Figure 7: High stability and quality of periodic sinc pulses. In conclusion, a simple technique to produce sinc-shaped Nyquist pulses of unprecedented high quality has been proposed and ...

In the early 1930s, Nyquist began looking into negative-feedback amplifiers and how to determine when they become stable. His findings resulted in the development of the Nyquist Stability Theorem.

8.3. There are many methods of assessing stability, including Routh-Hurwitz, Root Locus, Nyquist, Nichols, and Bode. The most popular is the Bode plot, most likely because it is simple to ...