Binary Offset Carrier (BOC) modulation signals have been applied in Global Navigation Satellite Systems (GNSS) because they offer a higher positioning accuracy and higher multipath rejection. However, there is a drawback in that the autocorrelation functions have multiple side peaks, meaning that this technique also leads to the large main peak estimation error problem and a low correlation decision efficiency problem. In this paper, we propose a new Main Peak Extraction (MPE) method for high-order BOC signals to solve these problems. In the new method, the synthesis cross-correlation function

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Subramanian, Visalakshi H., Aruna Chennakeshawaran, and Vijay Krishna Kumar. "Correlation between peak expiratory flow rate and pectoralis muscle length." International Journal of Research in Medical Sciences 8, no. 10 (2020): 3643. http://dx.doi.org/10.18203/2320-6012.ijrms20204244.

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Background: Peak expiratory flow rate (PEFR) is a measure of the maximum speed of exhalation after a deep inspiration. The peak expiratory flow is measured by a device named peak flow meter. This study concentrates on the correlation of the PEFR with the pectoral muscle length.Methods: It is a cross sectional study of 30 convenient samples based on gender distribution where the PEFR and pectoralis muscle length were measured in the subjects.Results: Statistical analysis shows that there is a significant correlation between right pectoralis major general muscle length and PEFR (p=0.030), left p

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Ariningsih, Desak Made Wahyu, I. Made Niko Winaya, and I. Wayan Gede Sutadarma. "THE CORRELATION BETWEEN OBESITY AND PEAK EXPIRATORY FLOW RATE CHILDREN AGE 8-12 YEARS OLD IN SARASWATI TABANAN PRIMARY SCHOOL." Majalah Ilmiah Fisioterapi Indonesia 6, no. 3 (2018): 5. http://dx.doi.org/10.24843/mifi.2018.v06.i03.p02.

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ABSTRACT   The purpose of this study was to know correlation between obesity and peak expiratory flow rate in children. This study was done in April 2017. The design of the study was correlational with the cross-sectional method. The samples in this study were obesity children in Saraswati Tabanan primary school of 8-12 years old as many as 55 samples based on consecutive sampling technique. Based on Pearson Correlation test to determine the relationship between obesity with peak expiratory flow rates the results showed a moderate negative association between obesity with peak expi

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Devine, T. J., and J. B. Cohen. "Profile Fitting in Residual Stress Determination." Advances in X-ray Analysis 29 (1985): 89–101. http://dx.doi.org/10.1154/s0376030800010168.

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Of major importance in the determination of residual stress via diffraction is the accuracy of the measurement of the scattering angle (2 θp) of a Bragg peak. This determines the accuracy of the interplanar (d) spacing and hence the strain and stress. In the U.S., the most commonly accepted method of determining peak position is a parabolic fit near the top of a peak. (While a diffraction peak is not parabolic, this is a satisfactory function near the maximum.) The error in this procedure has been derived and tested, and it has been shown that a multipoint fit with a least 7 points is rapid an

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Zhang, Yong Hong, Ming J. Zuo, and Xiao Dong Wang. "Crack Size Estimation Using a Combination of Cross Correlation and Phase Shift Correction in Ultrasonic Time-of-Flight Diffraction Method." Key Engineering Materials 413-414 (June 2009): 305–12. http://dx.doi.org/10.4028/www.scientific.net/kem.413-414.305.

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The ultrasonic time-of-flight-diffraction (TOFD) detection method has been widely used in crack size assessment. The key issue in TOFD is to determine the arrival time of crack tip diffracted signal. In the traditional cross correlation method, the resulting maximum peak of cross correlation function between two signals indicates the time of flight between them. In practical ultrasonic measurement, the transmission wave may be distorted and phase shift may be introduced. This paper presents a method using cross correlation and phase shift correction to improve the accuracy of crack sizing in t

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Eggermont, Jos J. "Sound-Induced Synchronization of Neural Activity Between and Within Three Auditory Cortical Areas." Journal of Neurophysiology 83, no. 5 (2000): 2708–22. http://dx.doi.org/10.1152/jn.2000.83.5.2708.

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Neural synchrony within and between auditory cortical fields is evaluated with respect to its potential role in feature binding and in the coding of tone and noise sound pressure level. Simultaneous recordings were made in 24 cats with either two electrodes in primary auditory cortex (AI) and one in anterior auditory field (AAF) or one electrode each in AI, AAF, and secondary auditory cortex. Cross-correlograms (CCHs) for 1-ms binwidth were calculated for tone pips, noise bursts, and silence (i.e., poststimulus) as a function of intensity level. Across stimuli and intensity levels the total pe

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Nowak, L. G., M. H. J. Munk, A. C. James, P. Girard, and J. Bullier. "Cross-Correlation Study of the Temporal Interactions Between Areas V1 and V2 of the Macaque Monkey." Journal of Neurophysiology 81, no. 3 (1999): 1057–74. http://dx.doi.org/10.1152/jn.1999.81.3.1057.

