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Journal articles on the topic 'Hamming window'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Samad, Md Abdus, Jia Uddin, and Md Razu Ahmed. "FIR Filter Design Using Modified Lanczos Window Function." Advanced Materials Research 566 (September 2012): 49–56. http://dx.doi.org/10.4028/www.scientific.net/amr.566.49.

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Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signal processing and measurements. However, the problem is usual window based FIR filter design lies in its side lobes amplitudes that are higher than the requirement of application. We propose a modified Lanczos window function by heuristic by examining the Lanczos window, which has better performance like equiripple, minimum side lobe compared to the several commonly used windows. The proposed window has slightly larger main lobe width of the commonly used Hamming window, while featuring 5.1~18.5 dB

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2

Siswono, Hartono, Widyastuti Widyastuti, Yohanes Dovan, and Dyah Nur’ainingsih. "Design of Fir Digital Bandpass Filter with Hamming Window and Hanning Window Method for Fetal Doppler." Jurnal Ilmiah Teknik Elektro Komputer dan Informatika 9, no. 4 (2023): 912–26. https://doi.org/10.26555/jiteki.v9i4.26849.

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Fetal heart rate using Doppler Ultrasound is a standard method to assess fetal health. Examination of the fetal heart with a Doppler device is more convenient for women. Fetal Doppler can accidentally take the mother's heartbeat. A filter is needed to enhance the audibility of fetal heartbeats while suppressing unwanted frequencies and noise. The normal fetal heart rate ranges from 120 to 160 beats per minute, or 2 Hz - 3 Hz. This frequency can be filtered using a bandpass filter. the digital FIR bandpass filter were created using the Hamming and Hanning window methods. The results of the FIR

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3

Mottaghi-Kashtiban, M., and M. G. Shayesteh. "New efficient window function, replacement for the Hamming window." IET Signal Processing 5, no. 5 (2011): 499. http://dx.doi.org/10.1049/iet-spr.2010.0272.

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4

Bojkovic, Zoran S., Bojan M. Bakmaz, and Miodrag R. Bakmaz. "Hamming Window to the Digital World." Proceedings of the IEEE 105, no. 6 (2017): 1185–90. http://dx.doi.org/10.1109/jproc.2017.2697118.

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5

Mustofa, Yoga, and Intan Andriani Putri. "Pengaruh Bentuk Window Short Time Fourier Transform Half Cepstrum pada Peningkatan Resolusi Seismik Refleksi di Lapangan Penobscot Kanada." Jurnal Geofisika 20, no. 2 (2022): 81. https://doi.org/10.36435/jgf.v20i2.550.

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Batuan karbonat dapat menjadi alternatif dalam pencarian cadangan hidrokarbon pada industri minyak dan gas bumi. Sebagian besar produksi hidrokarbon di Indonesia dan bahkan dunia berasal dari reservoir karbonat. Data seismik konvensional memiliki lebar frekuensi yang terbatas, sehingga tidak dapat menggambarkan lapisan-lapisan tipis di bawah tuning thickness. Maka dari itu perlu untuk meningkatkan resolusi seismik dengan ketebalan lapisan di bawah tuning thickness. Penelitian ini dilakukan pada Lapangan 3D Penobscot Formasi Baccaro dengan litologi karbonat, Nova Scotia, dengan menggunakan algo

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Ahmad, Ashraf Adamu, Abdullahi Daniyan, and David Ocholi Gabriel. "Selection of window for inter-pulse analysis of simple pulsed radar signal using the short time Fourier transform." International Journal of Engineering & Technology 4, no. 4 (2015): 531. http://dx.doi.org/10.14419/ijet.v4i4.5139.

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The electronic intelligence (ELINT) system is used by the military to detect, extract information and classify incoming radar signals. This work utilizes short time Fourier transform (STFT) - time frequency distribution (TFD) for inter-pulse analysis of the radar signal in order to estimate basic radar signal time parameters (pulse width and pulse repetition period). Four well-known windows functions of different and unique characteristics were used for the localization of STFT to determine their various effects on the analysis. The window functions are Hamming, Hanning, Bartlett and Blackman

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Lee, Judy P., and Melvin B. Comisarow. "Advantageous Apodization Functions for Magnitude-Mode Fourier Transform Spectroscopy." Applied Spectroscopy 41, no. 1 (1987): 93–98. http://dx.doi.org/10.1366/0003702874868016.

