• Thumbnail for Phase noise
    In signal processing, phase noise is the frequency-domain representation of random fluctuations in the phase of a waveform, corresponding to time-domain...
    14 KB (1,790 words) - 09:49, 18 April 2025
  • Oscillators produce various levels of phase noise, or variations from perfect periodicity. Viewed as an additive noise, phase noise increases at frequencies close...
    6 KB (795 words) - 08:07, 18 February 2024
  • A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is fixed relative to the phase of an input...
    52 KB (7,681 words) - 16:09, 24 May 2025
  • Thumbnail for Active noise control
    compression and rarefaction. A noise-cancellation speaker emits a sound wave with the same amplitude but with an inverted phase (also known as antiphase) relative...
    10 KB (1,335 words) - 15:57, 16 February 2025
  • Thumbnail for Direct digital synthesis
    counterpart, the phase-locked loop (PLL), including much better frequency agility, improved phase noise, and precise control of the output phase across frequency...
    8 KB (872 words) - 04:34, 9 May 2024
  • sitting on a flat noise-floor. Slight random 'jitters' in the signal's timing will mean that the peak is sitting on 'skirts' of phase noise at frequencies...
    14 KB (1,844 words) - 20:50, 16 August 2024
  • Thumbnail for Allan variance
    found that they did not have a phase noise consisting only of white noise, but also of flicker frequency noise. These noise forms become a challenge for...
    64 KB (9,353 words) - 08:57, 24 May 2025
  • Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort...
    41 KB (4,522 words) - 18:04, 23 May 2025
  • Thumbnail for Modified Allan variance
    relative to Allan variance is its ability to separate white phase noise from flicker phase noise. The modified Allan deviation (MDEV), also known as mod σy(τ)...
    5 KB (584 words) - 12:56, 24 February 2025
  • filter Digital circuits - counters, phase measurement RFI/EMI, shielding, grounding Statistics of noise and phase noise in electronic components and circuits...
    9 KB (1,239 words) - 00:24, 13 May 2025
  • Thumbnail for Voltage-controlled oscillator
    signal affect the phase noise; high noise or high tuning gain imply more phase noise. Other important elements that determine the phase noise are sources of...
    17 KB (2,011 words) - 09:01, 16 January 2025
  • Thumbnail for Crystal oscillator
    (2013-08-30). "How Low Can They Go?: Oscillator Phase Noise Model, Theoretical, Experimental Validation, and Phase Noise Measurements". IEEE Microwave Magazine...
    90 KB (9,538 words) - 18:39, 24 May 2025
  • decaying oscillations Burst noise, powerful but only during short intervals Phase noise, random time shifts in a signal Noise may arise in signals of interest...
    7 KB (935 words) - 15:35, 30 May 2025
  • how far the points are from the ideal locations. Noise, distortion, spurious signals, and phase noise all degrade EVM, and therefore EVM provides a comprehensive...
    6 KB (743 words) - 03:05, 15 March 2024
  • of a signal to a carrier signal, expressed in decibels. For example, phase noise is expressed in dBc/Hz at a given frequency offset from the carrier....
    2 KB (406 words) - 01:41, 7 February 2024
  • conjugation. In the absence of noise, the phase of this is ϕ k − ϕ k − 1 {\displaystyle \phi _{k}-\phi _{k-1}} , the phase-shift between the two received...
    42 KB (6,226 words) - 13:36, 27 January 2025
  • Quantum noise is noise arising from the indeterminate state of matter in accordance with fundamental principles of quantum mechanics, specifically the...
    25 KB (3,906 words) - 18:05, 27 May 2025
  • Thumbnail for Noise pollution
    Noise pollution, or sound pollution, is the propagation of noise or sound with potential harmful effects on humans and animals. The source of outdoor noise...
    100 KB (11,238 words) - 09:20, 29 May 2025
  • Noise figure (NF) and noise factor (F) are figures of merit that indicate degradation of the signal-to-noise ratio (SNR) that is caused by components in...
    17 KB (2,336 words) - 13:29, 1 February 2025
  • expression that describes an oscillator's phase noise spectrum. Leeson's expression for single-sideband (SSB) phase noise in dBc/Hz (decibels relative to output...
    6 KB (765 words) - 22:41, 11 March 2025
  • wall Noise weighting Noisy black Noisy white Peak signal-to-noise ratio Perlin noise Phase noise Photon noise Pink noise Pseudonoise=pseudorandom noise Quantization...
    4 KB (342 words) - 12:14, 30 October 2023
  • Thumbnail for Low-noise block downconverter
    called a low-noise block, low-noise converter (LNC), or even low-noise downconverter (LND), the device is sometimes inaccurately called a low-noise amplifier...
    35 KB (4,176 words) - 03:46, 13 March 2025
  • Thumbnail for Constellation diagram
    a communication channel, due to electronic noise or distortion added to the signal, the amplitude and phase received by the demodulator may differ from...
    7 KB (983 words) - 05:56, 6 March 2025
  • systems remains debated. Audio system measurements Phase noise Arthur C Ludwig Sr. (1997). "Audibility of Phase Distortion". Retrieved 15 February 2016. Lipshitz...
    2 KB (189 words) - 17:30, 21 September 2024
  • Thumbnail for Soundproofing
    Soundproofing (category Noise reduction)
    active noise control, a microphone is used to pick up the sound that is then analyzed by a computer; then, sound waves with opposite polarity (180° phase at...
    22 KB (2,523 words) - 19:02, 19 May 2025
  • Thumbnail for Noise barrier
    A noise barrier (also called a soundwall, noise wall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect inhabitants...
    12 KB (1,433 words) - 17:00, 22 April 2025
  • Thumbnail for Oscillation
    computing periodicity in unevenly spaced data Oscillator phase noise Periodic function Phase noise Quasiperiodicity Reciprocating motion Resonator Rhythm...
    21 KB (3,045 words) - 07:58, 31 May 2025
  • Thumbnail for Health effects from noise
    Noise health effects are the physical and psychological health consequences of regular exposure to consistent elevated sound levels. Noise from traffic...
    42 KB (4,696 words) - 13:54, 24 February 2025
  • excellent (low) phase noise. A simple, but incomplete, analysis of the effect may be found by observing that any variation in LO frequency or phase during a...
    51 KB (7,000 words) - 03:18, 16 April 2025
  • Thumbnail for Pink noise
    Pink noise 10 seconds of pink noise, normalized to −1 dBFS peak amplitude Problems playing this file? See media help. Pink noise, 1⁄f noise, fractional...
    55 KB (6,607 words) - 18:52, 23 May 2025