• A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency, typically a sine wave, that for mathematical...
    12 KB (1,526 words) - 05:08, 28 February 2025
  • Thumbnail for Continuous-wave radar
    about the backscatterer Continuous-wave radar (CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted...
    26 KB (3,814 words) - 22:16, 6 March 2025
  • Thumbnail for Laser
    Laser (redirect from Continuous wave laser)
    time. Such a laser is known as a continuous-wave (CW) laser. Many types of lasers can be made to operate in continuous-wave mode to satisfy such an application...
    126 KB (14,010 words) - 04:25, 12 May 2025
  • active radar transceiver). Semi-active missile systems use bistatic continuous-wave radar. The NATO brevity code for a semi-active radar homing missile...
    12 KB (1,513 words) - 21:26, 17 May 2025
  • Modulated continuous wave (MCW) is Morse code telegraphy transmitted using an audio tone to modulate a carrier wave. Continuous wave (CW), by contrast...
    5 KB (681 words) - 22:59, 13 May 2024
  • Thumbnail for Titanium-sapphire laser
    typically a few meters. Ti:sapphire oscillators are normally pumped with a continuous-wave laser beam from an argon or frequency-doubled Nd:YVO4 laser. Typically...
    13 KB (1,541 words) - 00:49, 11 May 2025
  • Thumbnail for Wireless telegraphy
    telegraphy or radiotelegraphy, commonly called CW (continuous wave), ICW (interrupted continuous wave) transmission, or on-off keying, and designated by...
    41 KB (4,081 words) - 10:48, 12 May 2025
  • Thumbnail for Doppler ultrasonography
    of change of phase). The major advantage of pulsed wave Doppler (PW Doppler) over continuous wave (CW Doppler) is that distance information is obtained...
    20 KB (2,164 words) - 14:16, 21 April 2025
  • Thumbnail for Carbon-dioxide laser
    useful types of laser. Carbon-dioxide lasers are the highest-power continuous-wave lasers that are currently available. They are also quite efficient:...
    16 KB (1,886 words) - 11:21, 6 November 2024
  • resources, the use of damped wave transmission has been prohibited by international regulations since 1934. Continuous wave Damping ratio On-off keying...
    2 KB (174 words) - 16:05, 13 April 2025
  • Thumbnail for Amplitude modulation
    Morse code where it is known as continuous wave (CW) operation, even though the transmission is not strictly "continuous". A more complex form of AM, quadrature...
    36 KB (4,695 words) - 19:35, 2 May 2025
  • Thumbnail for Spark-gap transmitter
    series of brief transient pulses of radio waves called damped waves; they are unable to produce the continuous waves used to carry audio (sound) in modern...
    123 KB (13,130 words) - 00:48, 18 April 2025
  • Thumbnail for Transmitter
    came into use after the turn of the century, which were the first continuous wave transmitters: the arc converter (Poulsen arc) in 1904 and the Alexanderson...
    23 KB (2,485 words) - 06:49, 4 April 2025
  • to transmit Morse code over radio frequencies (referred to as CW (continuous wave) operation), although in principle any digital encoding scheme may...
    3 KB (296 words) - 22:22, 6 July 2024
  • Thumbnail for Functional near-infrared spectroscopy
    three modalities of fNIR spectroscopy: 1. Continuous wave 2. Frequency domain 3. Time-domain Continuous wave (CW) system uses light sources with constant...
    38 KB (4,423 words) - 22:41, 1 January 2025
  • radio receivers such as crystal radio receivers in order to receive continuous wave (CW) radiotelegraphy signals. In the early years of the 20th century...
    3 KB (409 words) - 14:35, 5 February 2025
  • Thumbnail for Frequency comb
    including periodic modulation (in amplitude and/or phase) of a continuous-wave laser, four-wave mixing in nonlinear media, or stabilization of the pulse train...
    35 KB (4,248 words) - 09:48, 28 February 2025
  • Continuity (redirect from Continuous)
    of a dispersed phase evenly intermixed with a continuous phase a continuous wave, an electromagnetic wave of constant amplitude and frequency Continuity...
    3 KB (347 words) - 07:07, 27 August 2024
  • Thumbnail for Doppler radar
    effect. Radars may be: Coherent pulsed (CP), Pulse-Doppler radar, Continuous wave (CW), or Frequency modulation (FM). Doppler allows the use of narrow...
    26 KB (3,269 words) - 01:34, 7 November 2024
  • Pulsed operation of lasers refers to any laser not classified as continuous wave, so that the optical power appears in pulses of some duration at some...
    7 KB (928 words) - 05:58, 1 March 2025
  • Thumbnail for Electroreception and electrogenesis
    The field may be in brief pulses, as in the elephantfishes, or a continuous wave, as in the knifefishes. Some strongly electric fish, such as the electric...
    41 KB (3,592 words) - 08:01, 10 April 2025
  • Thumbnail for MIM-23 Hawk
    greatly improved over Nike through the adoption of new radars and a continuous wave semi-active radar homing guidance system. It entered service with the...
    60 KB (6,915 words) - 05:31, 21 February 2025
  • Thumbnail for Wave radar
    transmitter waveform may be either unmodulated continuous wave, modulated or pulsed. An unmodulated continuous wave radar has no range resolution, but can resolve...
    15 KB (2,029 words) - 20:15, 6 April 2025
  • Thumbnail for Kerr-lens modelocking
    differently from continuous waves. To favor the pulsed mode over continuous-wave, the cavity could be made unstable for continuous-wave operation, but more...
    7 KB (1,061 words) - 21:09, 6 February 2022
  • Thumbnail for Thermal laser epitaxy
    physical vapor deposition technique that utilizes irradiation from continuous-wave lasers to heat sources locally for growing films on a substrate. This...
    14 KB (1,518 words) - 23:38, 1 May 2025
  • machine-to-machine communication is the direct on / off keying of a continuous wave carrier by Morse code symbols, often called amplitude-shift keying...
    8 KB (979 words) - 14:35, 9 January 2025
  • Thumbnail for Pulse-Doppler radar
    target object's velocity. It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of the electronics...
    33 KB (4,372 words) - 14:49, 30 October 2024
  • Thumbnail for Reginald Fessenden
    sine waves" and produced "a continuous train of radiant waves of substantially uniform strength", or, in modern terminology, a continuous-wave (CW) transmitter...
    61 KB (7,262 words) - 17:15, 13 May 2025
  • propagation directions are possible. Modeling the diffraction of a CW (continuous wave), monochromatic (single frequency) field involves the following steps:...
    6 KB (764 words) - 23:43, 14 August 2023
  • Thumbnail for Laser diode
    low threshold current density at 300 K and thereby to demonstrate continuous-wave lasing at room temperature from a diode laser. The first diode lasers...
    53 KB (6,463 words) - 01:40, 11 March 2025