It refers to the number of waves that pass a fixed point in a given amount of time.

(a)  

(a)   is used to reduce (attenuate)the noise or interference corrupting an information bearing signal.

System in which the output at any instant n depends at most on input sample at same time, but not on past or future samples of input.

(a)  

It is a measure of the strength or intensity of the wave.

(a)  

It involves the relationship between the position of the amplitude crest and troughs of two waveforms.

(a)  

System in which one whose behavior (its response to inputs) does not change with time.

(a)  

Refers to any process that produces an output signal in response to an input signal.

(a)  

Refers to any physical quantity that varies with time, space, temperature, pressure, or any other independent variable.

(a)  

A physical device (or software) that performs an operation on a signal.

(a)  

System whose output response depends on moment of observation as well as moment of input signal application.

(a)  

It describes the frequency content of a signal.

(a)  

When we pass a signal through a system the output is (a)  

The method or set of rules for implementing the system by a program that performs the corresponding mathematical operations.

(a)  

Property of linear operation that means that the output response of a system to the sum of inputs is the same as the sum of the responses to individual inputs.

(a)  

A (a)   system satisfies superposition principle.

Process of multiplying a signal by another signal.

(a)  

Refers to a signals that are generated by multiple sources or multiple sensors.

(a)  

A signal is called (a)   if its value is a function of M independent variables.

Signals that are defined for every value of time and they take on values in the continuous interval (a, b) where a can be negative infinity -∞ and b can be positive infinity +∞.

(a)  

1The smallest value of the time period (T) which justifies the definition of the periodic signal is known

as (a)   .

Signals that are defined only at certain specific values of time.

(a)  

Refers to a signal takes on all possible values on a finite or an infinite range.

(a)  

Property of linear operation that means that if an input is multiplied by a scalar, the system should yield a response that is multiplied by the same scalar.

(a)  

Refers to a signal that takes on values from a finite set of possible values.

(a)  

The process of converting a continuous-valued signal into a discrete-valued signal.

(a)  

Any signal that can be uniquely described by an explicit mathematical expression, a table of data, or a well-defined rule.

(a)  

The reciprocal of the time period (a)   .

Refers to the mathematical description of a signal

(a)  

Signals that either cannot be described to any reasonable degree of accuracy by explicit mathematical formulas.

(a)  

A measurement of the rate of change of the waveform per unit of time.

(a)  

Signals that evolve in time in an unpredictable manner.

(a)  

Signal that all past, present, and future values of the signal are known precisely, without any uncertainty.

(a)  

System that is composed of resistors, capacitors, and inductors.

(a)  

Refers to sound and electromagnetic waves.

(a)  

System that refers to interaction of masses, springs, and dashpots (dampeners).

(a)  

A system is (a)   if its output at any time depends only on present and past inputs but not on future inputs.

System that refers to amplifiers and filter.

(a)  

A mathematical operation where each value in the output is expressed as the sum of values in the input multiplied by a set of weighing coefficients.

(a)  

(a)   is an electronic process in which a continuously variable, or analog, signal is changed into a multilevel digital signal without altering its essential content.

The principle of (a)   says that a system which generates an output y(t) for an input x(t) must produce an output ay(t) for an input ax(t).

A digital technique that involves sampling an analog signal at regular intervals and coding the measured amplitude into a series of binary values, which are transmitted by modulation of a pulsed, or intermittent, carrier.

(a)  

According to the (a)   , a system which gives an output 𝑦1(𝑡) for an input 𝑥1(𝑡) and an output 𝑦2(𝑡) for an input 𝑥2(𝑡) must produce an output [𝑦1(𝑡) + 𝑦2(𝑡)] for an input [𝑥1(𝑡) + 𝑥2(𝑡)].

A system is said to be (a)   if it obeys the principle of homogeneity and principle of superposition.

If a continuous time signal does not have a definite pattern and does not repeat at regular intervals of time is known as continuous

(a)  

(a)   is a process of measuring the amplitude of a continuous-time signal at discrete instants, converting the continuous signal into a discrete signal.

A system is called a (a)   stable system or simply stable system, if and only if every bounded input produces a bounded output.

also known as instantaneous or impulse train sampling.

(a)  

  The sampling rate must be at least 2 times the highest frequency contained in the signal.

(a)  

(a)   is the effect of new frequencies appearing in the sampled signal after reconstruction, that were not present in the original signal.

This is the conversion of a discrete-time continuous valued signal into a discrete-time, discrete-valued (digital) signal. The value of each signal sample is represented by a value selected from a finite set of possible values.

(a)  

The difference between the unquantized sample x(n) and the quantized output xq(n) is called .

(a)  

The simplest form of differential pulse-code modulation (DPCM) where the difference between successive samples is encoded into n-bit data streams.

(a)  

A system whose output or response at any time instant (t) depends upon future values of the input is called the (a)   system.