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A systematic examination of the efficacy of window functions for reducing the spectral skirt of magnitude-mode Fourier transform spectra is reported. The efficacy is examined for the general case of a damped time-domain signal, with specific cases ranging from undamped to essentially completely damped signals. The choice of the optimal window is dependent upon the required dynamic range and the amount of damping in the time-domain data. For a dynamic range of less than 100:1 and moderate damping, the Hamming window is the window of choice. For larger dynamic ranges or greater damping, the 3-te

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Amal, Muhammad Alwi Adnan, Dodi Zulherman, and Rahmat Widadi. "Klasifikasi Sinyal Phonocardiogram Menggunakan Short Time Fourier Transform dan Convolutional Neural Network." Jurnal Teknologi Informasi dan Ilmu Komputer 10, no. 2 (2023): 237–44. https://doi.org/10.25126/jtiik.20235424.

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Berdasarkan laporan American Heart Association, penyakit kardiovaskular menjadi penyebab kematian global tertinggi. Phonocardiogram (PCG) dan electrocardiogram (ECG) biasanya digunakan untuk mendeteksi penyakit jantung. Penggunaan sinyal PCG memberikan hasil prediksi yang lebih baik pada deteksi penyakit jantung bila dibandingkan dengan ECG. Tetapi, penggunaan PCG secara elektronik membutuhkan analisis sinyal yang kompleks untuk mengklasifikasikan kondisi jantung. Penelitian ini bertujuan merancang suatu sistem klasifikasi sinyal PCG berdasarkan metode ekstraksi fitur menggunakan Short Time Fo

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9

Xu, Shanding, Xiwang Cao, Jiafu Mi, and Chunming Tang. "Simplified Bounds on FHSs Set and Its Strictly Optimal Construction." International Journal of Foundations of Computer Science 31, no. 04 (2020): 499–513. http://dx.doi.org/10.1142/s0129054120500215.

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Frequency-hopping sequences (FHSs) with favorite partial Hamming correlation properties are intensively needed in many synchronization and multiple-access systems. Strictly optimal FHS sets are a kind of FHS sets which has optimal Hamming correlation for any correlation window. In this paper, firstly we present simplified representations of the generalized Lempel–Greenberger bound on the partial Hamming autocorrelation of an FHS and the generalized Peng-Fan bound on the partial Hamming correlation of an FHS set, respectively. Secondly, we propose a direct construction of strictly optimal FHS s

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10

San, San Naing, Ei San Pann, and Ma Gyi Ma. "Performance Analysis of FIR Filter using FDATool." International Journal of Trend in Scientific Research and Development 3, no. 5 (2019): 1081–85. https://doi.org/10.5281/zenodo.3590530.

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The performance analysis of the FIR filter is presented by testing with different windowing methods. The FIR low pass filter was designed with the windowing system. It was simulated by setting different orders for comparing the performances of the filter. And then, it was also tested with different windowing methods. The performances of FIR low pass filter are analyzed by setting various order numbers such as 10, 20, 50 and 100. These identified FIR filters are designed with four windowing methods. They are Kaiser Window, Hamming Window, Blackman Window and Flat Top Window. The FIR filter is d

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11

Wang, Yun Long, and Shi Hu Wang. "An Excellent 2D Window Function." Applied Mechanics and Materials 651-653 (September 2014): 2116–20. http://dx.doi.org/10.4028/www.scientific.net/amm.651-653.2116.

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In the aid of sinc sum function and matrix equation a new 2D window function is obtained. It is as simple as a 2D cosine window function. Comparison shows that the new 2D window function can provide much better 2D FIR filters than 2D Hamming window function. Maximum passband ripples are about 2.5-3.5 times smaller and maximum stopband ripples are about 1.5 times smaller with equal or very small different passband and stopband edge frequencies.

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Ivanov, A. I., A. P. Yunin, M. A. Boyarshinov, and A. P. Ivanov. "The Perspective of Binary and Tertiary Artificial Neurons Mutual Application for White Noise Quality Analysis within Hamming Window Convolution Calculated by Different Modules." Intellekt. Sist. Proizv. 20, no. 3 (2022): 88–93. http://dx.doi.org/10.22213/2410-9304-2022-3-88-93.

