Effects of Ground Constituent Parameters on Array Mutual Coupling for DOA Estimation

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left">  Case no.</td><td align="center">Type of ground for DOA estimation</td><td align="center">Type of ground for <svg height="11.6125" id="M99" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 11.4625 11.6125" width="11.4625" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.55)"><path d="M608 242h26l-27 -242h-579v16l382 623l-83 -1q-117 -2 -162 -33q-45 -30 -78 -136h-28l22 207h523v-16l-379 -625h83q146 0 202 40q27 19 45 45q19 26 26 47q9 21 27 75z" id="x1D419"></path></g>
</svg> estimation</td><td align="center">RMSE  degrees</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left"> 1</td><td align="center">Perfect ground</td><td align="center"> Perfect  ground/copper</td><td align="center"> 0.01</td></tr><tr><td align="left"> 2</td><td align="center">Poor ground</td><td align="center"> Perfect ground/copper</td><td align="center"> 1.6</td></tr><tr><td align="left"> 3</td><td align="center">Poor ground</td><td align="center"> Poor ground</td><td align="center"> 0.03</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

RMSE of DOA Estimation for array for perfect and poor ground. 

International Journal of Antennas and Propagation

tab3

Table 3

Table 3: Effects of Ground Constituent Parameters on Array Mutual Coupling for DOA Estimation 