Question

explain the principles of DPSK in digital communication​

Answer 1

Answer:

DPSK is a technique of BPSK, in which there is no reference phase signal. Here, the transmitted signal itself can be used as a reference signal. ... The output of the XNOR gate along with the carrier signal is given to the balance modulator, to produce the DPSK modulated signal.

Answer 2

Answer :↦

• ᴅᴘꜱᴋ ɪꜱ ᴀ ᴛᴇᴄʜɴɪQᴜᴇ ᴏꜰ ʙᴘꜱᴋ, ɪɴ ᴡʜɪᴄʜ ᴛʜᴇʀᴇ ɪꜱ ɴᴏ ʀᴇꜰᴇʀᴇɴᴄᴇ ᴘʜᴀꜱᴇ ꜱɪɢɴᴀʟ. ʜᴇʀᴇ, ᴛʜᴇ ᴛʀᴀɴꜱᴍɪᴛᴛᴇᴅ ꜱɪɢɴᴀʟ ɪᴛꜱᴇʟꜰ ᴄᴀɴ ʙᴇ ᴜꜱᴇᴅ ᴀꜱ ᴀ ʀᴇꜰᴇʀᴇɴᴄᴇ ꜱɪɢɴᴀʟ. ᴛʜᴇ ᴏᴜᴛᴘᴜᴛ ᴏꜰ ᴛʜᴇ xɴᴏʀ ɢᴀᴛᴇ ᴀʟᴏɴɢ ᴡɪᴛʜ ᴛʜᴇ ᴄᴀʀʀɪᴇʀ ꜱɪɢɴᴀʟ ɪꜱ ɢɪᴠᴇɴ ᴛᴏ ᴛʜᴇ ʙᴀʟᴀɴᴄᴇ ᴍᴏᴅᴜʟᴀᴛᴏʀ, ᴛᴏ ᴘʀᴏᴅᴜᴄᴇ ᴛʜᴇ ᴅᴘꜱᴋ ᴍᴏᴅᴜʟᴀᴛᴇᴅ ꜱɪɢɴᴀʟ.

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