nonlinear distortion


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Noun1.nonlinear distortion - distortion that occurs when the output signal does not have a linear relation to the input signal
distortion - a change (usually undesired) in the waveform of an acoustic or analog electrical signal; the difference between two measurements of a signal (as between the input and output signal); "heavy metal guitar players use vacuum tube amplifiers to produce extreme distortion"
References in periodicals archive ?
The standard 32 kb/s ADPCM algorithm provides a good performance for speech signals, and can transmit voiceband data signals up to 4.8 kb/s since it was recognised at study group XVIII meeting (CCITT Recommendation G.721, 1984) that the 32 kb/s ADPCM adds severe nonlinear distortion to the voiceband data signal at high data rate.
However, one major drawback of the OFDM signals is the high peak-to-average power ratio (PAPR), which leads to a severe performance loss because of the nonlinear distortion caused by a LED emitter [6].
The dynamic equation which describes the nonlinear distortion of magnetoacoustic wave and its nonlinear phenomena follow by means of application of corresponding projector at system (4).
The nonlinear distortion can be approximated as a phase shift of the transmission signal.
In the study of the phase noise at the transmitter [[phi].sup.txn] and the nonlinear distortion signal of PA is [d.sup.tx], [y.sup.tx] is the PA output transmitted signal.
Nonlinear distortion is thus minimised from the very beginning.
Serious nonlinear distortion components appear at the output port after STWT begin to work on saturation state.
Even if transmitters have the same modes and production batches, the actual parameters of devices are different, such as oscillator frequency deviation, phase noise, modulation error, nonlinear distortion of power amplifier, and filter distortion.
As the wave travels through the bubbly liquid, the strong attenuation due to the bubbles reduces the amplitude and the signal undergoes a strong nonlinear distortion that is made evident by the asymmetry between compression and rarefaction amplitudes and by the creation of higher harmonic components.
Based on the extension of the Bussgang theorem [20], a complex or real Gaussian inputs can be written as the sum of a useful attenuated input replica and an uncorrelated nonlinear distortion noise.

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