width-modulated carrier
21DVB-T — List of digital television broadcast standards DVB standards (Europe) DVB S (satellite) DVB S2 DVB T (terrestrial) DVB T2 DVB C …
22Types of radio emissions — The International Telecommunication Union uses an internationally agreed system for classifying radio frequency signals. Each type of radio emission is classified according to its bandwidth, method of modulation, nature of the modulating signal,… …
23Tunable diode laser absorption spectroscopy — (TDLAS) is a technique for measuring the concentration of certain species such as methane, water vapor and many more, in a gaseous mixture using tunable diode lasers and laser absorption spectrometry. The advantage of TDLAS over other techniques… …
24Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) …
25arts, East Asian — Introduction music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature. Some studies of East Asia… …
26Noise-Immune Cavity-Enhanced Optical-Heterodyne Molecular Spectroscopy — (NICE OHMS) is an ultra sensitive laser based absorption technique that utilizes laser light to assess the concentration or the amount of a species in gas phase by absorption spectrometry (AS). Principles The NICE OHMS technique combines in a… …
27Modelocking — Mode locking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10 12s) or femtoseconds (10 15s).The basis of the technique is to induce a fixed phase… …
28facsimile — /fak sim euh lee/, n., v., facsimiled, facsimileing, adj. n. 1. an exact copy, as of a book, painting, or manuscript. 2. Also called fax. Telecommunications. a. a method or device for transmitting documents, drawings, photographs, or the like, by …
29fax — /faks/, Telecommunications. n. 1. facsimile (def. 2). adj. 2. facsimile (def. 5). v.t. 3. to transmit a facsimile of (printed matter, photographs, or the like) electronically: Fax the information to all our branch offices. [by shortening and resp …
30Direct-sequence spread spectrum — Passband modulation v · d · e Analog modulation AM · …