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Cross-correlation study of the temporal interactions between areas V1 and V2 of the macaque monkey. Cross-correlation studies performed in cat visual cortex have shown that neurons in different cortical areas of the same hemisphere or in corresponding areas of opposite hemispheres tend to synchronize their activities. The presence of synchronization may be related to the parallel organization of the cat visual system, in which different cortical areas can be activated in parallel from the lateral geniculate nucleus. We wanted to determine whether interareal synchronization of firing can also b

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Kazemian, Mohsen. "Peak-to-Average Power Ratio Reduction Based on Cross- Correlation in Orthogonal Frequency Division Multiplexing Systems." Frontiers of Mechatronical Engineering 1, no. 1 (2018): 87. http://dx.doi.org/10.18282/fme.v1i1.603.

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<p>Three of the most important techniques of Peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems are Partial Transmit Sequence PAPR (PTS-PAPR), Selected Mapping PAPR (SLM-PAPR) and Cross-Correlation-PTS. This paper performs a complete analysis on these three techniques providing simulation and discussion of their performance on PAPR reduction and bit error rate (BER). Moreover, the comparison of these methods by using Saleh model amplifier in an OFDM system is provided. The results show that PTS-PAPR outperforms the Cross-Correlation-

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Gaskell, C. Martin, Anuradha P. Koratkar, and Linda S. Sparke. "Investigations of Broad Line Region Structure and Kinematics Using Variability." Symposium - International Astronomical Union 134 (1989): 93–95. http://dx.doi.org/10.1017/s0074180900140458.

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Gaskell and Sparke (1986) showed that one can determine the sizes of BLRs more accurately that the mean sampling interval by cross-correlating the continuum flux time series with a line flux time series. The position of the peak in the cross-correlation function (CCF) and its shape give an indication of the BLR size. The technique is explained in detail in Gaskell and Peterson (1987). The widely propagated misunderstanding is that the method involves simply interpolating both time series and cross-correlating them (in which case the CCF is dominated by the cross-correlations of “made-up” data)

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Charonko, John J., and Pavlos P. Vlachos. "Estimation of uncertainty bounds for individual particle image velocimetry measurements from cross-correlation peak ratio." Measurement Science and Technology 24, no. 6 (2013): 065301. http://dx.doi.org/10.1088/0957-0233/24/6/065301.

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Krishnamurthy, V. V., and John E. Casida. "Long-range CH correlation 2D NMR spectroscopy 3—long-rangeJ modulation of cross-peak intensities." Magnetic Resonance in Chemistry 26, no. 5 (1988): 367–72. http://dx.doi.org/10.1002/mrc.1260260505.

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Furfaro, M. E., N. Marigheto, G. K. Moates, et al. "Multidimensional NMR cross-correlation relaxation study of carrot phloem and xylem. Part I: Peak assignment." Applied Magnetic Resonance 35, no. 4 (2009): 521–35. http://dx.doi.org/10.1007/s00723-009-0183-3.

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28

Vojciechowski, A. S., E. V. Rodrigues, J. Melo Filho, L. H. Gallo, C. T. Silva, and A. R. Gomes. "CORRELATION BETWEEN PEAK TORQUE WITH THE CROSS-SECTIONAL AREA OF QUADRICEPS IN COMMUNITY OLDER WOMEN." Innovation in Aging 1, suppl_1 (2017): 776. http://dx.doi.org/10.1093/geroni/igx004.2813.

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29

Sun, Xiyan, Shaojie Song, Yuanfa Ji, Xingli Gan, Suqing Yan, and Xizi Jia. "An Unambiguous Synchronization Scheme for GNSS BOC Signals Based on Reconstructed Correlation Function." Sensors 21, no. 6 (2021): 1982. http://dx.doi.org/10.3390/s21061982.

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Binary offset carrier (BOC) modulation is a new modulation method that has been gradually applied to the Global Satellite Navigation System (GNSS) in recent years. However, due to the multi-peaks in its auto-correlation function (ACF), it will incur a false lock and generate synchronization ambiguous potentially. In this paper, an unambiguous synchronization method based on a reconstructed correlation function is proposed to solve the ambiguity problem. First, through the shape code vector constructed in this paper, the general cross-correlation function (CCF) expression of the BOC modulated s

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Zhang, Chuan Yi, Chang Wei Mi, and Pei Yang Yao. "Research on Sound Source Localization System Based on Time Delay Estimation." Applied Mechanics and Materials 397-400 (September 2013): 2209–14. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.2209.

