what are the different results, if we superpose carrier and signal in terms of ASK, FSK and PSK..??
ASK = Amplitude Shift Keying
FSK = Frequency Shift Keying
PSK = Phase Shift Keying
2007-02-16 19:26:04 · 4 answers · asked by nUssie.. 2 in Science & Mathematics ➔ Engineering
Have you read all three Wikipedia acticles?
2007-02-16 19:31:13 · answer #1 · answered by ringm 3 · 0⤊ 0⤋
Shift keying is a term for the modulation of a carrier into two states. It comes from the use of telegraph keys to send messages. The carrier is in one state with the key open, and "shifts" to a second state when the key is pressed. The term has become generalized to refer to any two-state modulation. The different forms of keying are based on what property of the carrier is changed when the state is changed;
ASK: the amplitude changes
FSK: the frequency changes
PSK: the phase changes.
2007-02-16 20:07:35 · answer #2 · answered by gp4rts 7 · 0⤊ 0⤋
Ask Psk
2016-12-24 19:49:56 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Psychologists learn the way human beings think of and act. Psychologists use their awareness to help those with problems to alter their lives for the greater ideal. Many psychologists artwork in well being and training centers. Psychiatrists guard and manage people who've psychological well being issues. because they have qualified as scientific docs, psychiatrists can prescribe medications and supply categories of remedy to their sufferers
2016-12-17 18:06:40 · answer #4 · answered by ? 3 · 0⤊ 0⤋