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The work is devoted to simplification of binary sequence quality testing, obtained either from physical noise generators, or from instable part of human biometric data. The problem originated from exponential computational complexity of a frequently used test “pressing keys by mistake”. As a result, such a test can be realized only on a powerful computer. The work shows that the simplest testing of white noise quality is performed by counting of units. It can be considered as a special case of Hamming window convolution, calculated by module two in comparison with unit code «111...11». A gener

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Mbachu, C. B. "Height Adjustable Triangular (HAT) Window Function for Impulse Response Modification of Signal Processing Systems." European Journal of Engineering Research and Science 5, no. 3 (2020): 358–66. http://dx.doi.org/10.24018/ejers.2020.5.3.1442.

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A widow function, in signal processing and statistics, is a mathematical function that has zero values outside its chosen interval or limit of sequence, normally symmetric around the middle of the interval. Usually the middle of the window is either maximum or near maximum and tappers smoothly as it moves away to the sides. When another function or sequence of data is mathematically multiplied by the window function it forces the product to assume its nature of zero-value outside the interval and tapering from middle to the sides. Windows are finite functions and their main function is to modi

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14

Mbachu, C. B. "Height Adjustable Triangular (HAT) Window Function for Impulse Response Modification of Signal Processing Systems." European Journal of Engineering and Technology Research 5, no. 3 (2020): 358–66. http://dx.doi.org/10.24018/ejeng.2020.5.3.1442.

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A widow function, in signal processing and statistics, is a mathematical function that has zero values outside its chosen interval or limit of sequence, normally symmetric around the middle of the interval. Usually the middle of the window is either maximum or near maximum and tappers smoothly as it moves away to the sides. When another function or sequence of data is mathematically multiplied by the window function it forces the product to assume its nature of zero-value outside the interval and tapering from middle to the sides. Windows are finite functions and their main function is to modi

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15

Chew, Kim Mey, Rubita Sudirman, Norhudah Seman, and Ching Yee Yong. "Signal Processing of Microwave Imaging Brain Tumor Detection Using Superposition Windowing." Applied Mechanics and Materials 654 (October 2014): 321–26. http://dx.doi.org/10.4028/www.scientific.net/amm.654.321.

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This paper discusses the selection of window function for signal processing in microwave imaging brain tumor detection. Most of the window functions are non-negative bell-shaped curves. This paper proposed a superposition windowing function for better time series data analyses and enhancement. The performance of the selected five window functions (Hamming, Blackman-Harris, Parzen, Chebyshev and Bartlett-Hanning) and the proposed superposition window were compared and evaluated. The results show the superposition window function is potentially reduce the unwanted noise and preserve important in

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16

AVCİ, Kemal. "Design of fir filters using exponential--Hamming window family." TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES 24 (2016): 2513–24. http://dx.doi.org/10.3906/elk-1312-246.

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17

Cheng, Lingfeng, Shuyan Ni, and Shimiao Chen. "An Improved PMF-FFT Algorithm Based on Hamming Window." Journal of Physics: Conference Series 2093, no. 1 (2021): 012037. http://dx.doi.org/10.1088/1742-6596/2093/1/012037.

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Abstract When the rocket uses low-orbit satellite space-based measurement and control, due to the relatively large Doppler shift in relative motion, a spread spectrum system is needed to improve anti-interference; the spread spectrum signal under high dynamic conditions often uses partial matched filtering based on FFT (PMF-FFT) algorithm, but due to the introduction of FFT, this algorithm has serious scallop loss, which affects the system’s capture performance. Through the improved method of adding a Hamming window to the system, theoretical analysis and simulation show that it effectively su

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18

Podder, Prajoy, Tanvir Zaman Khan, Mamdudul Haque Khan, and M. Muktadir Rahman. "Comparative Performance Analysis of Hamming, Hanning and Blackman Window." International Journal of Computer Applications 96, no. 18 (2014): 1–7. http://dx.doi.org/10.5120/16891-6927.

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19

LIDYAWATI, LITA, PAULINE RAHMIATI, and YULI SUNARTI. "Implementasi Filter Finite Impulse Response (FIR) Window Hamming dan Blackman menggunakan DSK TMS320C6713." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 4, no. 1 (2018): 16. http://dx.doi.org/10.26760/elkomika.v4i1.16.

