• In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with...
    25 KB (3,051 words) - 10:28, 19 June 2024
  • Thumbnail for Frequency modulation
    Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used in...
    31 KB (3,937 words) - 20:27, 7 July 2024
  • Thumbnail for Amplitude modulation
    Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude...
    35 KB (4,576 words) - 04:14, 19 April 2024
  • Thumbnail for Pulse-width modulation
    Pulse-width modulation (PWM), also known as pulse-duration modulation (PDM) or pulse-length modulation (PLM), is any method of representing a signal as...
    29 KB (3,917 words) - 04:44, 31 July 2024
  • Thumbnail for Single-sideband modulation
    communications, single-sideband modulation (SSB) or single-sideband suppressed-carrier modulation (SSB-SC) is a type of modulation used to transmit information...
    33 KB (4,797 words) - 20:53, 30 July 2024
  • Space modulation is a radio amplitude modulation technique used in instrument landing systems (ILS) that incorporates the use of multiple antennas fed...
    2 KB (270 words) - 16:34, 2 October 2019
  • The modulation index (or modulation depth) of a modulation scheme describes by how much the modulated variable of the carrier signal varies around its...
    449 bytes (81 words) - 18:00, 4 August 2020
  • Quadrature amplitude modulation (QAM) is the name of a family of digital modulation methods and a related family of analog modulation methods widely used...
    15 KB (1,924 words) - 23:25, 26 July 2024
  • Thumbnail for Modulation (music)
    In music, modulation is the change from one tonality (tonic, or tonal center) to another. This may or may not be accompanied by a change in key signature...
    28 KB (3,277 words) - 07:45, 9 April 2024
  • Thumbnail for FM broadcasting
    FM broadcasting is a method of radio broadcasting that uses frequency modulation (FM) of the radio broadcast carrier wave. Invented in 1933 by American...
    65 KB (7,744 words) - 16:33, 1 August 2024
  • Look up modulation, modulate, or modulator in Wiktionary, the free dictionary. Modulation is the process of varying one or more properties of a high-frequency...
    2 KB (225 words) - 06:48, 7 April 2024
  • carrier wave. Phase modulation is one of the two principal forms of angle modulation, together with frequency modulation. In phase modulation, the instantaneous...
    6 KB (673 words) - 10:10, 25 June 2024
  • Thumbnail for Pulse-amplitude modulation
    Pulse-amplitude modulation (PAM) is a form of signal modulation where the message information is encoded in the amplitude of a series of signal pulses...
    10 KB (1,094 words) - 17:12, 23 April 2024
  • Pulse-code modulation (PCM) is a method used to digitally represent analog signals. It is the standard form of digital audio in computers, compact discs...
    33 KB (3,992 words) - 16:47, 6 August 2024
  • Thumbnail for Delta-sigma modulation
    Delta-sigma (ΔΣ; or sigma-delta, ΣΔ) modulation is an oversampling method for encoding signals into low bit depth digital signals at a very high sample-frequency...
    58 KB (6,759 words) - 15:06, 29 July 2024
  • Thumbnail for Ring modulation
    In electronics, ring modulation is a signal processing function, an implementation of frequency mixing, in which two signals are combined to yield an output...
    27 KB (3,045 words) - 15:10, 5 July 2024
  • modulation order of a digital communication scheme is determined by the number of the different symbols that can be transmitted using it. Modulation order...
    1 KB (150 words) - 08:49, 5 July 2023
  • Thumbnail for AM broadcasting
    AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions...
    74 KB (9,161 words) - 03:04, 31 July 2024
  • Thumbnail for Delta modulation
    Delta modulation (DM or Δ-modulation) is an analog-to-digital and digital-to-analog signal conversion technique used for transmission of voice information...
    12 KB (1,578 words) - 16:24, 16 February 2024
  • Thumbnail for Metric modulation
    In music, metric modulation is a change in pulse rate (tempo) and/or pulse grouping (subdivision) which is derived from a note value or grouping heard...
    10 KB (1,157 words) - 06:08, 29 February 2024
  • In the fields of nonlinear optics and fluid dynamics, modulational instability or sideband instability is a phenomenon whereby deviations from a periodic...
    13 KB (1,750 words) - 18:28, 12 May 2024
  • Thumbnail for Frequency modulation synthesis
    Frequency modulation synthesis (or FM synthesis) is a form of sound synthesis whereby the frequency of a waveform is changed by modulating its frequency...
    25 KB (3,048 words) - 05:41, 29 May 2024
  • Pulse-position modulation (PPM) is a form of signal modulation in which M message bits are encoded by transmitting a single pulse in one of 2 M {\displaystyle...
    9 KB (1,242 words) - 04:34, 22 May 2024
  • Symbol rate (redirect from Modulation rate)
    In a digitally modulated signal or a line code, symbol rate, modulation rate or baud rate is the number of symbol changes, waveform changes, or signaling...
    19 KB (2,966 words) - 21:40, 17 April 2024
  • The difference in the depth of modulation (DDM) is used by instrument landing systems in conjunction with the associated airborne receiving equipment to...
    2 KB (285 words) - 21:25, 29 November 2023
  • Thumbnail for Line code
    frequency modulation, Miller encoding and delay encoding Non-return-to-zero (NRZ) Non-return-to-zero, inverted (NRZI) Pulse-position modulation (PPM) Return-to-zero...
    16 KB (1,665 words) - 05:56, 1 March 2024
  • 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...
    10 KB (1,450 words) - 23:22, 14 February 2024
  • Differential pulse-code modulation (DPCM) is a signal encoder that uses the baseline of pulse-code modulation (PCM) but adds some functionalities based...
    3 KB (357 words) - 15:17, 7 July 2024
  • Space vector modulation (SVM) is an algorithm for the control of pulse-width modulation (PWM), invented by Gerhard Pfaff, Alois Weschta, and Albert Wick...
    7 KB (539 words) - 03:05, 18 February 2024
  • Thumbnail for RF modulator
    RF modulator (redirect from RF modulation)
    lower image quality than a baseband connection due to losses during the modulation and demodulation process. In professional broadcast settings, more sophisticated...
    10 KB (1,288 words) - 20:06, 22 May 2024