Home > Terms > English, UK (UE) > Transfer function
Transfer function
A mathematical statement that describes the transfer characteristics of a system, subsystem, or equipment. 2. The relationship between the input and the output of a system, subsystem, or equipment in terms of the transfer characteristics. Note 1: When the transfer function operates on the input, the output is obtained. Given any two of these three entities, the third can be obtained. Note 2: Examples of simple transfer functions are voltage gains, reflection coefficients, transmission coefficients, and efficiency ratios. An example of a complex transfer function is envelope delay distortion. Note 3: For a negative feedback circuit, the transfer function, T, is given by where eo is the output, ei is the input, G is the forward gain, and H is the backward gain, i.e., the fraction of the output that is fed back and combined with the input in a subtracter. 3. Of an optical fiber, the complex mathematical function that expresses the ratio of the variation, as a function of modulation frequency, of the instantaneous power of the optical signal at the output of the fiber, to the instantaneous power of the optical signal that is launched into the fiber. Note: The optical detectors used in communication applications are square-law devices. Their output current is proportional to the input optical power. Because electrical power is proportional to current, when the optical power input drops by one-half (3 dB,) the electrical power at the output of the detector drops by three-quarters (6 dB. )
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Telecommunications
- Category: General telecom
- Company: ATIS
- Product:
- Acronym-Abbreviation:
Other Languages:
Member comments
Terms in the News
Featured Terms
Abraham Lincoln
Abraham Lincoln (February 12, 1809 – April 15, 1865) was the 16th President of the United States, serving from March 1861 until his assassination in ...
Contributor
Featured blossaries
stanley soerianto
0
Terms
107
Blossaries
6
Followers
Blossary Of Polo Shirts Brands
Browers Terms By Category
- Investment banking(1768)
- Personal banking(1136)
- General banking(390)
- Mergers & acquisitions(316)
- Mortgage(171)
- Initial public offering(137)
Banking(4013) Terms
- Yachting(31)
- Ship parts(4)
- Boat rentals(2)
- General sailing(1)
Sailing(38) Terms
- Conferences(3667)
- Event planning(177)
- Exhibition(1)
Convention(3845) Terms
- Wireless networking(199)
- Modems(93)
- Firewall & VPN(91)
- Networking storage(39)
- Routers(3)
- Network switches(2)
Network hardware(428) Terms
- World history(1480)
- Israeli history(1427)
- American history(1149)
- Medieval(467)
- Nazi Germany(442)
- Egyptian history(242)