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...'half-band filters''' are widely used for their efficiency in [[Multi-rate digital signal processing|multi-rate]] applications. A half-band filter is a [[low- .../page/n108 91]-93}}</ref><ref>{{cite book|last=Meyer-Baese|first=Uwe|title=Digital Signal Processing with Field Programmable Gate Arrays|url=https://archive.o ...

...tentional slight [[frequency shift (disambiguation)|shift]] of broadcast [[radio frequency]] (RF), to reduce [[RF interference|interference]] with other tra ...ce from other broadcasters. In principle, each broadcaster has a different radio frequency (planned by the public authority) in a common reception area to a ...

...V]] transmitter which uses an intermediate frequency signal in addition to radio frequency signal. ...(AF)]], [[Video signal|video (VF)]] etc.) modulates the [[radio frequency|radio frequency (RF)]] signal. These direct modulation transmitters are relativel ...

...'' of a [[TV transmitter]] is the [[electric power]] applied to [[antenna (radio)|antenna]] system. ...into transmitting the video's higher frequencies and the FM audio carrier. Digital television modulation systems are about 30% more efficient than analogue mo ...

{{Short description|Radio standard}} [[File:ICOM IC-F3162dt.jpg|thumb|150px|IDAS Radio IC-F3162DT]] ...

...> The survey was started 50 years after the first systematic survey of the radio sky was completed by [[Grote Reber]] in April 1943.<ref name="Becker1995" / ...The regions were chosen so that they would also be covered by the [[Sloan Digital Sky Survey]] (SDSS) in 5 optical bands,<ref name="survey" /> and the survey ...

{{Short description|Smart antenna with multi channels digital beamforming}} [[File:Digital antenna array.jpg|thumb|220 px|Digital antenna array (receiver segment)]] ...

...s a mathematical tool for generating frequency-selective [[radio frequency|radio frequency (RF)]] pulses in [[magnetic resonance imaging|magnetic resonance Given a desired magnetization profile, determining the [[Radio frequency|RF]] pulse that produces it is generally nonlinear, due to the no ...

...site and connected to two receivers, which [[Heterodyne|downconvert]] the radio streams into baseband signals (BB H, BB V). ...an ad-hoc cross-polarization cancelling scheme, commonly implemented as a digital stage. The XPIC algorithm attains the correct reconstruction of H by summin ...

In digital signal processing, an [[Finite impulse response|FIR filter]] is a time-cont ...(1981)<ref>Huang, T. S. (1981). Topics in applied physics: Two-Dimensional Digital Signal Processing I (3rd ed., Vol. 42, Topics in Applied Physics). Berlin: ...

...analog signal will become a one-dimensional digital signal. The resulting digital signal can be represented by a discrete sequence. For example, one common s === Digital filters === ...

===Analog versus digital=== ...phase shifts or time delays. Discretization leads to quantization errors. Digital phase shifters require parallel bus control. ...

{{Short description|Problem affecting a class of radio receivers}} ...te frequency'' or ''homodyne'' receivers.}} These translate the received [[radio frequency]] (RF, or [[Passband|pass-band]]) signal directly from the [[Carr ...

[[File:Test-Mire1.jpg|thumb|EBU Colour Bars transmitted from a digital point-to-point satellite link ([[DVB-S]]) operated by [[Globecast]]]] ...estbeelden, Radio Bulletin 1972|website=fmtvdx.eu}}</ref> in Poland, and [[Radio Télévision Gabonaise|Gabon Télévision]]<ref>{{Cite web|url=https://www.yout ...

...t and radio telescope located in a [[radio quiet zone]] at the [[Murchison Radio-astronomy Observatory]] in Western Australia. It is a collaboration between ...nd shield. It is coupled with a radio receiver, with a 100m cable run to a digital spectrometer.<ref name="MIT" /> The instruments operate at {{convert|50|–|1 ...

{{short description|Method of encoding digital data on multiple carrier frequencies}} ...cy-discrete modulation of signals for narrow-band communication channels// Radio electronics and communications systems c/c of Izvestiia- vysshie uchebnye z ...

In [[digital communications]], a '''turbo equalizer''' is a type of [[Receiver (informat ...igital-to-analog converter|D/A converter]]. Typically the signal is then [[Radio frequency upconverter|up-converted]] to pass band frequencies by mixing it ...

..., Tishko, D. N., Titar, V. P., "3D imaging of phase microscopic objects by digital holographic method" In: Duke EH, Aquirre SR. "3D Imaging: Theory, Technolog ...]] distribution, it is possible to reconstruct its physical 3D shape under digital processing the images. ...

...c radiation|electromagnetic]] waves). In order to implement beamforming on digital hardware the received signals need to be discretized. This introduces [[Qua ...sonar]] and low frequency [[Wireless|wireless communications]]. [[Antenna (radio)|Antennas]] regularly make use of [[beamforming]] but it is mostly containe ...

...cite book |last1=Rabideau |first1=D J |title=Ubiquitous MIMO Multifunction Digital Array Radar ... and the Role of Time-Energy Management in Radar |date=2003 ...'virtual antenna array''' is created using only 7 antennas by conducting [[digital signal processing]] on the received signals, thereby obtaining a finer spat ...