How to design an amplitude shifting key ( ASK ) circuit ?

Question

I wanna design an ASK ( Amplitude Shifting Key ) cct ... I wanna know how to design it and have a schematic of this circuit

Answer 1

First you need to decide what carrier frequency you will use. Are you talking audio frequency or radio frequency.

Given that you want to send and receive a binary signal. Your transmitter will start by turning the carrier on and off using the 1's and 0's of the binary signal.

The receiver simply detects the amplitude of the carrier and using a threshold turns the signal back into 0's and 1's.

The details will depend on your specific application and may require filtering, clock recovery, etc.

Answer 2

ok using here formulation: y=Acos(Bx-C),A=amplitude, era=2pi/B, section shift=C/B The amplitude for this reason is 4. The vertical shift may be 2 by using fact it has no longer something to do with the periodicity of the cos function B for this reason is 3 and era is 2pi/B so era = 2pi/3. section shift: you should sparkling up 3*theta +3pi/2 = 0 that provides theta = -pi/2 by using fact the section shift and that's a lag or shift to the left.

Answer 3

As far as I can see, a.s.k. is just a fancy name for what is traditionally called c.w.

It's simply on/off keying of the carrier. Nothing mysterious or clever (as the new daft name might suggest.)

Answer 4

Here's a search website for electronic designs:

http://www.electronicdesign.com/search/...