Signal modulation, Other Engineering

Signal modulation

Modulation involves the modification of some property of a (usually sinusoidal) carrier waveform. The process of recovering the original signal from the modulated signal is called 'demodulation'. The most common modulation methods are:
• amplitude modulation
• frequency modulation
• pulse code modulation.
Modulation of a high frequency carrier by a lower frequency signal allows:


• convenient transmission by high frequency radio waves • shifting of the frequency range occupied by a signal so that multiple signals can be packed into the available bandwidth of the communication link and transmitted simultaneously.

 

344_Signal modulation.png

Posted Date: 8/28/2012 7:34:53 AM | Location : United States







Related Discussions:- Signal modulation, Assignment Help, Ask Question on Signal modulation, Get Answer, Expert's Help, Signal modulation Discussions

Write discussion on Signal modulation
Your posts are moderated
Related Questions
h(t) is an analog IIR filter, with the poles lambda_1 = -1, lambda_2 = -1+i, lambda_3 = -1-i and no zeros. let h[n] be a digital IIR filter with poles which defined by e^lambda_i a



Consider a 3-hp, 220-V, 1800-r/min separately excited dcmotor controlled by a single-phase fully controlled rectifierwith an ac source voltage of 230Vat 60Hz.Assume that the full-l

i have a project to be completed, the project is, How to make a device which warns you when your water reservoir is full?? i want the name of device needed and the way to complete

Solving Poisson''s equation find out electric field in the transition region and show that electric field is maximum at the junction of p-n diode

Compressor stall and surge: ‘Surge' can occur in both centrifugal and axial flow compressors and is the reversal of the airflow in the compressor. It is a very undesirable con

The effect of swell factors on volumes

Thrust reversal: Thrust reversal is a means of reducing the landing run of an aircraft without excessive use of wheel brakes or the use of braking parachutes.  On a propeller d