Which modulation scheme are having constant energy
modulation?
- 1 Answers
- 7979 Views
- IIIT, NTPC, I also Faced
- E-Mail Answers
Answer Posted / nawabumar(pakistan)
M-ary PSK modulation is constant energy scheme.
This can be proven looking at the constellation diagrams
which also reflec the energy relationships between differnt
points *
* | *
*---|---*
* | *
*
Though its not quite apparent from the fig. but the
distance of points from the centre(measure of energy
content) is same
| Is This Answer Correct ? | 16 Yes | 0 No |
Post New Answer View All Answers
I want previous rrb enteranse exam papers in junior engineer(Signal/Tele/c&w). please send that papers to my id dkg_unnao@yahoo.com
What are the disadvantages of bjt?
1.Introduce yourself by telling your name ,SSC,HSC, degree marks n colleges,something about your family and interests. 2.Tell about your favourite subjects. 3.Tell how satelite communication works? 4.what you mean by handoffs in mobile communication.tel its types. 5.what you mean by signal fading?tell the factors affecting it and also tell the remedies to avoid it. 6.why the microwaves are used? 7.Draw the GSM architecture? 8.What u mean by Antenna?What are its basic components? 9.why you are interested to work in this company? 10.can you work anywhere anytime as per the our need?
What the types of breaking systems in circuit breakers? Why we use CT with fuse in series trip circuit breaker(HT), though we don't use fuse normally in CT output?
What do you understand by voltmeter multiplier?
What is conductor?
Why temperature coefficient of resistance of a semiconductor is negative?
Define noise in modulation?
What are different categories of antenna?
if UT=4v & V LT=-2v the hysteresis voltage is equal to......?
How to Create the Node file with Multi Dropping
how we can calculate the range selection time in mobile communication? or channel searching time?
Explain different types of feedback.
What do you mean by drift velocity and mobility of a free electron?
describe the functioning of parallel adder ? what are the adventages of parallel adder over series adder?
