An analog signal is any continuous signal for which the time-varying feature of the signal is a representation of some other time-varying quantity
Example: For example, in an analog audio signal, the instantaneous voltage of the signal varies continuously with the pressure of the sound waves.
en: frecuencia analoga
Continuous-Time Signals
noun
A continuous-time (CT) signal is a function, s(t), that is defined for all time t contained in some interval on the real line. For historical reasons, CT signals are often called analog signals.
Example: The continuous time signals are quantized and coded in a digital format to be processed by digital circuits and systems.
en: Señales de tiempo continuo
digital signals
noun
a digital signal is a continuous-time physical signal, alternating between a discrete number of waveform, representing a bit stream
Example: Fortunately DIGITAL SIGNALS are inherently more resistant to noise than their analog counterparts, and the rest of this report will demonstrate the methods used to counteract the problem of noise.
en: señales digitales
Discrete-Time Signals
noun
Discrete-time signals are represented mathematically as sequences of numbers. A sequence of numbers x, in which the nth number in the sequence is denoted x[n]. is formally written as x = {x[n]}, −∞
Example: A discrete-time system is defined mathematically as a transformation or operator that
maps an input sequence with values x[n] into an output sequence with values y[n].
en: Señales de tiempo discreto
exponential function
noun
the exponential function is the function where the base is Euler's number and the argument x occurs as an exponent.
Example: The exponential function f(x)=e^x is sometimes called the natural exponential function for distinguishing it from the other exponential functions.
en: funcion exponencial
Signal energy
noun
The terms signal energy and signal power are used to characterize a signal. They are not actually measures of energy and power. The definition of signal energy and power refers to any signal ()tx, including signals that take on complex values.
Example: For some signal energy is infinite and for some signal power is finite but no signal posses the finite power and finite energy
en: energia de señal
signals
noun
In signal processing, a signal is a function that conveys information about a phenomenon. In electronics and telecommunications, it refers to any time varying voltage, current, or electromagnetic wave that carries information.
Example: The amplifier is designed so that its gain is large for accelerometer SIGNALS above a certain threshold level.
en: señales
sinusoidal function
noun
A sine wave or sinusoidal is a mathematical curve that describes a smooth periodic oscillation. A sine wave is a continuous wave. It is named after the function sine, of which it is the graph.
Example: One of the main differences in the graphs of the sine and sinusoidal functions are that you can change the amplitude, period, and other features of the sinusoidal graph by tweaking the constants.
en: función sinusoidal
sistems
noun
A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole.A system, surrounded and influenced by it is environment, is described by it is boundaries, structure and purpose and expressed in it is functioning. Systems are the subjects of study of system theory.
Example: Progress of Civilisation is accelerated by constantly extending systems of individual, moral, social and sanitary quarantine.
en: sistemas
step function
noun
In mathematics, a function on the real numbers is called a step function (or staircase function) if it can be written as a finite linear combination of indicator functions of intervals. Informally speaking, a step function is a piece wise constant function having only finitely many pieces.
Example: Simul8's STEP FUNCTION was used to follow individual customers through the system, the utilization of individual work centers was monitored to check that they were all receiving work items, and a number of extreme value tests were carried out.
