Computer Controlled Teaching Unit for the Study of Digital Signal Processing - TDS

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The Digital Signal Processing is a mathematical manipulation of the data signal to adapt and improve the input signal in some way. Some examples of the digital signal processing are: digital noise reduction, signal filtering etc.The digital signal processing helps to reach a reliable communication links with high data transfer rates and good noise rejection.The Teaching Unit for the Study of Digital Signal Processing “TDS” allows to understand the principles of digital signal processing and
signal analysis.

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03 months of free warranty for consumable and accessories
12 months of free warranty for main equipment
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Data
Acquisition
Board Software for:
- Data Acquisition
- Data Management
- Computer Control Cables and Accessories Cables and Accessories Computer
(not included
in the supply) Unit: TDS. Teaching Unit for the Study of Digital Signal
Processing, including Control Interface

Key features:

● Specialized EDIBON Control Software based on Labview.

● Projector and/or electronic whiteboard compatibility allows the unit to be explained

● and demonstrated to an entire class at one time.

● Capable of doing applied research, training courses, etc.

● Remote operation and control by the user and remote control for EDIBON technicalsupport, are always included.

● Totally safe, utilizing 4 safety systems (Mechanical, Electrical, Electronic & Software).

● Designed and manufactured under several quality standards.

The Teaching Unit for the Study of Digital Signal Processing “TDS” allows to study the principles and more important concepts about digital signal processing, including study and practical exercises, among others, of:

● Continuous waveforms generation.
● Analyze the nature of the signals.
● Working simultaneously with two external signals.
● Signals digitalization.
● Fast Fourier Transform visualization.
● Study of the effects of the digital signal processing.
● Study of the effects of the analog and digital filters.
● To analyze the time and frequency responses, before and after the digital signal processing
● Behaviour of the generated signal or the user’s voice when noise is added to the signal.
● Etc.
● Moreover, it is possible to generate different waveforms by the software and send them to the outputs of the unit.

These signals can be visualized by an external oscilloscope or be listened by the speaker.

The “TDS” unit is based on a modular design structure to allows the user a better understanding of the unit. This unit includesthe following modules:

● Two Function Generators modules: Each function generator contains a waveform selector to choose one of the three different waveform
shapes (sine, triangle and square) and three potentiometers to regulate the frequency, the amplitude and the duty cycle of the signal.

● Noise Generator module: It includes two different noise generators: white noise and pink noise. Each noise generator includes a
potentiometer to regulate the amplitude of the noise signal.

● Microphone and Microphone Pre-Amplifier module: It allows to record and adapt the user´s voice to be analyzed with the software of the unit.

● PC Inputs/Outputs module: It allows to connect the unit with the data acquisition board (to be placed in the computer) and shows the
acquired signals in the unit software. This module contains two BNC connectors for signal inputs and two BNC connectors for signal
outputs.

● Power Amplifier module: It contains a potentiometer to regulate the power amplification of the signal.
● Speaker module: It allows to hear the generated signals of the unit and to study the effects of the noise and digital signal processing in
the studied signal.

All connections between modules are performed through RF coaxial cable assembly.

Exercises and practical possibilities to be done with main items:

1.- Continuous wave form generation, with the possibility of varying
the frequency and amplitude of signals, besides of duty cycle.
2.- Characterization of signals. To analyze the nature of the signals:
sine, square, triangular, etc.
3.- Working simultaneously with two external signals.
4.- Generatingsignals directly by the software and send them to the
unit outputs and then visualizing or listening by the speaker or an
external oscilloscope.
5.- Signal digitalization, permitting the most suitable sampling time,
avoiding “aliasing”.
6.- Digitalization of signals with the possibility of adjusting the
sampling frequency.
7.- Fast Fourier Transforms (Power Spectrum).
8.- Addition, subtraction and multiplication of signals.

9.- Study of “aliasing”.
10.- Study of different noise types:
-White noise.
-1/ƒ noise.
11.- Study and use of filters:
-Possibility of filtration of any signal.
-Reconstruction of signals through the application of filters.

-Digital filters:

Finite Impulse Response (FIR) Filters and Infinite Impulse
Response (IIR) Filters.
-Analogue filters:
Butterworth, Chebyshev, etc.
-Possibility to use Bartlett, Hanning, Hamming, Kaiser, Parzen,
etc. windows for applying on the signal.
Other possibilities to be done with this Unit:
12.- Many students view results simultaneously.
To view all results in real time in the classroom by means of a
projector or an electronic whiteboard.
13.- This unit is totally safe as uses mechanical, electrical and
electronic, and software safety devices.
14.- This unit can be used for doing applied research.
15.- This unit can be used for giving training courses to Industries
even to other Technical Education Institutions.
- Several other exercises can be done and designed by the user.