Question

A continuously operating coherent Binary Phase Shift Keying (BPSK) system is made by an engineer. He claims that it is having an average error probability of 10^-5. The system produced 1000 errors in a day when tested with a data rate of 500 bits/s and the single-sided noise power spectral density is     No=10^-10 W/Hz. He also claim that the system is capable of maintaining the error rate even if the received power is as low as 10^-6 W. Do you agree with his claims? Give justifications to your answer.

please, I need a clear answer.

Answer 1

• Yes, I agree because BPSK similarly in some cases called PRK, stage inversion keying, or 2PSK is the most straight forward type of stage movement keying PSK. it utilizes two stages which are isolated by 180so that it can be termed as 2-PSK .
• it doesn't specially make a difference precisely where the star grouping focuses are situated, and in this figure thay are appeared on the genuine pivot, at 0 degrees and 180 degrees.
• This balance is the most strong of all the PSKs since it takes the largest amount of commotion or contortion to make the demodulator achieve a wrong choice. it is, be that as it may, just ready to regulate at 1 bit/image as is inadmissible for high information rate applications.
• With in the sight of a discretionary stage shift presented by the correspondences channel, the demodulator can't tell which froup of stars point is which. Therefore, the information is regularly differentially encoded preceding tweak.
• Binary phase shift keying is practically equal to 2-QAM adjustment.
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