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In the estimation of time delay, there always would not appear obvious peak with the basic cross-correlation (CC). In order to solve the problem of the basic cross-correlation method, this essay represents an improved time delay estimation method based on the generalized cross-correlation (GCC) and combines with the microphone array structure to achieve sound source localization. Finally, the simulation results show that this method could measure the sound source’s location accurately with noise and reverberation, and the distance positioning error is less than 10cm, the direction angle error

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Song, J., L. Ma, E. Whitenton, and T. Vorburger. "2D and 3D Surface Texture Comparisons Using Autocorrelation Functions." Key Engineering Materials 295-296 (October 2005): 437–40. http://dx.doi.org/10.4028/www.scientific.net/kem.295-296.437.

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Autocorrelation and cross-correlation functions are proposed for 2D and 3D surface texture comparisons. At the maximum correlation point of the two correlated surface textures, there is a peak shown at the cross-correlation curve. It is proposed to generate a difference function at the maximum correlation point for evaluation of the difference between the two compared surface textures. Based on this method, the National Institute of Standards and Technology (NIST) bullet signature measurement system is developed for the bullet signature measurements of NIST standard bullets.

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Yang, Gang, Wei Dong Li, Yu Tao Wang, and Ming Yu Li. "A Combined Interpolation Method for Cross Correlation Based Particle Velocity Measurement." Advanced Materials Research 508 (April 2012): 67–70. http://dx.doi.org/10.4028/www.scientific.net/amr.508.67.

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Cross correlation techniques have been proved to be a valuable tool for online continuous velocity measurement of particulate solids in pneumatic pipelines. In order to reduce computational complexity the sampling frequency is usually kept as low as possible, and the peak in the correlation function is found by interpolating the correlation function. Parabola functions are commonly used as parametric models of the cross correlation function in time delay estimation. However, the parabolic-fit interpolation method introduces a bias at low sampling rate to the center frequency ratio of input sig

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CHOI, SooHwan, and DooSeop EOM. "Minimizing False Peak Errors in Generalized Cross-Correlation Time Delay Estimation Using Subsample Time Delay Estimation." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E96.A, no. 1 (2013): 304–11. http://dx.doi.org/10.1587/transfun.e96.a.304.

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Johari, A., B. Vali, and H. Golkarfard. "System reliability analysis of ground response based on peak ground acceleration considering soil layers cross-correlation." Soil Dynamics and Earthquake Engineering 141 (February 2021): 106475. http://dx.doi.org/10.1016/j.soildyn.2020.106475.

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35

Chen, Chulung, and Chih-Sung Wu. "Polychromatic pattern recognition using the non-zero-order joint transform correlator with cross-correlation peak optimization." Journal of Modern Optics 50, no. 9 (2003): 1353–64. http://dx.doi.org/10.1080/09500340308235209.

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Schoenherr, Désirée, Jane Paulick, Bernhard M. Strauss, et al. "Identification of movement synchrony: Validation of windowed cross-lagged correlation and -regression with peak-picking algorithm." PLOS ONE 14, no. 2 (2019): e0211494. http://dx.doi.org/10.1371/journal.pone.0211494.

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Huang, Cheng, Ping Yi, Futai Zou, Yao Yao, Wei Wang, and Ting Zhu. "CCID: Cross-Correlation Identity Distinction Method for Detecting Shrew DDoS." Wireless Communications and Mobile Computing 2019 (February 20, 2019): 1–9. http://dx.doi.org/10.1155/2019/6705347.

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This study presents a new method for detecting Shrew DDoS (Distributed Denial of Service) attacks and analyzes the characteristics of the Shrew DDoS attack. Shrew DDoS is periodic to be suitable for the server’s TCP (Transmission Control Protocol) timer. It has lower maximum to bypass peak detection. This periodicity makes it distinguishable from normal data packets. By proposing the CCID (Cross-Correlation Identity Distinction) method to distinguish the flow properties, it quantifies the difference between a normal flow and an attack flow. Simultaneously, we calculated the cross-correlation b

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Qian, Yi Xian, Li Bao Yang, Xiao Wei Cheng, and Xue Ting Hong. "Improved Method of Target Detection on Optoelectronic Hybrid Joint Transform Correlator in Cluttered Scences." Applied Mechanics and Materials 130-134 (October 2011): 4041–44. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.4041.

