why we are using impulse signal for analysis of any control system?

why we are using impulse signal for analysis of any control system?

Impulse signal spectrum

"In signal processing, the impulse response, or impulse response function, of a dynamic system is its output when presented with a brief input signal, called an impulse".

The reason why we use impulse responce for analysis of any control system is because any signal can be represented using impulse responce.

Example,

If i wants to sample a signal & if i wantprecise samples then i need to use impulse signal as a sampling signal although its not possible to generate animpulse signal because width of that signal approches to zero at origin.

Multiplexing and Multiple Access

Multiplexing And Multiple Access : Digital Communications Difference between Multiplexing and Multiple Access: Sr.No. Multiplexing Multiple Access 1 “In telecommunications and computer networks, multiplexing is a process where multiple analog message signals or digital data streams are combined into one signal over a shared medium.” “In telecommunications and computer networks, a channel access method or multiple access method allows several terminals connected to the same multipoint physical medium to transmit over it and to share its capacity.” 2 The multiplexed signal is transmitted over a communication channel, which may be a physical transmission medium. A channel-access scheme is based on a multiplex method that allows several data streams or signals to share the same communication channel or physical media.

Difference in between Time division multiplexing (TDM) and Frequency division multiplexing (FDM)

Difference in between TDM and FDM: This page on FDM versus TDM describes difference between FDM and TDM multiplexing . FDM is the short form of frequency division multiplexing and TDM is the short form of time division multiplexing. In FDM each signal is modulated onto different unique RF carrier frequency and all carrier frequencies are separated significantly so that bandwidth of the signals do not overlap in frequency domain. Figure: Difference in between TDM and FDM

Comparison between armature controlled and field controlled DC servo motor

Comparison between armature controlled and field controlled DC servo motor : Field controlled DC servomotor Armature controlled DC servomotor 1. Field is excited by control voltage Armature is excited by control voltage 2. Armature current kept constant Field current kept constant 3. Required low power amplifiers are simple to design Required high power amplifiers 4. Efficiency is poor Efficiency is better 5. It has large time constant It has small time constant 6. Cost is low Cost is high 7. It is open loop system It is close loop system Comparison between ar

M&MA

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