scholarly journals Comparison Study of Hamming and Kaiser Window over Band Pass Filter Banks in Cochlear Implant System

2019 ◽  
Vol 6 (5) ◽  
pp. 35-44
Author(s):  
N.Jagan Mohan Reddy
Keyword(s):  
Cochlear Implant ◽  
Filter Banks ◽  
Band Pass Filter ◽  
Comparison Study ◽  
Pass Filter ◽  
Band Pass ◽  
Implant System ◽  
Kaiser Window

Envelope Analysis Based on the Combination of Morlet Wavelet and Kurtogram

2012 ◽  
Vol 490-495 ◽  
pp. 305-308
Author(s):  
Yu Liang ◽  
Yu Guo ◽  
Chuan Hui Wu ◽  
Yan Gao
Keyword(s):  
Frequency Band ◽  
Filter Banks ◽  
Morlet Wavelet ◽  
Center Frequency ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Filter Bandwidth ◽  
Envelope Analysis ◽  
Band Pass ◽  
Complex Morlet Wavelet

Envelope analysis based on the combination of complex Morlet wavelet and Kurtogram have advantages of automatic calculation of the center frequency and bandwidth of required band-pass filter. However, there are some drawbacks in the traditional algorithm, which include that the filter bandwidth is not -3dB bandwidth and the analysis frequency band covered by the filter-banks are inconsistent at different levels. A new algorithm is introduced in this paper. Through it, both optimal center frequency and bandwidth of band-pass filter in the envelop analysis can be obtained adaptively. Meanwhile, it ensures that the filters in the filter-banks are overlapped at the point of -3dB bandwidth and the consistency of frequency band that the filter-banks covered.

scholarly journals DESAIN BAND PASS FILTER DIGITAL FIR DENGAN METODE KAISER WINDOW UNTUK MEMFILTER SINYAL PINGER 37.5 kHz

Transmisi ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 64
Author(s):  
Kania Sawitri ◽  
Rustamaji Rustamaji
Keyword(s):  
Black Box ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Band Pass ◽  
Kaiser Window

Sinyal pinger dengan frekuensi 37.5 kHz dipancarkan oleh “Beacon black box locator acoustic 37.5 kHz” yang terdapat pada black box, dapat dideteksi menggunakan sensor berupa hydrophone, yang dilengkapi dengan rangkaian filter yang berfungsi untuk memilah sinyal 37.5 kHz dari sinyal-sinyal lain yang tidak diinginkan. Makalah ini membahas tentang desain band pass filter yang sesuai untuk memilah sinyal pinger yang bekerja pada daerah frekuensi 35.5 kHz sampai dengan 39.5 kHz dengan menggunakan metode Kaiser window. Hasil desain filter yang diperoleh secara respons frekuensi bentuknya sudah sesuai dengan yang direncanakan yaitu respons frekuensi band pass filter digital. Band pass filter digital dengan metode Kaiser window yang dipilih adalah untuk β=3 dan panjang N=24.

OBSERVATION AND SIMULATION OF TSUNAMIS INDUCED BY THE 2003 TOKACHI-OKI EARTHQUAKE (M 8.0)

2015 ◽  
Vol 2 (3) ◽  
Author(s):  
Tatsuo Ohmachi ◽  
Shusaku Inoue ◽  
Tetsuji Imai
Keyword(s):  
Rayleigh Wave ◽  
Water Pressure ◽  
Near Field ◽  
Source Region ◽  
Tsunami Source ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Tsunami Simulation ◽  
Sea Bed ◽  
Band Pass

The 2003 Tokachi-oki earthquake (MJ 8.0) occurred off the southeastern coast of Tokachi, Japan, and generated a large tsunami which arrived at Tokachi Harbor at 04:56 with a wave height of 4.3 m. Japan Marine Science and Technology Center (JAMSTEC) recovered records of water pressure and sea-bed acceleration at the bottom of the tsunami source region. These records are first introduced with some findings from Fourier analysis and band-pass filter analysis. Water pressure disturbance lasted for over 30 minutes and the duration was longer than those of accelerations. Predominant periods of the pressure looked like those excited by Rayleigh waves. Next, numerical simulation was conducted using the dynamic tsunami simulation technique able to represent generation and propagation of Rayleigh wave and tsunami, with a satisfactory result showing validity and usefulness of this technique. Keywords: Earthquake, Rayleigh wave, tsunami, near-field

A comparative study on the demodulation capability of a single loop optoelectronic oscillator with and without a dynamic band Pass filter

Optik ◽  
2021 ◽  
Vol 226 ◽  
pp. 165924
Author(s):  
Shantanu Mandal ◽  
Kousik Bishayee ◽  
Arindum Mukherjee ◽  
B N Biswas ◽  
Chandan Kumar Sarkar
Keyword(s):  
Comparative Study ◽  
Band Pass Filter ◽  
Optoelectronic Oscillator ◽  
Pass Filter ◽  
Single Loop ◽  
Band Pass
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