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A classical joint transform correlator (JTC) usually yields large correlation sidelobes as well as a large correlation peak width, strong zero-order peak, and low diffraction efficiency, which make the detection ability of JTC lower. To overcome these difficulties, firstly, a joint power spectrum (JPS) subtraction technique in Fourier plane was proposed, where reference image power spectrum and object image power spectrum are subtracted from the JPS before inverse Fourier-transform operation, it is obvious that the modified JPS removes the zero-order term. Secondly, a fringe-adjusted filter (F

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Buchanan, James T., and Stefan Kasicki. "Segmental Distribution of Common Synaptic Inputs to Spinal Motoneurons During Fictive Swimming in the Lamprey." Journal of Neurophysiology 82, no. 3 (1999): 1156–63. http://dx.doi.org/10.1152/jn.1999.82.3.1156.

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These experiments were designed to measure the degree of shared synaptic inputs coming to pairs of myotomal motoneurons during swimming activity in the isolated spinal cord of the lamprey. In addition, the experiments measured the decrease in the degree of shared synaptic inputs with the distance between the motoneurons to assess the segmental distribution of these shared inputs. Intracellular microelectrode recordings of membrane potential were made simultaneously on pairs of myotomal motoneurons during swimming activity induced with an excitatory amino acid. The swim cycle oscillations of mo

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Pauluis, Quentin. "Statistical Signs of Common Inhibitory Feedback with Delay." Neural Computation 12, no. 11 (2000): 2513–18. http://dx.doi.org/10.1162/089976600300014818.

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Cross-correlation histograms (CCHs) sometimes exhibit an isolated central peak flanked by two troughs. What can cause this pattern? The absence of CCH satellite peak makes an oscillatory common input doubtful. It is here shown using a simple counting model that a common inhibitory feedback with delay can account for this pattern.

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Colder, B. W., C. L. Wilson, R. C. Frysinger, L. C. Chao, R. M. Harper, and J. Engel. "Neuronal synchrony in relation to burst discharge in epileptic human temporal lobes." Journal of Neurophysiology 75, no. 6 (1996): 2496–508. http://dx.doi.org/10.1152/jn.1996.75.6.2496.

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1. Synchronous interactions between neurons in mesial temporal structures of patients with complex partial seizures were studied using cross-correlation analyses. We recorded spontaneous activity from 293 neurons in 24 patients during the interictal state. Patients had depth microelectrodes chronically implanted in amygdala, hippocampal formation, and parahippocampal gyrus to record epileptic activity. One hundred twenty-five cells were recorded from the temporal lobe commonly initiating seizures (ipsilateral temporal lobe), and 168 cells from the contralateral temporal lobe. Eight hundred for

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Xie, Junfeng, Fan Mo, Chao Yang, Pin Li, and Shiqiang Tian. "A NOVEL SUB-PIXEL MATCHING ALGORITHM BASED ON PHASE CORRELATION USING PEAK CALCULATION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 3, 2016): 253–57. http://dx.doi.org/10.5194/isprsarchives-xli-b1-253-2016.

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The matching accuracy of homonymy points of stereo images is a key point in the development of photogrammetry, which influences the geometrical accuracy of the image products. This paper presents a novel sub-pixel matching method phase correlation using peak calculation to improve the matching accuracy. The peak theoretic centre that means to sub-pixel deviation can be acquired by Peak Calculation (PC) according to inherent geometrical relationship, which is generated by inverse normalized cross-power spectrum, and the mismatching points are rejected by two strategies: window constraint, which

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Xie, Junfeng, Fan Mo, Chao Yang, Pin Li, and Shiqiang Tian. "A NOVEL SUB-PIXEL MATCHING ALGORITHM BASED ON PHASE CORRELATION USING PEAK CALCULATION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 3, 2016): 253–57. http://dx.doi.org/10.5194/isprs-archives-xli-b1-253-2016.

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The matching accuracy of homonymy points of stereo images is a key point in the development of photogrammetry, which influences the geometrical accuracy of the image products. This paper presents a novel sub-pixel matching method phase correlation using peak calculation to improve the matching accuracy. The peak theoretic centre that means to sub-pixel deviation can be acquired by Peak Calculation (PC) according to inherent geometrical relationship, which is generated by inverse normalized cross-power spectrum, and the mismatching points are rejected by two strategies: window constraint, which

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Garg, Vinayak, Akariti Sharma, and R. K. Moudgil. "Finite-T correlations and free exchange-correlation energy of quasi-one-dimensional electron gas." Modern Physics Letters B 32, no. 05 (2018): 1850060. http://dx.doi.org/10.1142/s0217984918500604.

