GUIDE ON ENGINEERING

8/13/2019 GUIDE ON ENGINEERING

1/5

Journal Paper Summary

A Project

Submitted in Partial Fulfillment of the

Subject Requirements in Signal Spectra and Signal Processing

Submitted By:

Alexia Dale P. Mendoza

Submitted To:

Engr. Arlene C. Grate


2/5

Manchester University Press: An International Journal

The foundations of digital signal processing using Signal Wizard Systems

Patrick Gaydeck

Abstract:

Signal Wizard Systems is a digital signal processing (DSP) research venture

within the School of EEE at the University of Manchester, UK. It specializes in the

development and supply of real-time DSP products for audio signal analysis and

processing. The unique and underpinning philosophy of these products is their ease

of use. The systems require minimal knowledge of DSP theory on the part of the

user and none of the mathematics associated with digital lter design. Filters and

other algorithms can be designed in seconds, downloaded and executed in real time

with just a few mouse clicks. Since 2004 Signal Wizard products have been sold

all over the world for applications was ranging from noise suppression, adaptive

ltering and system modeling to musical instrument research. In particular, their

ease of use ensures that they are ideally suited for teaching simple and more

advanced concepts in DSP both at undergraduate and postgraduate level. For this

purpose, a DSP laboratory teaching package has been developed using the Signal

Wizard range of devices, and has proven an invaluable tool for training our student

cohort in the practical aspects of DSP engineering design and programming.


3/5

I. System or Issue being investigated

This research is mainly about the applicability and usability of Signal

Wizard Systems, a digital signal processing (DSP) research venture within the

School of EEE at the University of Manchester, UK, as a platform for real-time

DSP in the laboratory at Masters level to non-expert students. This system is said

to be easy to use and avoids the requirement of programming.

This system will be tested to be a foundation of Digital Signal Processing

(DSP), DSP is the mathematical manipulation of an information signal to modify

or improve it in some way. It is characterized by the representation of discrete

time, discrete frequency, or other discrete domainsignalsby a sequence of

numbers or symbols and the processing of these signals.

This system is said to require minimal knowledge of DSP theory on the part

of the user and none of the mathematics associated with other design. With this

system, filters and other algorithms can be designed in a short period of time,

downloaded and executed in real-time with few mouse click.

II. Overview of the situation

Digital signal processing evolved from an obscure discipline into a

technology that is pivotal to the infrastructure of society, our personal lives and

scientific endeavors. Our industry is growing fast and application areas are

expanding rapidly, but the one constant and perhaps most significant barrier to

learning is the investment in terms of time and intellectual effort required tounderstand the functions and instruction set of a particular device, construct the

system, and write the algorithms. This cycle requires a long period of time.

Signal Wizard Systems were developed to address these obstacles. They

are complete, integrated devices for real-time and offline DSP without the need for
http://en.wikipedia.org/wiki/Signal_(electronics)http://en.wikipedia.org/wiki/Signal_(electronics)


4/5

specialist, mathematics or theory. They comprise advanced, purpose-designed

hardware modules that implement the DSP operations in real time, and

software that controls the hardware according to the users requirements.

Most important, the systems require minimal knowledge of DSP theory on the part

of the user and none of the mathematics associated with digital filter design.

III. Objectives of the research work

The primary objective of this research work is to be able to prove that signal

wizard system is suitable for school and laboratory and a system that canimplement the digital signal processing in real-time, and software that could

control equipments according to the users preferences. Also, this system wasdeveloped in order to provide both undergraduate and postgraduate school a

system that is suited for as a research tool and teaching aids. On the other hand, itcan also be that this research work aims to provide students with the skills which

industry requires.

IV. Overview of the results

In order to find out whether Signal Wizard System is more suitable thantheoretical approach, they have decided to conduct laboratory activity.

Traditional DSP laboratory experiments often focus on the use of filteringalgorithms to enhance or suppress particular frequencies, using sine waves as

inputs to the DSP hardware or software. With this approach, it has been found outthat this approach rather dry and uninspiring, since it does not reflect how DSPsystems are used in real world applications.

With the use of Signal Wizard System in laboratory activity, students

confirm that the laboratory activity using the system is both an invaluable andindispensable component of the teaching course; indeed, students frequently regardthis as the most useful and enjoy able aspect of the entire DSP program.


5/5

V. Conclusion and recommendations

With the promising outcome and positive feedback from the students, it is

undoubtedly that Signal Wizard Systems provide real-time DSP systems that

operate in the audio frequency bandwidth. They are supplied with intelligent,

intuitive software that greatly facilitates the design procedure. They are

therefore suited not only for research purposes, but also for the teaching of DSP at

all university levels. With this result, it is now possible for students to see the

beauty and the real world application of DSP which will surely encouraged

aspiring students to exert more efforts on studying DSP and other related topics.

Since this system showed a truly splendid result, I would like to recommend

to the researchers if they could make another system that can be used for other

process aside from DSP that shall beneficial for institutions for their research and

teaching purposes. Also, if they could make a system that can show students the

real-world application of other topics that may seem boring and untruthful when

discussed theoretically.

VI. References

Signal Wizard Systemhttp://www.signalwizardsystems.com/

Digital Signal Processinghttp://en.wikipedia.org/wiki/Digital_signal_processing
http://www.signalwizardsystems.com/http://www.signalwizardsystems.com/http://en.wikipedia.org/wiki/Digital_signal_processinghttp://en.wikipedia.org/wiki/Digital_signal_processinghttp://en.wikipedia.org/wiki/Digital_signal_processinghttp://www.signalwizardsystems.com/

GUIDE ON ENGINEERING

Documents

Transcript of GUIDE ON ENGINEERING