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ABSTRAKFilter didefinisikan sebagai proses atau rangkaian yang melewatkan pita frekuensi tertentu yang diinginkan dan meredam pita frekuensi lainnya. Salah satu metode perancangan filter digital Finite Impulse Response (FIR) adalah metode windowing. Dalam penelitian ini digunakan jenis window Hamming dan Blackman. Simulasi dilakukan dengan menggunakan software Matlab dengan memasukan frekuensi passband, frekuensi stopband, ripple passband, dan stopband attenuation. Dengan frekuensi sampling sebesar 15000 Hz, frekuensi passband sebesar 3000 Hz, frekuensi stopband sebesar 5000 Hz. Setelah simula

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20

Amal, Muhammad Alwi Adnan, Dodi Zulherman, and Rahmat Widadi. "Klasifikasi Sinyal Phonocardiogram Menggunakan Short Time Fourier Transform dan Convolutional Neural Network." Jurnal Teknologi Informasi dan Ilmu Komputer 10, no. 2 (2023): 237. http://dx.doi.org/10.25126/jtiik.20231015424.

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<p>Berdasarkan laporan <em>American Heart Association</em>, penyakit kardiovaskular menjadi penyebab kematian global tertinggi. <em>Phonocardiogram</em> (PCG) dan <em>electrocardiogram</em> (ECG) biasanya digunakan untuk mendeteksi penyakit jantung. Penggunaan sinyal PCG memberikan hasil prediksi yang lebih baik pada deteksi penyakit jantung bila dibandingkan dengan ECG. Tetapi, penggunaan PCG secara elektronik membutuhkan analisis sinyal yang kompleks untuk mengklasifikasikan kondisi jantung. Penelitian ini bertujuan merancang suatu sistem klasifikasi

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21

Lee, Hyungkyi, Philip M. Holmes, James Greenleaf, and Matthew W. Urban. "Crosstalk analysis of comb detection for measuring shear wave propagation." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A266. http://dx.doi.org/10.1121/10.0018802.

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Applications, such as shear wave elastography and Doppler imaging, require high frame rates. Plane wave compounding (PWC) is widely used for these applications. Comb detection was proposed to combine the high frame rate of PWC and the high signal quality of focused beam scanning. Comb detection transmits multiple focused beams simultaneously to increase the frame rate. These comb beams are scanned laterally to cover the whole region-of-interest. The simultaneous multiple transmission of focused beams causes crosstalk between neighboring beams. Transmit crosstalk is related to the pressure fiel

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22

Mbachu, C. B. "Height Adjustable Sine (HAS) Window Function for Impulse Response Modification of Signal Processing Systems." European Journal of Engineering Research and Science 5, no. 3 (2020): 367–74. http://dx.doi.org/10.24018/ejers.2020.5.3.1443.

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A widow function, in signal processing and statistics, is a mathematical function that has zero values outside its chosen interval or limit of sequence, normally symmetric around the middle of the interval. Usually the middle of the window is either maximum or near maximum and tappers smoothly as it moves away to the sides. When another function or sequence of data is mathematically multiplied by the window function the product assumes the appearance and characteristics of the window function. That is, the product is also zero-valued outside the interval and tapering from middle to the sides.

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Mbachu, C. B. "Height Adjustable Sine (HAS) Window Function for Impulse Response Modification of Signal Processing Systems." European Journal of Engineering and Technology Research 5, no. 3 (2020): 367–74. http://dx.doi.org/10.24018/ejeng.2020.5.3.1443.

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A widow function, in signal processing and statistics, is a mathematical function that has zero values outside its chosen interval or limit of sequence, normally symmetric around the middle of the interval. Usually the middle of the window is either maximum or near maximum and tappers smoothly as it moves away to the sides. When another function or sequence of data is mathematically multiplied by the window function the product assumes the appearance and characteristics of the window function. That is, the product is also zero-valued outside the interval and tapering from middle to the sides.

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24

Bai, Le Qiang, and Xue Wei Zhang. "Improved Window Function in the Application of MFCC Feature Parameter Extraction." Applied Mechanics and Materials 556-562 (May 2014): 3703–6. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.3703.

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In view of spectrum leakage and the contradictory problem of spectrum accuracy of main lobe and reducing spectrum leakage, MFCC algorithm based on improved window function is proposed. Improved window function is based on the mathematical analysis of Kaiser window, and under the condition of finite sampling points minuses weighted impact function where is at the frequencies that side lobe peaks of correspond to. The amplitude of improved window compared with Kaiser window is smaller, and main lobe width is the same, solving the conflicting problem of main lobe width and side lobe amplitude and

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25

Rahaman, Imteaz, Md Ashraful Haque, Narinderjit Singh Sawaran Singh, et al. "Performance Analysis of Linearly Arranged Concentric Circular Antenna Array with Low Sidelobe Level and Beamwidth Using Robust Tapering Technique." Micromachines 13, no. 11 (2022): 1959. http://dx.doi.org/10.3390/mi13111959.

