calibration: add support for plotting ST second order filter shapes

calibration/src/sphear_bf_plot_filters.m

@@ -27,7 +27,7 @@
 %%  You should have received a copy of the GNU General Public License
 %%  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-function sphear_bf_plot_filters(FC, W, X, Y, Z, U, V)
+function sphear_bf_plot_filters(FC, W, X, Y, Z, S, T, U, V)
   fig = figure;
   %% color plot
   popts = '.k';
@@ -56,9 +56,11 @@ function sphear_bf_plot_filters(FC, W, X, Y, Z, U, V)
     zh = semilogx(FC, 10*log10(abs(Z)), zopts, "linewidth", 1.5);
     l = legend([wh, xh, yh, zh], {'W', 'X', 'Y', 'Z'});
     if (exist("U"))
+      sh = semilogx(FC, 10*log10(abs(S)), 'r:', "linewidth", 1.5);
+      th = semilogx(FC, 10*log10(abs(T)), 'b:', "linewidth", 1.5);
       uh = semilogx(FC, 10*log10(abs(U)), 'r--', "linewidth", 1.5);
       vh = semilogx(FC, 10*log10(abs(V)), 'b--', "linewidth", 1.5);
-      l = legend([wh, xh, yh, zh, uh, vh], {'W', 'X', 'Y', 'Z', 'U', 'V'});
+      l = legend([wh, xh, yh, zh, sh, th, uh, vh], {'W', 'X', 'Y', 'Z', 'S', 'T', 'U', 'V'});
     end
   else
     l = legend([wh, xh, yh], {'W', 'X', 'Y'});