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1983-10-06
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OPTIMIZATION
A. GENERAL DESCRIPTION
The optimization section of COMPACT is the single most
powerful option available to the user. By proper application,
the designer can avoid wasting valuable time and effort per-
suing an inappropriate design approach. Here, one can simply
define what response is desired, start the optimization pro-
cedure, and simply walk away, allowing the program to tackle
the finer points of the design process.
However, don't permit yourself to assume a false sense
of security, thinking that all one must do is patch together
some circuit out of the blue, define some idealistic response,
and then expect the program to accomplish the seemingly impos-
sible. It may, in fact, be impossible. Proper optimization
requires that certain general guidelines be adhered to. We
shall discuss this at length in a later section.
Optimization is accomplished by use of a modified razor
search routine, some aspects of steepest decent having been
applied. Randomization of variables is provided, allowing
some amount of ability in preventing being trapped in local
minima. In optimization, we are searching for the best re-
sponse available, given the bounds of what we feel is both de-
sirable and acceptable as far as performance is concerned.
Up to 6 element parameters may be optimized, and up to 20
optimization frequencies and goals may be specified. These
objectives are written using the objectives editor, a descrip-
tion of which can be found in the following chapter.
B. MENU OPTIONS
The menu options define the same functions as in the edi-
tors, with the exception being that all of the optimization
elements are displayed on the screen. This creates some dif-
ferences in the overall function of the selections, which are:
LIST ELEMENTS ...... This is a partial screen dump
request. That portion of the
screen that pertains to the ele-
ments themselves and the error
function is transfered to the
printer.
OBJECTIVES ......... Transfers the user to the objec-
tives editor. See the following
chapter for a description.
SENSITIVITY ........ Request for sensitivity analysis,
covered in the next section.
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