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In this research, a novel antenna array named Linearly arranged Concentric Circular Antenna Array (LCCAA) is proposed, concerning lower beamwidth, lower sidelobe level, sharp ability to detect false signals, and impressive SINR performance. The performance of the proposed LCCAA beamformer is compared with geometrically identical existing beamformers using the conventional technique where the LCCAA beamformer shows the lowest beamwidth and sidelobe level (SLL) of 12.50° and −15.17 dB with equal elements accordingly. However, the performance is degraded due to look direction error, for which rob

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26

Al-Barhan, Hussein A., Sinan M. Elyass, Thamir R. Saeed, Ghufran M. Hatem, and Hadi T. Ziboon. "Modified Speech Separation Deep Learning Network Based on Hamming window." IOP Conference Series: Materials Science and Engineering 1076, no. 1 (2021): 012059. http://dx.doi.org/10.1088/1757-899x/1076/1/012059.

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27

Daraghma, Raed S. M. "M-ary phase-shift keying using finite impulse response filter based on window function method." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 1 (2021): 451. http://dx.doi.org/10.11591/ijece.v11i1.pp451-457.

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Digital filters are vastly utilized in the area of communication. A perfect digital filter efficiency is significant and hence to design a digital finite impulse response filter (FIR) favorable all the wanted situations is necessary. In this paper, a new proposed FIR digital filter designed, the fineness of the submitted filter is tested in terms of BER and then matched with another window, namely Hamming, Hanning, and Blackman. The design procedure done in the MATLAB software. It is concluded that the Blackman window is the best window to design the FIR digital filter, because it is bit error

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Raed, S. M. Daraghma. "M-ary phase-shift keying using finite impulse response filter based on window function method." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 1 (2021): 451–57. https://doi.org/10.11591/ijece.v11i1.pp451-457.

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Digital filters are vastly utilized in the area of communication. A perfect digital filter efficiency is significant and hence to design a digital finite impulse response filter (FIR) favorable all the wanted situations is necessary. In this paper, a new proposed FIR digital filter designed, the fineness of the submitted filter is tested in terms of BER and then matched with another window, namely Hamming, Hanning, and Blackman. The design procedure done in the MATLAB software. It is concluded that the Blackman window is the best window to design the FIR digital filter, because it is bit error

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29

Mynuddin, Mohammed. "Designing a Low- Pass Fir Digital Filter by Using Hamming Window and Blackman Window Technique." Science Journal of Circuits, Systems and Signal Processing 4, no. 2 (2015): 9. http://dx.doi.org/10.11648/j.cssp.20150402.11.

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30

Martono, Niken Prasasti, and Hayato Ohwada. "Evaluating the Impact of Windowing Techniques on Fourier Transform-Preprocessed Signals for Deep Learning-Based ECG Classification." Hearts 5, no. 4 (2024): 501–15. http://dx.doi.org/10.3390/hearts5040037.

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(1) Background: Arrhythmias, or irregular heart rhythms, are a prevalent cardiovascular condition and are diagnosed using electrocardiogram (ECG) signals. Advances in deep learning have enabled automated analysis of these signals. However, the effectiveness of deep learning models depends greatly on the quality of signal preprocessing. This study evaluated the impact of different windowing techniques applied to Fourier transform-preprocessed ECG signals on the classification accuracy of deep learning models. (2) Methods: We applied three windowing techniques—Hamming, Hann, and Blackman—to tran

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Tan, Ming, Chunyang Wang, Hui Yuan, Juan Bai, and Lei An. "FDA-MIMO Beampattern Synthesis with Hamming Window Weighted Linear Frequency Increments." International Journal of Aerospace Engineering 2020 (April 16, 2020): 1–8. http://dx.doi.org/10.1155/2020/4851909.

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By utilizing a tiny frequency increment across the array elements, frequency diverse array (FDA) generates a beampattern possessing the property of range-angle-dependent. However, the beampattern of the conventional FDA is “S”-shaped, which means it is coupled in range-angle domains, resulting in low target indication accuracy and poor jamming suppression ability. In this paper, taking advantage of multiple-input multiple-output (MIMO) technique and multiple matched filters, a new FDA framework using Hamming window weighted linear frequency increments is proposed. Correct FDA-MIMO framework an

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Fernandes, Joana Filipa Teixeira, Diamantino Freitas, Arnaldo Candido Junior, and João Paulo Teixeira. "Determination of Harmonic Parameters in Pathological Voices—Efficient Algorithm." Applied Sciences 13, no. 4 (2023): 2333. http://dx.doi.org/10.3390/app13042333.

