ABSTRACT
Matlab software is launched in 1984 MathWork mathematical software. The first
development philosophy is to provide a complete matrix operations command.With
the evolution of numerical computing needs,
matlab has become a variety of system
simulation, digital signal processing and visualization of the standard language.It is
the international one of the most popular software.
With a wide range of systems
analysis to solve problems,it is one of many scientists and engineers working platform
of choice for designers and master the use of matlab, and is helpful to students to
broaden employment options for the surface.
Digital signal processing is a widely used but many disciplines involved in many
areas of emerging disciplines. It is the sequence of numbers or symbols, or special
handling by
computer equipment, processed using digital means to achieve more in
line with the requirements of the signal form of the people.
It can be analog in nature,
continuous signal sampling, quantization is converted to digital signals, then the filter,
transform, valuation, enhancement, compression, and recognition processing.
With
the computer technology and the rapid development of large scale integrated circuit,
digital signal processing technology has also been rapid development and wide
application.
Matlab in this paper is to introduce the use of digital signal processing,
including
the use of the discrete time representation and matlab and systems. A typical signal
generation and signal operation Functions, in digital signal processing theory and
signal processing toolbox of matlab based on the preparation of Functions, Functions
include: the signal of the addition, multiplication, shift and parity Convolution. matlab
in the Z transform, Fourier transform of. Achieved by pole residues decomposition
matlab, Z inverse transform, find the digital filter frequency response, pole-zero filter
to draw maps, fast Fourier transform and inverse transform, chirp Z transform,
discrete cosine transform and inverse transform is And so on. IIR digital filter design
based on matlab. FIR filter design based on matlab.it is to test equipment onto a
computer screen, due to time constraints, this is just a simple design with matlab
platform, the platform can be some simple digital signal processing experiments.
Keywords: matlab, digital signal processing, new
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