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Noise is an unwanted signal. In communication systems, noise affects both transmitter and receiver performance. It degrades both the modulation quality of a transmitter and the sensitivity of a receiver. Because of this, noise reduction in electronic devices is in the best interest of R&D engineers.
However, to simulate a realistic environment you need to inject a “noise” signal into your design. The noise signal needs to be simple and based on mathematical models. The additive white Gaussian noise (AWGN) is the most common noise for receiver performance test. Another common noise in RF systems is phase noise. Adding phase noise impairment for accurate signal substitution or tolerance testing is helpful in evaluating and troubleshooting your device under test (DUT).
In this white paper, you will learn what the AWGN and phase noise are and how to correctly and accurately apply the noise to your desired signal for receiver performance test.
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