private void AnalyzeEquirippleLpFilter()
{
var order = 47;
var fp = 0.15;
var fa = 0.18;
var ripplePass = 1.0; // dB
var rippleStop = 42.0; // dB
if (filterParamsDataGrid.RowCount > 0)
{
order = Convert.ToInt32(filterParamsDataGrid.Rows[0].Cells[1].Value);
fp = Convert.ToDouble(filterParamsDataGrid.Rows[1].Cells[1].Value);
fa = Convert.ToDouble(filterParamsDataGrid.Rows[2].Cells[1].Value);
ripplePass = Convert.ToDouble(filterParamsDataGrid.Rows[3].Cells[1].Value);
rippleStop = Convert.ToDouble(filterParamsDataGrid.Rows[4].Cells[1].Value);
}
orderNumeratorTextBox.Text = (order - 1).ToString();
orderDenominatorTextBox.Text = (order - 1).ToString();
var wp = Remez.DbToPassbandWeight(ripplePass);
var wa = Remez.DbToStopbandWeight(rippleStop);
_filter = new FirFilter(DesignFilter.FirEquirippleLp(order, fp, fa, wp, wa));
filterParamsDataGrid.RowCount = 5;
filterParamsDataGrid.Rows[0].Cells[0].Value = "order";
filterParamsDataGrid.Rows[0].Cells[1].Value = order;
filterParamsDataGrid.Rows[1].Cells[0].Value = "fp";
filterParamsDataGrid.Rows[1].Cells[1].Value = fp;
filterParamsDataGrid.Rows[2].Cells[0].Value = "fa";
filterParamsDataGrid.Rows[2].Cells[1].Value = fa;
filterParamsDataGrid.Rows[3].Cells[0].Value = "rp";
filterParamsDataGrid.Rows[3].Cells[1].Value = ripplePass;
filterParamsDataGrid.Rows[4].Cells[0].Value = "rs";
filterParamsDataGrid.Rows[4].Cells[1].Value = rippleStop;
}
