Ali Gamal Hafez

According to our database, Ali Gamal Hafez authored at least 7 papers between 2009 and 2013.

Collaborative distances:

• Dijkstra number of six.
• Erdős number of five.

2013

Geomagnetic Sudden Commencement Automatic Detection via MODWT.

Ali Gamal Hafez, Essam Ghamry

IEEE Trans. Geosci. Remote. Sens., 2013

Seismic noise study for accurate P-wave arrival detection via MODWT.

Ali Gamal Hafez, Mostafa Rabie, Tohru Kohda

Comput. Geosci., 2013

Un-decimated discrete wavelet transform based algorithm for extraction of geomagnetic storm sudden commencement onset of high resolution records.

Ali Gamal Hafez, Essam Ghamry, Hideki Yayama, Kiyohumi Yumoto

Comput. Geosci., 2013

Detection of precursory signals in front of impulsive P-waves.

Ali Gamal Hafez, Mostafa Rabie, Tohru Kohda

Digit. Signal Process., 2013

2012

A Wavelet Spectral Analysis Technique for Automatic Detection of Geomagnetic Sudden Commencements.

Ali Gamal Hafez, Essam Ghamry, Hideki Yayama, Kiyohumi Yumoto

IEEE Trans. Geosci. Remote. Sens., 2012

2010

Clear P-wave arrival of weak events and automatic onset determination using wavelet filter banks.

Ali Gamal Hafez, Muhammad Tahir Abbas Khan, Tohru Kohda

Digit. Signal Process., 2010

2009

Earthquake onset detection using spectro-ratio on multi-threshold time-frequency sub-band.

Ali Gamal Hafez, Tahir Abbas Khan, Tohru Kohda

Digit. Signal Process., 2009