• Adaptive differential pulse-code modulation (ADPCM) is a variant of differential pulse-code modulation (DPCM) that varies the size of the quantization...
    5 KB (637 words) - 17:19, 25 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) - 21:44, 19 May 2024
  • Link adaptation, comprising adaptive coding and modulation (ACM) and others (such as Power Control), is a term used in wireless communications to denote...
    5 KB (599 words) - 00:21, 24 July 2022
  • code. These are not modulation schemes in the conventional sense since they are not channel coding schemes, but should be considered as source coding...
    24 KB (3,014 words) - 00:45, 8 June 2024
  • Thumbnail for Orthogonal frequency-division multiplexing
    robust modulation or error coding to those subcarriers. The term discrete multitone modulation (DMT) denotes OFDM-based communication systems that adapt the...
    87 KB (11,276 words) - 23:18, 10 June 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) - 17:00, 9 June 2024
  • Thumbnail for Audio coding format
    and Advanced Audio Coding (AAC). Linear predictive coding (LPC) Adaptive predictive coding (APC) Code-excited linear prediction (CELP) Algebraic code-excited...
    16 KB (1,552 words) - 08:01, 1 May 2024
  • Thumbnail for Pulse-amplitude modulation
    applications having been largely replaced by pulse-code modulation, and, more recently, by pulse-position modulation. The number of possible pulse amplitudes in...
    10 KB (1,094 words) - 17:12, 23 April 2024
  • 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 (1,941 words) - 15:43, 27 March 2024
  • Thumbnail for DVB-S2
    known as Irregular Repeat-Accumulate codes. VCM (Variable Coding and Modulation) and ACM (Adaptive Coding and Modulation) modes, which allow optimizing bandwidth...
    18 KB (1,259 words) - 08:16, 2 March 2024