HOW TO USE PZ_mapping

  • How to create zero, pole or all pass
  • How to modify the coordinates of zero, pole or all pass
  • How to delete zero, pole or all pass
  • How to add gain
  • How to add phase
  • How to use the option filters

    •  

     
     
     
     
     
     
     


     
     

    To create zero, pole or all pass you have to click on the button Add (zero, pole or all pass)

    Then will appear a new window that you have to fill in the coordinates of the zero, pole or zero. As you can see you have the possibility to create real or complex zero, pole or all pass.

    You can see that when you add a new zero, pole or all pass the text below the charts show the coordinates of the zero, pole or all pass you added. And the type of zero, pole or all pass :real or complex.

    To modify the coordinates of zero, pole or all pass you have 2 options:

    If you decide the first option you just have to click with the mouse on the zero, pole or all pass you want to move and drag it where you need it.

    To type in the new coordinates you have to fill in the text below the charts and then click onto the button modify value.

    To delete zero, pole or all pass you have 2 options:

    When you click on the button RESET all the created zero, pole and all pass will be removed from the plots charts.

    To select a zero, pole or all pass you have to click on it with the mouse, and then by clicking on the button REMOVE zero/pole/all pass  you remove it (if you don't select the zero, pole or all pass then when you click on the button REMOVE zero/pole/all pass it will remove the last created zero, pole or all pass )
     

    To add gain on the magnitude plot you just have to fill in the value in dB on the text area called:add gain and press the button modify value.

    You have to know that the add gain option is restricted to +30dB to -infinity.After using it you can come back to the init value by typing the value 0.

    To add phase on the phase plot you just have to fill in the value in degree on the text area called:add phase and press the button modifyvalue.

    You have to know that the add phase option is not restricted!!. After using it you can come back to the init value by typing the value 0.

    At the bottom of this application you have 4 option filters that you can use.

    By using them you can plot the zero and pole that compose them. You have to fill in the order desired in the text area called order: it is restricted to 2nd to 4th order low pass filter. Then choose with the mouse the type of filter and then click on the button OK.