narrowband

(redirected from Narrow-band)
Also found in: Dictionary, Encyclopedia.

nar·row·band

(na'rō-band),
A limited band of sound frequencies, as opposed to the wideband of frequencies also known as white noise; narrowband noise is used to mask hearing in the nontest ear in hearing measurement.

nar·row·band

(nar'rō-band')
A limited band of sound frequencies, as opposed to the wideband of frequencies also known as white noise; used to mask hearing in the nontest ear in hearing measurement.

narrowband

Consisting of a limited number of wavelengths or frequencies. Narrowband ultraviolet B radiation, for example, consists of radiation measuring approximately 311 nm; broadband ultraviolet light, by contrast, has a range of wavelengths between 295 and 320 nm.
Mentioned in ?
References in periodicals archive ?
Evaluation of narrow-band UVB phototherapy in 150 patients with vitiligo.
With the purpose of separating the information of spectral subbands, the filter bank methods (FBM) decompose bandwidth-limited signals into a set of narrow-band components.
Narrow-band UVB therapy was administered twice weekly to group B, with at least 1 day between each treatment.
A case of progressive macular hypomelanosis treated with narrow-band UVB.
Brief education on microvascular pattern identification by magnifying narrow-band imaging endoscopy and pit pattern identification by magnifying chromoendoscopy can significantly improve trainees' abilityto diagnose the invasion depth of colorectal tumors.
"In particular, we can offer no argument that an advanced, intelligent civilization necessarily produces narrow-band radio emission, either intentional or otherwise," the SETI astronomers stated.
An alternative technique such as narrow-band imaging for "optical staining" would be desirable, especially because it is a simpler technique and has no known complications.
A triple-band bandstop filter is presented in [13] by adopting the straight and bent quarter-wavelength resonators to suppress the narrow-band interferences in ultra-wideband (UWB) applications.
This approach is facilitated by the use of new colonoscopy technology that incorporates narrow-band imaging, which allows for better characterization of the smallest polyps and could conceivably avert further histologic assessment.
* AXSEM's AX5042 single-chip, long-range, narrow-band RF transceiver that consists of an integrated RF front-end with modulator and demodulator, as well as a flexible communication controller.
Phototherapy using narrow-band ultraviolet B (UVB), covering the spectrum from 305 to 311 nm, began to replace PUVA phototherapy for treatment of vitiligo.