Contents
Why nonlinear distortion is called harmonic distortion?
With non-linear distortion the application of a sinusoidal input voltage results in a periodic output waveform that is non-sinusoidal. Fourier analysis shows that spurious harmonics are present, the result being known as harmonic distortion. Equation 10.24 gives the total harmonic distortion.
What is meant by intermodulation distortion in satellite communication?
Intermodulation distortion occurs when many carriers access a non-linear satellite transponder. In this paper, the satellite C/I ratio is investigated when the transponder is accessed by many small carriers in the presence of a dominant carrier. A lower bound C/I ratio and an optimum input backoff point are deduced.
What are the relationship between intermods and harmonics?
This section will help the user understand fundamental relationships between intermods, harmonics, and intercept points. When ‘Calculate Intermods’ and ‘Calculate Harmonics’ are enabled intermods and harmonics will always be created by nonlinear behavioral models.
How does intermodulation distortion affect human hearing?
The thing is that human hearing is great at grouping harmonic overtones together, perceptually combining several frequency components into one sound. As we’ll see in the following, intermodulation distortion can create inharmonic tones that are not perceived as belonging to the original sound.
Which is the most critical intermodulation distortion product?
The most critical intermodulation distortion product is the Third Order Intermodulation (TOI) product. It is generated when two signals are applied to a nonlinear device. The TOI products are usually within or close to the use-band, i.e. it can hit a neighboring channel in a communication system. This application note gives an overview which
How does nonlinear distortion affect a cymbal sound?
Strongly inharmonic sounds such as cymbals have a rather chaotic set of partials themselves, thus nonlinear distortion leads to chaotic noisy intermodulation artifacts, especially at much lower frequencies. Thus, cymbals quickly get a gritty and grainy texture when distorted.