A computer program "SigProce" (Signal Processing) has been designed to
evaluate seismic response in sites and buildings by multiple techniques, such as
the H/V method and the reference site method, in simple, easy and efficient
manner. The program
has been written using Fortran language for Windows
XP with Microsoft Developer Studio. It allows applying many methods of signal
processing. So, programming these methods provides us a useful tool in
application and education domains. The processing methods which can be
applied are: calibration, shifting and trending correction, decimation, delete an
interval, data windowing, integration and differentiation, signal rotation,
filtering, convolution/deconvolution, correlation, and smoothing. Furthermore,
the program has many graphical outputs for signals, spectra, spectral ratio,
particle ground motion, polarigram and others.
There has been a clear and rapid development in signal processing systems,
this development comes as a result of the availability of modern techniques
in electronic systems and also as a result of achieving mathematical
algorithms which were effec
tive and perfect for signal processing.
One of the most important application in signal processing is the digital
image processing techniques. Sampling process is regarded as one of the
basic and important operations in signal processing, from which we obtain
samples that can represent the original image in perfect way.
We present in this essay an affective algorithm which helps to arrange onedimensional
samples from two- dimensional samples image. This enables to
obtain a series of samples which has an ability of representing images with
concern of their general structure. Also the neighborhood correlation of
image points is respected, in addition to carrying out the subsequent
treatments with less mathematical cost.
