BPSK
Binary Phase Shift Keying

Binary Phase-shift keying (BPSK) is a digital modulation scheme that conveys data by changing, or modulating, two different phases of a reference signal (the carrier wave). The constellation points chosen are usually positioned with uniform angular spacing around a circle. This gives maximum phase-separation between adjacent points and thus the best immunity to corruption. They are positioned on a circle so that they can all be transmitted with the same energy. In this way, the moduli of the complex numbers they represent will be the same and thus so will the amplitudes needed for the cosine and sine waves.

If you enjoy using our glossary, here are some other useful resources you might like...

Get your weekly dose of telecoms terminology delivered straight to your inbox!

We promise, no spam - just clear-cut telecoms terms to keep you on top of your game.

Subscribe

Our YouTube channel offers over a hundred free videos (and counting!) covering a range of technology topics.

Subscribe to our channel to be the first to know when we release new videos:

FREE Intro to 5G Sample Course

Use this no-obligation free trial to get a taste of what it's like to be an Mpirical student.

Included with the trial is an all-access pass to the LearningZone, which contains learning tools and other useful resources to help you make the most of your training.

Start My Free Trial