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The harmonic parameters Autocorrelation, Harmonic to Noise Ratio (HNR), and Noise to Harmonic Ratio are related to vocal quality, providing alternative measures of the harmonic energy of a speech signal. They will be used as input resources for an intelligent medical decision support system for the diagnosis of speech pathology. An efficient algorithm is important when implementing it on low-power devices. This article presents an algorithm that determines these parameters by optimizing the window type and length. The method used comparatively analyzes the values of the algorithm, with differe

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Tan, Jingjia, Lesheng He, and Jun Wang. "Signal acquisition and processing system based on zynq dual core." MATEC Web of Conferences 246 (2018): 03001. http://dx.doi.org/10.1051/matecconf/201824603001.

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In order to speed up the acquisition and processing of signal, this paper has developed a signal acquisition and processing system based on zynq platform. Based on the ARM Cortex-A9 dual-core and editable logic unit architecture of Zynq AP SoC platform, this paper implements a fully functional signal acquisition and processing system by software and hardware collaborative design. ARM0 is the main processor that controls system and shared resources. ARM1 is the slave processor. ARM1 is responsible for receiving the data converted by the AD7606 analog-to-digital chip. The data is sent to the Ham

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Kulagin, V. P., D. A. Akimov, S. A. Pavelyev, and E. O. Guryanova. "Identification of temporal anomalies of spectrograms of vibration measurements of a turbine generator rotor using a recurrent neural network autoencoder." Russian Technological Journal 9, no. 2 (2021): 78–87. http://dx.doi.org/10.32362/2500-316x-2021-9-2-78-87.

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A method is proposed for recognizing pre-emergency conditions of rotary installations based on the use of the Hamming window and advanced Deep Learning techniques in retrospective analysis of the results of accounting for the factors of operation of a turbine generator, diagnostics and control under critical impacts. A program of experimental studies on the model of a turbine plant with simulation of faults and receiving vibration signals has been developed. An experiment based on the homostatic method of checking the signal with Hamming windows, in the frequency, time and modulation domains a

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Albasu, Faisal, Mikhail Kulyabin, Aleksei Zhdanov, et al. "Electroretinogram Analysis Using a Short-Time Fourier Transform and Machine Learning Techniques." Bioengineering 11, no. 9 (2024): 866. http://dx.doi.org/10.3390/bioengineering11090866.

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Electroretinography (ERG) is a non-invasive method of assessing retinal function by recording the retina’s response to a brief flash of light. This study focused on optimizing the ERG waveform signal classification by utilizing Short-Time Fourier Transform (STFT) spectrogram preprocessing with a machine learning (ML) decision system. Several window functions of different sizes and window overlaps were compared to enhance feature extraction concerning specific ML algorithms. The obtained spectrograms were employed to train deep learning models alongside manual feature extraction for more classi

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Krishna, Dr B. Vamsy, Siva Ganeshraju Sarikonda, and Jonnakuti Sharath Chandra. "Design and Implementation Low Pass FIR Digital Filter Using Windowing Techniques." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 04 (2025): 1–9. https://doi.org/10.55041/ijsrem43943.

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A filter can need to have a certain frequency response, or a particular reaction to an impulse, step, or ramp, or mimic an analogue system. Digital filters can be categorised into Finite Impulse Response (FIR) filters & Infinite Impulse Response (IIR) filters depending on the system response. The thesis addresses FPGA low pass FIR filter design. Theoretical and experimental findings conducted FIR low pass filter point to the window design approach as very straightforward and user-friendly due to the presence of well-defined equation. Comparison indicated that the Direct-Form structure tech

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Sayed, Inayatullah S., and Siti S. Ismail. "Comparison of Low-Pass Filters for SPECT Imaging." International Journal of Biomedical Imaging 2020 (April 1, 2020): 1–9. http://dx.doi.org/10.1155/2020/9239753.

