Signal Processing Stack Exchange
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Questions tagged [bpsk]

BPSK, a mechanism of modulation is expanded Binary Phase Shift Keying.

BPSK is the simplest form of Phase Shift Keying. It uses two phases, separated by 180°, and so can also be termed 2-PSK. It does not particularly matter exactly where the constellation points are positioned, and in this figure they are shown on the real axis, at 0° and 180°. This modulation is the most robust of all the PSKs since it takes the highest level of noise or distortion to make the demodulator reach an incorrect decision.

Source: Wikipedia.

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Side Lobes with different power level in BPSK PSD

I determined the PSD of a BPSK modulated signal using the MATLAB pwelch function and default parameters. My code looks like the following: N = 2000; %no of bits Rb = 1000; %bit rate k = 20; …
Elin Das
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BPSK and pulse shaping (square-root raised cosine)

I'm trying to make my own transmitter & receiver in MATLAB, starting with the basics and adding more complex stuff as I progress. So I have a few questions regarding pulse shaping and more specifically, about SRRC. I'm using BPSK. I'm generating…
researcher9
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At what bandwidth does BPSK become totally unreliable?

So I know that the baseband bandwidth of BPSK needs to be over 1/2 the baud rate, but I can't find any sort of graph that shows the increase of BER as the bandwidth falls below that, such as when the signal is filtered by the frequency response of…
Lewis Kelsey
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How to get the channel impulse response by using PRBS signal with BPSK modulation?

I want to get the channel impulse response by sending PRBS. Following is some channel measurement flowchart that I found a(t) is the PRBS，sending it to transmitter to upconversion to BPSK modulated signal s(t)，r(t) represnet the receiving signal…
Y.Y.Lin
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