[Scipy-tickets] [SciPy] #1812: Erratic phase plot for high order filters

SciPy Trac scipy-tickets@scipy....
Thu Jan 24 08:07:40 CST 2013


#1812: Erratic phase plot for high order filters
--------------------------+-------------------------------------------------
 Reporter:  kitmonisit    |       Owner:  cdavid     
     Type:  defect        |      Status:  new        
 Priority:  normal        |   Milestone:  Unscheduled
Component:  scipy.signal  |     Version:  0.11.0     
 Keywords:                |  
--------------------------+-------------------------------------------------
Changes (by pv):

  * owner:  somebody => cdavid
  * component:  Other => scipy.signal


Comment:

 Needs some DSP expert input --- it's not clear to me which step here
 fails, and what role numerical precision plays (i.e. whether this
 operation is possible to do in floating point). Do you know which is the
 first step that gives unexpected results?

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1812#comment:2>
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