DSP[1] Flashcards
The process whereby real world phenomena can be translated into digital data for analysis, manipulation, and synthesis.
Digital Signal Processing
This done by sampling with signals with an instrument like camera, microphone, which is turn i generates a sequence of numbers that represent cointinuous variables in domain like time, space, and frequency.
DSP
Application of DSP
- Audio
- Graphics
- Data Compression
- Machine Learning
- Quantum Computing
- Finance
- Seismology
- Meteorology
In electrical engineering, the fundamental
quantity of representing some information is
called
Signal
is a
function that conveys some information. In
fact any quantity measurable through time
over space or any higher dimension can be
taken as a signal.
Signal
It is a continuous signal. These signals are
defined over continuous independent
variables.
Analog signal
an example of analog signals.
Human voice
The word digital stands for discrete values
and hence it means that they use specific
values to represent any information.
Digital signal
Digital signals are
denoted by
Square waves
Whenever a key is pressed from the keyboard,
the appropriate electrical signal is sent to
keyboard controller containing the ASCII value
that particular key.
Computer keyboard
is a defined by the type of input and output it
deals with.
System
Two conversion of digital to analog signal
- Sampling
- Quantization
It can be defined as take samples, and it is done on an independent variable.
Sampling
It can be defined as diviting into quanta(partitions), and it is done on an dependent variable
Quantization
The type of systems whose input and output
both are continuous signals or analog signals
are called
Continuous systems
