### Search Keyword By: K

**Description**

# k

* Abbreviation for ***kilo **(SI prefix for 10^{3}). * See* **International System of Units.**

# k-factors

In tropospheric radio propagation, the ratio of the effective Earth radius to the actual Earth radius. *Note:* The k-factor is approximately 4/3. **2.** In ionospheric radio propagation, a correction factor that (a) is applied in calculations related to curved layers, and (b) is a function of distance and the real height of ionospheric reflection.

# k*T*

* See* **noise power density.**

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# Kalman filter

A computational algorithm that processes measurements to deduce an optimum estimate of the past, present, or future state of a linear system by using a time sequence of measurements of the system behavior, plus a statistical model that characterizes the system and measurement errors, plus initial condition information.

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# Kbps

Kilobits per Second

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# KBps

Kilobytes per Second

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# KDC

* Abbreviation for* **key distribution center.**

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