Q4 Signal Spectra and Signal Processing

A ___________ is one that repeats the sequence of values exactly after a fixed length of time.

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

______ 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.

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

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

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

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

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

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