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Fdd023
FDD may refer to: Politics * CNDD-FDD, a political party in Burundi *Forum for Democracy and Development, a political party in Zambia * KAZE-FDD, a political party in Burundi Science and technology *Floppy disk drive * Frequency-division duplex, a telecommunications duplex indexing method *Frequency domain decomposition, a system identification technique *LTE-FDD, a 4G telecommunications technology and standard * Timex FDD, a nearly complete computer by Timex *UMTS-FDD, an air interface standard in 3G mobile telecommunications networks *Fault detection and diagnostics, by Automated Logic Corporation Other uses * Feature-driven development, a project management approach * Forces for the Defense of Democracy, a rebel group in Burundi *Foundation for Defense of Democracies The Foundation for Defense of Democracies (FDD) is a 501(c)(3) non-profit think tank and registered lobbying organization based in Washington, D.C., United States. The group's political leanings have been descr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forum For Democracy And Development
The Forum for Democracy and Development (FDD) is a political party in Zambia. History The FDD was founded in 2001 by former members of the Movement for Multi-Party Democracy (MMD), disaffected by Frederick Chiluba's efforts to change the constitution to allow him to stand for a third term. In the 2001 general elections it nominated Christon Tembo as its presidential candidate; Tembo finished third in a field of eleven candidates with 13% of the vote. In the National Assembly elections the party received 16% of the vote, winning 12 seats. Three FDD politicians were later invited by President Levy Mwanawasa to serve in a 'unity cabinet', and they were expelled from the party for accepting the invitation. In 2005 the FDD chose Edith Nawakwi, a former MMD minister, as its president. However, in 2006 the government de-registered the FDD on the grounds that it had failed to submit an annual report. The FDD subsequently joined the United Democratic Alliance, which put forward United P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floppy Disk Drive
A floppy disk or floppy diskette (casually referred to as a floppy, or a diskette) is an obsolescent type of disk storage composed of a thin and flexible disk of a magnetic storage medium in a square or nearly square plastic enclosure lined with a fabric that removes dust particles from the spinning disk. Floppy disks store digital data which can be read and written when the disk is inserted into a floppy disk drive (FDD) connected to or inside a computer or other device. The first floppy disks, invented and made by IBM, had a disk diameter of . Subsequently, the 5¼-inch and then the 3½-inch became a ubiquitous form of data storage and transfer into the first years of the 21st century. 3½-inch floppy disks can still be used with an external USB floppy disk drive. USB drives for 5¼-inch, 8-inch, and other-size floppy disks are rare to non-existent. Some individuals and organizations continue to use older equipment to read or transfer data from floppy disks. Floppy disks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency-division Duplex
A duplex communication system is a point-to-point system composed of two or more connected parties or devices that can communicate with one another in both directions. Duplex systems are employed in many communications networks, either to allow for simultaneous communication in both directions between two connected parties or to provide a reverse path for the monitoring and remote adjustment of equipment in the field. There are two types of duplex communication systems: full-duplex (FDX) and half-duplex (HDX). In a full-duplex system, both parties can communicate with each other simultaneously. An example of a full-duplex device is plain old telephone service; the parties at both ends of a call can speak and be heard by the other party simultaneously. The earphone reproduces the speech of the remote party as the microphone transmits the speech of the local party. There is a two-way communication channel between them, or more strictly speaking, there are two communication channel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency Domain Decomposition
The frequency domain decomposition (FDD) is an output-only system identification technique popular in civil engineering, in particular in structural health monitoring. As an output-only algorithm, it is useful when the input data is unknown. FDD is a modal analysis technique which generates a system realization using the frequency response given (multi-)output data. Algorithm # Estimate the power spectral density matrix \hat_(j\omega) at discrete frequencies \omega = \omega_i. # Do a singular value decomposition of the power spectral density, i.e. \hat_(j \omega_i) = U_i S_i U_i^H where U_i = _,u_,...,u_/math> is a unitary matrix holding the singular values u_, S_i is the diagonal matrix holding the singular values s_. # For an n degree of freedom system, then pick the n dominating peaks in the power spectral density using whichever technique you wish (or manually). These peaks correspond to the mode shape A normal mode of a dynamical system is a pattern of motion in which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LTE-FDD
