• Demodulation is the process of extracting the original information-bearing signal from a carrier wave. A demodulator is an electronic circuit (or computer...
    9 KB (1,080 words) - 15:25, 19 January 2025
  • Thumbnail for Pulse-amplitude modulation
    in the amplitude of a pulse train interrupting the carrier frequency. Demodulation is performed by detecting the amplitude level of the carrier at every...
    9 KB (1,019 words) - 03:55, 21 June 2025
  • Thumbnail for Diode
    rectifiers to convert alternating current (AC) power to direct current (DC), demodulation in radio receivers, and can even be used for logic or as temperature...
    64 KB (7,373 words) - 20:54, 27 June 2025
  • information capacity using this technique. This comes at the expense of demodulation complexity. In particular, a DSB signal has zero-crossings at a regular...
    15 KB (1,889 words) - 18:27, 29 May 2025
  • Thumbnail for Radio receiver
    further processing, and finally recovers the desired information through demodulation. Radio receivers are essential components of all systems based on radio...
    41 KB (5,271 words) - 03:04, 23 May 2025
  • Thumbnail for Signal transmission
    typically refer to physical layer protocol duties such as modulation, demodulation, line coding, equalization, error control, bit synchronization and multiplexing...
    2 KB (131 words) - 07:22, 21 September 2024
  • Thumbnail for Delta-sigma modulation
    above the original signal's bandwidth. Subsequent low-pass filtering for demodulation easily removes this high frequency noise and time averages to achieve...
    59 KB (6,863 words) - 13:32, 25 May 2025
  • Thumbnail for TV tuner card
    with demodulation and interface logic. Some lower-end cards lack an onboard processor and, like a Winmodem, rely on the system's CPU for demodulation. There...
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  • theoretical intervals separating any significant instant of modulation (or demodulation) from the significant instant of the start element immediately preceding...
    967 bytes (133 words) - 18:17, 4 September 2024
  • intervals separating any two significant instants of modulation (or demodulation), to the unit interval. These instants are not necessarily consecutive...
    763 bytes (129 words) - 04:48, 20 January 2017
  • demodulator to keep track of a reference wave. A trade-off is that it has more demodulation errors. There are three major classes of digital modulation techniques...
    42 KB (6,226 words) - 06:26, 27 June 2025
  • component is removed, leaving just the original message. For demodulation, the demodulation oscillator's frequency and phase must be exactly the same as...
    7 KB (1,256 words) - 04:09, 16 April 2025
  • modulation. A demodulator (sometimes detector) is a circuit that performs demodulation, the inverse of modulation. A modem (from modulator–demodulator), used...
    24 KB (3,051 words) - 11:37, 29 May 2025
  • Thumbnail for Frequency-shift keying
    implementations of FSK modems exist and are documented in detail. The demodulation of a binary FSK signal can be done using the Goertzel algorithm very...
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  • special case in which the carrier level is reduced below that required for demodulation by a normal receiver. Reduction of the carrier level permits higher power...
    2 KB (240 words) - 09:39, 14 February 2024
  • Thumbnail for Global Positioning System
    after demodulation. This is done by assigning each satellite a unique binary sequence known as a Gold code. The signals are decoded after demodulation using...
    184 KB (19,110 words) - 08:39, 20 June 2025
  • Thumbnail for Composite video
    Composite video, also known as CVBS (composite video baseband signal or color, video, blanking and sync), is an analog video format that combines image...
    16 KB (1,638 words) - 15:53, 11 June 2025
  • Thumbnail for Frequency modulation
    detection for FM broadcasts. In software-defined radio implementations, the demodulation may be carried out by using the Hilbert transform (implemented as a filter)...
    31 KB (4,003 words) - 13:29, 24 May 2025
  • Thumbnail for Carrier recovery
    wave and the receiver's local oscillator for the purpose of coherent demodulation. In the transmitter of a communications carrier system, a carrier wave...
    9 KB (1,271 words) - 13:45, 21 February 2025
  • Thumbnail for Single-sideband modulation
    {s}}(t)\cdot \sin \left(2\pi f_{0}t\right).\end{aligned}}} Coherent demodulation of s ssb ( t ) {\displaystyle s_{\text{ssb}}(t)} to recover s ( t ) {\displaystyle...
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  • Thumbnail for Data communication
    digital modulation method. The passband modulation and corresponding demodulation is carried out by modem equipment. Digital communications, including...
    22 KB (2,519 words) - 21:48, 12 June 2025
  • Thumbnail for GPS signals
    GPS signals are broadcast by Global Positioning System satellites to enable satellite navigation. Using these signals, receivers on or near the Earth's...
    75 KB (10,651 words) - 14:45, 12 June 2025
  • Spread spectrum CSS DSSS FHSS THSS See also Capacity-approaching codes Demodulation Line coding Modem AnM PoM PAM PCM PDM PWM ΔΣM OFDM FDM Multiplexing v...
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  • input frequency. These properties are used for clock synchronization, demodulation, frequency synthesis, clock multipliers, and signal recovery from a noisy...
    52 KB (7,689 words) - 11:29, 5 June 2025
  • Maystrenko, V. A., & Maystrenko, V. V. (2014). The modified method of demodulation N-OFDM signals. 2014 12th International Conference on Actual Problems...
    14 KB (1,842 words) - 04:32, 22 July 2023
  • fold. When VSB filter is used in broadcasting, a problem arises during demodulation. While 0 - 0.75 MHz region has two side bands, the region beyond 1.25 MHz...
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  • Thumbnail for Amplitude modulation
    station, the message signal is extracted from the modulated carrier by demodulation. In general form, a modulation process of a sinusoidal carrier wave may...
    36 KB (4,695 words) - 21:34, 31 May 2025
  • A fax demodulator is a device used to intercept fax messages by listening in on a telephone line or radio signal. A typical (Group III) fax transmission...
    1 KB (154 words) - 01:25, 18 October 2024
  • present and allow synchronizing the phase of the local oscillator in the demodulation circuitry. However, SECAM features continuous subcarriers which don't...
    4 KB (501 words) - 23:08, 13 September 2024
  • Thumbnail for Software-defined radio
    baseband receiver that provided programmable interference cancellation and demodulation for broadband signals, typically with thousands of adaptive filter taps...
    31 KB (4,064 words) - 02:19, 29 June 2025