Lecture 1 DSP Drei
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1
A function of time or space whose values convey information about a physical or mathematical process
Signal
2
A signal where the independent variable (time or space) is continuous
Analog Signal
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A signal where the independent time variable is defined only at specific, usually regular intervals
Discrete-time Signal
4
Signals whose amplitude values are defined for all time t over a given period
Continuous-time Signals
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Signals whose amplitude values are defined only at specific instants of time
Discrete-time Signals
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Signals with amplitudes that can assume any value within a range
Continuous-valued Signals
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Signals with amplitudes that can only have values from a finite set of possible values
Discrete-valued Signals
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Signals that are both continuous-time and continuous-valued
Analog Signals
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Signals that are both discrete-time and discrete-valued
Digital Signals
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Signals whose amplitude can be explicitly defined with a mathematical expression
Deterministic Signals
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Signals with no specific pattern on the occurrence of amplitude values
Random Signals
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The recommended first step when applying multiple transformations to a signal
Amplitude Scaling
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The suggested step to perform immediately after Amplitude Shifting
Time Shifting
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The final step in the suggested sequence for solving signal transformations
Time Reversal
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The transformation that should be performed fourth in the recommended six-step sequence
Time Shifting
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