A Nonautonomous Equation Discovery Method for Time Signal Classification

We present an automatic framework combined space-time signal processing with Time Reversal electromagnetic (EM) inversion for subsurface and through-wall multitarget imaging using electromagnetic waves. This framework is composed of a frequency-wavenumber (FK) filter to suppress direct wave and medium bounce, a FK migration algorithm to automatically estimate the number of targets and identify target regions, which can be used to reduce the computational complexity of the following imaging algorithm, and a EM inversion algorithm using Time Reversal Multiple Signal Classification (TR-MUSIC) to reconstruct hidden objects. The feasibility of the framework is demonstrated with simulated data generated by GPRMAX.

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Real-time signal classification with an acousto-optic triple-product processor cascaded into a volume holographic classifier

Applied Optics ◽

10.1364/ao.35.003937 ◽

1996 ◽

Vol 35 (20) ◽

pp. 3937 ◽

Cited By ~ 3

Author(s):

Charles Garvin ◽

Kelvin Wagner

Keyword(s):

Real Time ◽

Triple Product ◽

Signal Classification ◽

Time Signal

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Time Signal Classification Using Random Convolutional Features

ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) ◽

10.1109/icassp.2019.8682489 ◽

2019 ◽

Cited By ~ 1

Author(s):

Abelino Jimenez ◽

Bhiksha Raj

Keyword(s):

Signal Classification ◽

Time Signal

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THE INFLUENCE OF INQUIRY AND DISCOVERY LEARNING METHOD AND CREATIVITY LEVEL IN WRITING SKILLS DESCRIPTION IN NAUTIC TARUNA AND TECHNIQUE IN SURABAYA SHIPPING POLYTECHNIC

SASTRANESIA Jurnal Program Studi Pendidikan Bahasa dan Sastra Indonesia ◽

10.32682/sastranesia.v8i1.1372 ◽

2020 ◽

Vol 8 (1) ◽

Author(s):

Ni Putu Dian Permata Prasetyaningrum

Keyword(s):

Quantitative Methods ◽

Writing Skills ◽

Discovery Learning ◽

Learning Method ◽

Test Results ◽

Learning Methods ◽

Is Research ◽

Investigation Methods ◽

High Level ◽

Discovery Method

Surabaya Shipping Polytechnic emphasizes on certain areas of expertise that Taruna must possess. This is the basis after graduating from shipping polytechnics, cadets must have expertise and skills. The purpose of this study was to study the effect of inquiry, discovery learning, and creativity levels on the ability to write descriptive essays on nautical and technical cadets at Surabaya Shipping Polytechnic. This type of research is research. This research uses quantitative methods using experiments. The location used in this research is Surabaya Shipping Polytechnic. The subjects in this study were the cadets of the Nautika A, Nautika B, Teknika A, and Teknika B. classes. Based on the results of the research and discussion, the following conclusions are obtained: There are those that can be solved looking for description essays in the cadets. learning discovery method. The test results show better investigation methods than the discovery of learning, There is a difference in the ability to write a description essay about cadets who have a high level of creativity with cadets who have a low level of creativity, the test results show better who have a high level of creativity, there are related with learning methods and descriptions of the ability to write essay descriptions, the test results show learning methods and creativity descriptions of the ability to write essay descriptions.

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ECG Signal Classification using Support Vector Machine and Linear Discriminant Analysis

International Journal of Computer Sciences and Engineering ◽

10.26438/ijcse/v7i5.17201725 ◽

2019 ◽

Vol 7 (5) ◽

pp. 1720-1725

Author(s):

S. Grover ◽

Shailja .

Keyword(s):

Support Vector Machine ◽

Discriminant Analysis ◽

Linear Discriminant Analysis ◽

Signal Classification ◽

Support Vector ◽

Ecg Signal ◽

Linear Discriminant

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Electrical Probing and Surface Imaging of Deep Sub-Micron Integrated Circuits

ISTFA 1999: Conference Proceedings from the 25th International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa1999p0039 ◽

1999 ◽

Author(s):

Kenneth Krieg ◽

Richard Qi ◽

Douglas Thomson ◽

Greg Bridges

Keyword(s):

High Resolution ◽

Integrated Circuits ◽

Real Time ◽

High Speed ◽

Time Signal ◽

Surface Imaging ◽

Atomic Force ◽

Submicron Structures ◽

High Resolution Images ◽

Capacitive Loading

Abstract A contact probing system for surface imaging and real-time signal measurement of deep sub-micron integrated circuits is discussed. The probe fits on a standard probe-station and utilizes a conductive atomic force microscope tip to rapidly measure the surface topography and acquire real-time highfrequency signals from features as small as 0.18 micron. The micromachined probe structure minimizes parasitic coupling and the probe achieves a bandwidth greater than 3 GHz, with a capacitive loading of less than 120 fF. High-resolution images of submicron structures and waveforms acquired from high-speed devices are presented.

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Active control of compressor noise in the machinery room of refrigerators

Noise Control Engineering Journal ◽

10.3397/1/376730 ◽

2019 ◽

Vol 67 (5) ◽

pp. 350-362

Author(s):

J. M. Ku ◽

W. B. Jeong ◽

C. Hong

Keyword(s):

Control System ◽

Active Control ◽

Weighting Function ◽

Reference Signal ◽

Active Noise Control ◽

Dominant Frequency ◽

Time Signal ◽

Frequency Noise ◽

Sound Power ◽

Fxlms Algorithm

The low-frequency noise generated by the vibration of the compressor in the machinery room of refrigerators is considered as annoying sound. Active noise control is used to reduce this noise without any change in the design of the compressor in the machinery room. In configuring the control system, various signals are measured and analyzed to select the reference signal that best represents the compressor noise. As the space inside the machinery room is small, the size of a speaker is limited, and the magnitude of the controller transfer function is designed to be small at low frequencies, the controller uses FIR filter structure converged by the FxLMS algorithm using the pre-measured time signal. To manage the convergence speed for each frequency, the frequency-weighting function is applied to FxLMS algorithm. A series of measurements are performed to design the controller and to evaluate the control performance. After the control, the sound power transmitted by the refrigerator is reduced by 9 dB at the first dominant frequency (408 Hz in this case) and 3 dB at the second dominant frequency (459 Hz here), and the overall sound power decreases by 2.6 dB. Through this study, an active control system for the noise generated by refrigerator compressors is established.

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