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Analogy is a comparison or correspondence between two things (or two groups of things) because of a third element that they are considered to share.. In logic, it is an inference or an argument from one particular to another particular, as opposed to deduction, induction, and abduction.
Analogue electronics ( American English: analog electronics) are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two levels. The term analogue describes the proportional relationship between a signal and a voltage or current that represents the signal.
An analog signal is subject to electronic noise and distortion introduced by communication channels, recording and signal processing operations, which can progressively degrade the signal-to-noise ratio (SNR). As the signal is transmitted, copied, or processed, the unavoidable noise introduced in the signal path will accumulate as a generation ...
e. In electronics and signal processing, a Bessel filter is a type of analog linear filter with a maximally flat group delay (i.e., maximally linear phase response ), which preserves the wave shape of filtered signals in the passband. [1] Bessel filters are often used in audio crossover systems. The filter's name is a reference to German ...
Many models offer various types of analog modulation, either as standard equipment or as an optional capability to the base unit. This could include AM, FM, ΦM (phase modulation) and pulse modulation. A common feature is an attenuator to vary the signal’s output power. Depending on the manufacturer and model, output powers can range from − ...
Analog (program), a computer program that analyzes log files from web servers. Analogical models, a method of representing a phenomenon of the world by another, more understandable or analyzable system. Functional analog (chemistry), a compound with similar properties. Structural analog, a compound with an altered chemical structure.
Signal conditioning. In electronics and signal processing, signal conditioning is the manipulation of an analog signal in such a way that it meets the requirements of the next stage for further processing. In an analog-to-digital converter (ADC) application, signal conditioning includes voltage or current limiting and anti-aliasing filtering .
Pulse-density modulation, or PDM, is a form of modulation used to represent an analog signal with a binary signal.In a PDM signal, specific amplitude values are not encoded into codewords of pulses of different weight as they would be in pulse-code modulation (PCM); rather, the relative density of the pulses corresponds to the analog signal's amplitude.