Zero crossing refers to the point where a signal waveform crosses the horizontal axis, changing its sign from positive to negative or vice versa. It is a critical concept in signal processing and control systems, often used for detecting signal frequency, phase, and for implementing zero-crossing detectors in various applications.

Zero Crossing

Zero crossing

signal waveform

The horizontal axis, often referred to as the x-axis in a coordinate system, represents the independent variable or the basis upon which values are plotted. It is crucial in data visualization, allowing for the clear representation and comparison of data points across a defined spectrum or time series.

horizontal axis

changing its sign

positive to negative

Negative to positive

Signal processing involves the analysis, manipulation, and synthesis of signals such as sound, images, and scientific measurements to improve transmission, storage, and quality. It is fundamental in various applications, including telecommunications, audio engineering, and biomedical engineering, where it enhances signal clarity and extracts useful information.

signal processing

Control systems are frameworks that manage, command, direct, or regulate the behavior of other devices or systems using control loops. They are essential in engineering and technology for ensuring desired outputs in dynamic environments by automatically adjusting inputs based on feedback.

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