pulse code modulation
61central de modulation par impulsions codées — impulsinio kodinio moduliavimo telefono stotis statusas T sritis radioelektronika atitikmenys: angl. pulse code modulation telephone exchange vok. Puls Kode Modulation Vermittlungsstelle, f rus. телефонная станция с импульсно кодовой модуляцией,… …
62Code division multiple access — This article is about a channel access method. For the mobile phone technology referred to as CDMA, see IS 95 and CDMA2000. Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM  …
63Pulse — The rhythmic dilation of an artery resulting from beating of the heart. It is often measured by feeling the arteries of the wrist. * * * Rhythmic dilation of an artery, produced by the increased volume of blood thrown into the vessel by the… …
64Quadrature amplitude modulation — (QAM) (Pronounced IPA|kwa:m) is a modulation scheme which conveys data by changing ( modulating ) the amplitude of two carrier waves. These two waves, usually sinusoids, are out of phase with each other by 90° and are thus called quadrature… …
65Pulsdauer-Modulation — PWM Signal mit einem Tastverhältnis t1 / T = 0,25 = 25 % Die Pulsweitenmodulation (PWM) (auch Unterschwingungsverfahren) ist eine Modulationsart, bei der eine technische Größe (z. B. elektrischer Strom) zwischen zwei Werten wechselt. Dabei wird… …
66Modified Frequency Modulation — This article is about Modified Frequency Modulation. For other uses of MFM, see the MFM (disambiguation). Modified Frequency Modulation, commonly MFM, is a line coding scheme used to encode the actual data bits on most floppy disk formats,… …
67Femtosecond pulse shaping — In optics, Femtosecond pulse shaping refers to various techniques to modify the temporal profile of an ultrashort pulse from a laser. Pulse shaping can be used to shorten/elongate the duration of optical pulse, or to generate more complex… …
68Brevity code — Contents 1 American/NATO codes 1.1 A 1.2 B 1.3 C …
69Barker code — A Barker code is a sequence of N values of +1 and −1,:a j for j = 1, cdotcdotcdot, Nsuch that:|sum {j=1}^{N v} a j a {j+v}| le 1,for all 1 le v < N.Here is a table of all known Barker codes, where negations and reversals of the codes have been… …
70Channel code — In digital communications, a channel code is a broadly used term mostly referring to the forward error correction code and bit interleaving in communication and storage where the communication media or storage media is viewed as a channel. The… …
