Signal and Noise

Signal and Noise: 

In various fields, such as telecommunications, electronics, information theory, and data analysis, the concepts of signal and noise play a fundamental role. Signals are used to convey information, while noise can interfere with this information transmission. Understanding the relationship between signal and noise is essential for efficient communication and data processing. This article provides a concise overview of signal and noise, their characteristics, and their significance.

**Signals:**

A signal is a pattern or variation in a physical quantity that carries information. These physical quantities can be electrical voltages, electromagnetic waves, sound waves, or any other measurable phenomenon. Signals can be classified into various types based on their nature and representation, such as analog signals, digital signals, continuous signals, and discrete signals.

**Analog Signals:**
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