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We have studied the effect of temperature on static density–density correlations and plasmon excitation spectrum of quasi-one-dimensional electron gas (Q1DEG) using the random phase approximation (RPA). Numerical results for static structure factor, pair-correlation function, static density susceptibility, free exchange-correlation energy and plasmon dispersion are presented over a wide range of temperature and electron density. As an interesting result, we find that the short-range correlations exhibit a non-monotonic dependence on temperature T, initially growing stronger (i.e. the pair-corr

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Moritz, Chet T., Evangelos A. Christou, François G. Meyer, and Roger M. Enoka. "Coherence at 16-32 Hz Can Be Caused by Short-Term Synchrony of Motor Units." Journal of Neurophysiology 94, no. 1 (2005): 105–18. http://dx.doi.org/10.1152/jn.01179.2004.

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Time- and frequency-domain measures of discharge times for pairs of motor units are used to infer the proportion of common synaptic input received by motor neurons. The physiological mechanisms that can produce the experimentally observed peaks in the cross-correlation histogram and the coherence spectrum are uncertain. The present study used a computational model to impose synchronization on the discharge times of motor units. Randomly selected discharge times of a unit that was being synchronized to a reference unit were aligned with some of the discharge times of the reference unit, provide

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Spiesberger, John L. "Finding the right cross‐correlation peak for locating sounds in multipath environments with a fourth‐moment function." Journal of the Acoustical Society of America 109, no. 5 (2001): 2298. http://dx.doi.org/10.1121/1.4744060.

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Spiesberger, John L. "Finding the right cross-correlation peak for locating sounds in multipath environments with a fourth-moment function." Journal of the Acoustical Society of America 108, no. 3 (2000): 1349. http://dx.doi.org/10.1121/1.1287709.

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JIA, ZHENG-LIN, and DONG-CHENG MEI. "THE CRITICAL EFFECTS OF TIME DELAY AND NOISE CORRELATION ON STOCHASTIC RESONANCE IN AN ASYMMETRIC BISTABLE SYSTEM." Modern Physics Letters B 25, no. 16 (2011): 1377–91. http://dx.doi.org/10.1142/s0217984911026310.

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We investigate the effects of time delay and noise correlation on the stochastic resonance induced by a multiplicative signal in an asymmetric bistable system. By the two-state theory and small delay approximation, the expression of the output signal-to-noise ratio (SNR) is obtained in the adiabatic limit. The results show that SNR as a function of the multiplicative noise intensity D shows a transition from two peaks to one peak with the decreasing of cross-correlation strength λ and the increasing of delay time τ. Moreover, there are the doubly critical phenomena for SNR versus λ and τ, and

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Colavincenzo, Manuel, Xiuhui Tan, Simone Ammazzalorso, et al. "Searching for gamma-ray emission from galaxy clusters at low redshift." Monthly Notices of the Royal Astronomical Society 491, no. 3 (2019): 3225–44. http://dx.doi.org/10.1093/mnras/stz3263.

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ABSTRACT We report the identification of a positive cross-correlation signal between the unresolved gamma-ray emission, measured by the Fermi Large Area Telescope, and four different galaxy cluster catalogues. The selected catalogues peak at low-redshift and span different frequency bands, including infrared, optical, and X-rays. The signal-to-noise ratio of the detected cross-correlation amounts to 3.5 in the most significant case. We investigate and comment about its possible origin, in terms of compact gamma-ray emission from AGNs inside clusters or diffuse emission from the intracluster me

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Salisbury, Dereck L., and Fang Yu. "RELATIONSHIP OF CARDIOPULMONARY EXERCISE TESTING AND FIELD WALKING TESTS IN MILD-MODERATE ALZHEIMER’S DEMENTIA." Innovation in Aging 3, Supplement_1 (2019): S611. http://dx.doi.org/10.1093/geroni/igz038.2275.

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Abstract The purpose of this study was to investigate relationships among peak exercise parameters on 6-minute walk (6MWT) and shuttle walk tests (SWT), and laboratory-based cardiopulmonary exercise testing (CPET). These relationships have been established in cardiopulmonary patient populations, but not in community-dwelling older adults with mild-moderate Alzheimer’s dementia (AD). This study is a cross-sectional analysis of the baseline data of 6MWT, SWT, and CPET from the FIT-AD Trial (n=88: 49 males [76.6 {7.0} years and MMSE 21.5{3.5}] and 39 females [77.3 {6.5} years and MMSE 22.1 {3.4}]

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