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In single photon emission computed tomography (SPECT) imaging, the choice of a suitable filter and its parameters for noise reduction purposes is a big challenge. Adverse effects on image quality arise if an improper filter is selected. Filtered back projection (FBP) is the most popular technique for image reconstruction in SPECT. With this technique, different types of reconstruction filters are used, such as the Butterworth and the Hamming. In this study, the effects on the quality of reconstructed images of the Butterworth filter were compared with the ones of the Hamming filter. A Philips

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Tabatadze, Vasil, Oleg Drobakhin, and Kamil Karaçuha. "Pulse diffraction by a circular dielectric cylinder." Journal of Electrical Engineering 74, no. 3 (2023): 188–96. http://dx.doi.org/10.2478/jee-2023-0025.

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Abstract In this article, the periodic pulse diffraction from the circular dielectric object radiated by the horn antenna is investigated and experimental verification is provided. The pulse spectrum with Hamming weight function (Hamming window) form occupies the frequency band of 38 – 52 GHz. The problem is solved using the Method of Auxiliary Sources, and the results of the computer simulation are obtained. The fundamental advantage of the method is to eliminate the singularity problem during the solution of the integral equation obtained by boundary conditions on each scatterer. The compari

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Gautam, Ganesh, Surendra Shrestha, and Seongsoo Cho. "Spectral Analysis of Rectangular, Hanning, Hamming and Kaiser Window for Digital Fir Filter." International journal of advanced smart convergence 4, no. 2 (2015): 138–44. http://dx.doi.org/10.7236/ijasc.2015.4.2.138.

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Wu, Yanping, Changlong Zheng, Meihui Hao, and Linlin Wang. "Implementation of a System for Assessing the Quality of Spoken English Pronunciation Based on Cognitive Heuristic Computing." Computational Intelligence and Neuroscience 2022 (July 8, 2022): 1–12. http://dx.doi.org/10.1155/2022/5239375.

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This paper analyzes and investigates the quality assessment of spoken English pronunciation using a cognitive heuristic computing approach and designs a corresponding spoken pronunciation quality assessment system for practical training. Using the general Goodness of Pronunciation assessment algorithm as a benchmark, the shortcomings of the traditional Goodness of Pronunciation method are explored through statistical experiments, and the validity of the overall posterior probability output from the speech model for pronunciation quality assessment is verified. For the analysis of rhythm, there

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Federico, Lorenzo, Remco Van Der Hofstad, Frank Den Hollander, and Tim Hulshof. "Expansion of Percolation Critical Points for Hamming Graphs." Combinatorics, Probability and Computing 29, no. 1 (2019): 68–100. http://dx.doi.org/10.1017/s0963548319000208.

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AbstractThe Hamming graph H(d, n) is the Cartesian product of d complete graphs on n vertices. Let ${m=d(n-1)}$ be the degree and $V = n^d$ be the number of vertices of H(d, n). Let $p_c^{(d)}$ be the critical point for bond percolation on H(d, n). We show that, for $d \in \mathbb{N}$ fixed and $n \to \infty$, $$p_c^{(d)} = {1 \over m} + {{2{d^2} - 1} \over {2{{(d - 1)}^2}}}{1 \over {{m^2}}} + O({m^{ - 3}}) + O({m^{ - 1}}{V^{ - 1/3}}),$$ which extends the asymptotics found in [10] by one order. The term $O(m^{-1}V^{-1/3})$ is the width of the critical window. For $d=4,5,6$ we have $m^{-3} = O(

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Feng, Xiaolong, Hao Liu, Cheng Zhang, Donghao Han, and Lijie Niu. "Improvement Method of Antenna Negative Sidelobes on Cross Beam Correlation Microwave Radiometer." Remote Sensing 16, no. 7 (2024): 1245. http://dx.doi.org/10.3390/rs16071245.

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A weighting method is proposed for the correlation radiation measurement system based on Mills cross array. The Mills cross array achieves high spatial resolution by the product of two orthogonal fan beams. However, the product power pattern of the Mills cross array lacks a square operation, resulting in sidelobe deterioration and the presence of negative sidelobes. Therefore, a window function is necessary to improve beam performance. However, because of the negative sidelobes, the antenna array is sensitive to the weighting function, and common window functions such as Hanning and Hamming ar

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Albagory, Yasser, and Fahad Alraddady. "Optimum Extrapolation Techniques for Two-Dimensional Antenna Array Tapered Beamforming." Electronics 11, no. 13 (2022): 1995. http://dx.doi.org/10.3390/electronics11131995.

