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# What is binary phase shift keying (BPSK)?

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SLOKA describes BPSK as the simplest form of phase shift keying that uses two phases separated by 180 degrees. In BPSK, it does not matter where exactly the positions of the castellation points are, and they are always shown on the real axis, usually at 0 and 180 degrees.

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BPSK is arguably the most robust of all PSKs because it takes the highest level of distortion and noise to make the modulator make an incorrect decision. According to the European Space Agency, BPSK is a very important signal used in satellite navigation. It was, in fact, the first one used in satellite navigation, and it is still widely used in 2014 despite its simplicity, although it could eventually be replaced by BCS modulation. BPSK Modulator Baseband uses the binary phase shift keying method to modulate signals. This produces a baseband, which is a representation of the modulated signal. The Baseband block accepts the input signal in column vector. However, the input must be a binary-valued signal that is time-discrete. The modulator Baseband block also makes it easy to visualize the signal constellation directly from the mask. This handy feature allows one to visualize the constellation of a signal for specific parameters.

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## Related Questions

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Amplitude is the factor by which a function is stretched vertically. The period of a repeating graph is the width of each repeat. The phase shift is the amount that the graph is moved horizontally.

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The number eleven in binary is 1011. When written in the commonly used base ten system, eleven is composed of one ten and one one. Binary is a base two system, and in this system, eleven consists of one eight, zero fours, one two and one one.

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