Tools That Fast-Track You To DSP Solutions

More About Sketch-a-Filt

More Details for Sketch-A-Filt

Upon typing sketchafilt in the MATLAB Command Line, the Sketch-a-Filt GUI comes up, forming the primary design platform for the FIR and/or IIR design work
This GUI has two exhibits: a long impulse response display and, below that, the larger frequency-domain display, showing the (red) target profile WHICH HAS BEEN MOUSE-DRAWN defining a desired multiband complex-coefficient gain profile - and (in purple) one 33-coefficient FIR approximation.
Also (in magenta) is shown a 11th-order IIR curve approximating the red profile. Further highlights are the control parameter clusters and 2 (of 6 available at "top-level") selected checkboxes for the design techniques currently in force:
You may radically and immediately change the design target and its two approximations simply by mouse-drawing some change to the red target profile
Pole-zero patterns for the two (or more, if desired) and other filter credentials can be depicted in a separate dedicated visualization figure window by invoking "See All Filters" under the "Tools" menu item near the top of the GUI
Many more design techniques can be unleashed by selecting from a host of "second-level" techniques (incorporating algorithms you develop yourself, alongside three dozen-plus "factory-supplied" specialist routines) lodged under the UserDef feature of this tool
Thus it is easy to compare a broad range of design styles, exploiting a powerful standardized test and measurement environment

All three of our software products are incorporated into the software package supporting the Training Courses described under "Services" on this website.
To arrange an on-site course please contact Dr. Gerald D Cain, Email: cain@dspcreations.com