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Optimizing antenna arrays is essential for achieving efficient beamforming with very low sidelobe level (SLL) where adopting tapered window functions is one of the straightforward efficient techniques for achieving this goal. Recently, two-dimensional (2D) beamforming has been extensively required for many applications; therefore, this paper proposes two extrapolation techniques applied to one-dimensional (1D) tapered functions to efficiently feed 2D antenna arrays using cross-linear and adaptive radial tapering techniques. The first proposed 2D cross-linear tapering technique determines the 2

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Ammar, A. Sahrab, and Doohee Yaseen Alaa. "Filtered orthogonal frequency division multiplexing for improved 5G systems." Bulletin of Electrical Engineering and Informatics 10, no. 4 (2021): 2079~2087. https://doi.org/10.5281/zenodo.5234415.

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Wireless communications became an integrated part of the human life. Fifth generation (5G) is the modern communication which provides enhanced mobile broadband (eMBB), ultra reliable low latency communications (URLLC), and massive machine type communication (mMTC). Thus, 5G have to provide coverage to multi-numerology devices, therefore, modulation and access schemes are suggested in the literature such as cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) and filtered OFDM (f-OFDM). CP-OFDM suffers from the high out of band emission which limited the multi-numerology applicati

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Xie, Hua Long, Fei Li, and Guo Cun Kang. "The Application Research of Six-Axis Force Sensor Used by Trans-Femoral Prosthesis." Advanced Materials Research 683 (April 2013): 741–44. http://dx.doi.org/10.4028/www.scientific.net/amr.683.741.

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Intelligent bionic leg (IBL) is an advanced trans-femoral prosthesis. First, the conception and structure component of IBL are introduced. Then, working principle of six-axis force sensor is analyzed in detail. The type selection and design of filter are discussed. In the end, the data filtering of low pass filter based on hamming window function is established and simulation is done. The simulation indicates that force and torque signal has a significant improvement after filtering and the filter designed in the paper is reasonable.

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Liu, Hong Li, Lei Shao, Hai Bin Zuo, and Nan Liu. "Application of Laser Doppler Technique in Measurement of Explosive Container Based on Frequency Correction." Applied Mechanics and Materials 391 (September 2013): 497–500. http://dx.doi.org/10.4028/www.scientific.net/amm.391.497.

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Dynamic measurement of explosion containment vessel deformation for explosive experiment is obtained using laser doppler effect. The system is based on optical heterodyning technologies, and uses half wave plate, quarter wave plate, polarization beam splitter and acousto-optic modulator to improve the intensity of doppler signal and signal-noise-ratio. Short time fourier transform and energy centrobaric correction method using hamming window is applied to improve the signal processing speed and the accuracy. The experimental results of explosive container are presented under 20g TNT explosion.

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Malik, Jyoti, G. Sainarayanan, and Ratna Dahiya. "Sliding Window Based Fast Corner Matching Palmprint Authentication." International Journal of Computer Vision and Image Processing 1, no. 3 (2011): 16–34. http://dx.doi.org/10.4018/ijcvip.2011070102.

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Authentication time is the main and important part of the authentication system. Normally the response time should be fast but as the number of persons in the database increases, there is probability of more response time taken for authentication. The need of fast authentication system arises so that authentication time (matching time) is very less. This paper proposes a sliding window approach to make fast authentication system. The highlight of sliding window method is constant matching time, fast and can match translated images also. Several palmprint matching methods like match by correlat

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Li, Xian Mao, Gao Ming Huang, and Dong Xia. "Spacial Filter of Weighting Method Based on Spectrum Analyse." Advanced Materials Research 605-607 (December 2012): 1890–96. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.1890.

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The selection of a certain scope angle signal in the traditional method is to switch the hard switches in antennas, this paper proposes a method, which based on a weighting method to filter the signal in certain directions, namely spacial filter. With array antennas，the compositive signal can be acquired, by which the phrase and plus (weighting) of each unit antenna’s signal be adjusted and then the signals be added. In different time, signals can be selected in any scope of directions through adjusting each channels by different weighting. The weighting parameters can be obtained through the

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Kamışlıoğlu, Bircan, and Nurhan Karaboğa. "Investigation of the performance of the Kaiser-Hamming window in design of QMF bank." Pamukkale University Journal of Engineering Sciences 25, no. 2 (2019): 165–73. http://dx.doi.org/10.5505/pajes.2019.37974.

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Kharsan, Jyoti, Shivani Yadav, and Pranay Kumar Rahi. "Efficient Design of Low Pass FIR Filter by Hamming, Blackman and Rectangular Window Techniques." IJARCCE 6, no. 3 (2017): 756–62. http://dx.doi.org/10.17148/ijarcce.2017.63179.

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