A Novel Sigma-Delta Modulator with Fractional-Order Digital Loop Integrator

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/mpe/volume-2017/9861383/figures/9861383.fig.008a.svgz" name="9861383.fig.008a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>4.5th-order Sigma-Delta modulator</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/mpe/volume-2017/9861383/figures/9861383.fig.008b.svgz" name="9861383.fig.008b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>4th-order Sigma-Delta modulator</td></tr></table>

<div>Root locus comparison between the 4.5th-order and 4th-order Sigma-Delta modulators.</div>

Mathematical Problems in Engineering

fig8

Figure 8

Figure 8: A Novel Sigma-Delta Modulator with Fractional-Order Digital Loop Integrator 