![Figure 2: The complex sinusoid x0[n] = e(j2 pi 0.125 n) plotted in the complex plane.](https://www.wavewalkerdsp.com/wp-content/uploads/wordpress-popular-posts/3104-featured-125x75.png)
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Phase, Frequency and Negative Frequency in Complex Sinusoids - Engineering Mindset: Be a Stone Carver, not a Brick Mason
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![A BPSK signal s[n], real Gaussian noise w[n], and the received signal x[n] = s[n] + w[n] for SNR = 20 dB](https://www.wavewalkerdsp.com/wp-content/uploads/2023/12/HowToComputeSignalToNoiseRatioSNRInSimulation_signalNoiseTimeDomain-300x240.png)
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