WIP Büro

Classes/Filter.m

@@ -151,14 +151,38 @@ classdef Filter
             
                     faxis=linspace(-obj.fsamp/2,obj.fsamp/2,blocklen+1)';%generates arow vector faxis of blocklen+1 points linearly spaced between and including -para.fs/2 and para.fs/2
                     faxis=ifftshift(faxis(1:end-1));
-                    
+
                     H=exp(-((faxis)/(obj.f_cutoff*2)).^(2*obj.filtdegree)*log(2)*2^(2*obj.filtdegree-1));
+
+%                     figure()
+%                     hold on
+%                     xline(obj.f_cutoff*1e-9,'LineWidth',3,LineStyle='--');
+%                     xline(-obj.f_cutoff*1e-9,'LineWidth',3,LineStyle='--');
+%                     plot(faxis*1e-9,20*log10(abs(H)),'LineWidth',3);
+%                     ax = gca;
+%                     ylim([-6 0])
+%                     grid on
+%                     xlabel('Freq in GHz')
+%                     ylabel('Magnitude (dB)')
+
             end
 
             % Build Filter from coefficients
             if filterType ~= 10
                 [H,w] = freqz(B, A, obj.signal_length,'whole');
-                
+
+%                 figure()
+%                 hold on
+%                 plot(w/(2*pi)*obj.fsamp*1e-9,20*log10(abs(H)),'LineWidth',3);
+%                 ax = gca;
+%                 ylim([-6 0])
+%                 grid on
+%                 xlabel('Freq in GHz')
+%                 ylabel('Magnitude (dB)')
+
+
+                % freqz(B, A)
+                %hfvt = fvtool(B,A);
             end
 
         end
@@ -167,7 +191,12 @@ classdef Filter
         function show(obj)
             obj.signal_length = 1024;
             [H,w] = obj.buildFilter(obj.filterType);
-            plot(w,20*log10(abs(H)))
+            plot(w/pi,20*log10(abs(H)));
+            ax = gca;
+            ax.XTick = 0:.5:2;
+            grid on
+            xlabel('Normalized Frequency (\times\pi rad/sample)')
+            ylabel('Magnitude (dB)')
             %freqz(H);
         end
     end