In telecommunications, long-term evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA standards. It improves on those standards' capacity and speed by using a different radio interface and core network improvements. LTE is the upgrade path for carriers with both GSM/UMTS networks and CDMA2000 networks. Because LTE frequencies and bands differ from country to country, only multi-band phones can use LTE in all countries where it is supported. The standard is developed by the 3GPP (3rd Generation Partnership Project) and is specified in its Release 8 document series, with minor enhancements described in Release 9. LTE is also called 3.95G and has been marketed as "4G LTE" and "Advanced 4G"; but it does not meet the technical criteria of a 4G wireless service, as specified in the 3GPP Release 8 and 9 document series for LTE Advanced. The requirements were set forth by the ITU-R organisation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timex FDD
The Timex FDD 3000 in 1982 was a nearly complete computer by Timex of Portugal. It began its development at Timex Computer Corporation in the U.S., but it was at Timex of Portugal that the work was finished. The Timex FDD 3000 is an upgraded Timex FDD (sometimes known as the FDD3 because it consisted of three separate boxes: the disk drive, the controller and the power supply). The Timex FDD3 was intended as a floppy disk peripheral for the Timex TC2048 or TC2068 microcomputers. It usually had 16K RAM and only one 3″ disk drive, but it could be upgraded to 64K RAM and a second disk drive, making it capable of running CP/M. Since the controller is electrically compatible with today's disk drives, it is possible to connect a 3.5″/5.25″ disk drive to the Timex FDD3 Controller (it's also possible to connect a Hitachi 3″ disk drive to an IBM PC Compatible computer). Later, Timex combined the three boxes of the FDD into one big box called the Timex FDD 3000. Timex also add ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UMTS-FDD
The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP (3rd Generation Partnership Project), UMTS is a component of the International Telecommunication Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators. UMTS specifies a complete network system, which includes the radio access network (UMTS Terrestrial Radio Access Network, or UTRAN), the core network (Mobile Application Part, or MAP) and the authentication of users via SIM (subscriber identity module) cards. The technology described in UMTS is sometimes also referred to as Freedom of Mobile Multimedia Access (FOMA) or 3GSM. Unlike EDGE (IMT Single-Carrier, based on GSM) and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automated Logic Corporation
Automated Logic Corporation is located in Kennesaw, Georgia, United States and manufactures building automation systems. Several of its technological innovations include: the WebCTRL® building automation system; Environmental Index™ tool; Thermographic Color Floor Plans; Time-lapse™ Graphics; Fault Detection and Diagnostics (FDD); EIKON, a uniquely powerful, universal programming tool; I/O Hardware including controllers and routers. WebCTRL is a BACnet native, Browser-based building automation system through which users can fully access their buildings' schedules, setpoints, trends, alarms, and other control functions from virtually any computer, anywhere in the world. Users can also control their buildings with WebCTRL from wireless devices such as a tablets and cell phones. WebCTRL supports multiple languages simultaneously and includes a powerful spreadsheet-based reporting tool. A native BACnet system, WebCTRL interfaces with LonWorks, Modbus and many other pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feature-driven Development
Feature-driven development (FDD) is an iterative and incremental software development process. It is a lightweight or Agile method for developing software. FDD blends a number of industry-recognized best practices into a cohesive whole. These practices are driven from a client-valued functionality (feature) perspective. Its main purpose is to deliver tangible, working software repeatedly in a timely manner in accordance with the Principles behind the Agile Manifesto. History FDD was initially devised by Jeff De Luca to meet the specific needs of a 15-month, 50-person software development project at a large Singapore bank in 1997. This resulted in a set of five processes that covered the development of an overall model and the listing, planning, design, and building of features. The first process is heavily influenced by Peter Coad's approach to object modelling. The second process incorporates Coad's ideas of using a feature list to manage functional requirements and develop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
