A modified structure for multi-resolution analysis of frequency domain self-tuning random vibration control

1996 ◽  
Author(s):  
A.M. Karshenas
Keyword(s):  
Vibration Control ◽  
Frequency Domain ◽  
Random Vibration ◽  
Multi Resolution Analysis ◽  
Resolution Analysis ◽  
Self Tuning

Multi-Resolution Processing for Random Vibration Control

1997 ◽  
Vol 40 (1) ◽  
pp. 35-40
Author(s):  
A. Karshenas ◽  
M. Dunnigan ◽  
B. Williams ◽  
J. Goodfollow
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Vibration Control ◽  
Frequency Domain ◽  
Random Vibration ◽  
Digital Signal ◽  
Vibration Test ◽  
Octave Band ◽  
Self Tuning

A typical vibration test for a specimen is to subject it to a specific spectrum of random vibration. This paper proposes multi-resolution processing using a "frequency domain self-tuning" algorithm for application to random vibration control. MATLAB programs simulate two-octave-band and three-octave-band processing for random vibration control. A PC-based, digital signal processing (DSP) board was used to implement two-octave processing. The simulation and practical results are presented.

Real-time fault analysis of transmission lines using wavelet multi-resolution analysis based frequency-domain approach

2016 ◽  
Vol 10 (7) ◽  
pp. 693-703 ◽  
Author(s):  
Sundaravaradan Navalpakkam Ananthan ◽  
Rounak Meyur ◽  
Maddikara Jaya Bharata Reddy ◽  
Rajaraman Padmanabhan ◽  
Balimidi Mallikarjuna ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Real Time ◽  
Transmission Lines ◽  
Fault Analysis ◽  
Multi Resolution Analysis ◽  
Resolution Analysis ◽  
Frequency Domain Approach

scholarly journals On Recovery Guarantees for One-Bit Compressed Sensing on Manifolds

2021 ◽  
Vol 65 (4) ◽  
pp. 953-998
Author(s):  
Mark A. Iwen ◽  
Felix Krahmer ◽  
Sara Krause-Solberg ◽  
Johannes Maly
Keyword(s):  
Compressed Sensing ◽  
Numerical Experiments ◽  
Optimal Scaling ◽  
Intrinsic Dimension ◽  
Recovery Method ◽  
Multi Resolution Analysis ◽  
Resolution Analysis

AbstractThis paper studies the problem of recovering a signal from one-bit compressed sensing measurements under a manifold model; that is, assuming that the signal lies on or near a manifold of low intrinsic dimension. We provide a convex recovery method based on the Geometric Multi-Resolution Analysis and prove recovery guarantees with a near-optimal scaling in the intrinsic manifold dimension. Our method is the first tractable algorithm with such guarantees for this setting. The results are complemented by numerical experiments confirming the validity of our approach.

scholarly journals Simulation of response spectrum-compatible ground motions using wavelet-based multi-resolution analysis

2021 ◽  
pp. 002029402110130
Author(s):  
Guan Chen ◽  
Zhiren Zhu ◽  
Jun Hu
Keyword(s):  
Ground Motion ◽  
Response Spectrum ◽  
Ground Motions ◽  
Power Spectra ◽  
Simulation Method ◽  
Eurocode 8 ◽  
Effective Response ◽  
Multi Resolution Analysis ◽  
Resolution Analysis ◽  
Simulated Ground Motions

This study proposed a simple and effective response spectrum-compatible ground motions simulation method to mitigate the scarcity of ground motions on seismic hazard analysis base on wavelet-based multi-resolution analysis. The feasibility of the proposed method is illustrated with two recorded ground motions in El Mayor-Cucapah earthquake. The results show that the proposed method enriches the ground motions exponentially. The simulated ground motions agree well with the attenuation characteristics of seismic ground motion without modulating process. Moreover, the pseudo-acceleration response spectrum error between the recorded ground motion and the average of the simulated ground motions is 5.2%, which fulfills the requirement prescribed in Eurocode 8 for artificially simulated ground motions. Besides, the cumulative power spectra between the simulated and recorded ground motions agree well on both high- and low-frequency regions. Therefore, the proposed method offers a feasible alternative in enriching response spectrum-compatible ground motions, especially on the regions with insufficient ground motions.

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