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Pulse-density modulation

Pulse-density modulation (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 weights as they would be in pulse-code modulation (PCM); rather, the relative density of the pulses corresponds to the analog signal's amplitude.

Applications, Algorithm & Analog-to-digital conversion

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Overview

Description

Examples

Analog-to-digital conversion

PDM-to-PCM conversion

Digital-to-analog conversion

Relationship to PWM

Relationship to biology

Algorithm

Applications

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Pulse-density modulation

Nodes46
Edges45
Triples7
Avg. degree1.96
Density0.043478
Components1

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Pulse-density modulation

Top relations

related to Algorithm · 5
Pulse-density modulation → Consider, In, Rearranging, The, Z-transform
related to Description · 2
Pulse-density modulation → In, Mathematically

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Important terminology

pdm signal modulation displaystyle delta-sigma quantization analog amplitude error audio bitstream modulator output would rate sample pulse-density 1-bit density represented

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Pulse-density modulationrelated to AlgorithmThe0.60section
Pulse-density modulationrelated to AlgorithmConsider0.60section
Pulse-density modulationrelated to AlgorithmIn0.60section
Pulse-density modulationrelated to AlgorithmZ-transform0.60section
Pulse-density modulationrelated to AlgorithmRearranging0.60section
Pulse-density modulationrelated to DescriptionIn0.60section
Pulse-density modulationrelated to DescriptionMathematically0.60section

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