What is Lambda Tuning?

Tuning a PID controller should always start with a clear understanding of both the control objective and the Design Level of Operation (DLO).  Unfortunately a subsequent step (the calculation of tuning parameters) can often put practitioners in a bind relative to achieving the designated objective.

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What is Cross-Correlation?

Do you remember when school kids simply lined up according to height before heading to the library or to gym class? Shortest in the front. Tallest in the back. A quick glance forward and backward is all anyone needed to do to more or less confirm his or her place in the queue. Any outlier (generally the class clown) could be identified and adjusted quickly by the teacher.  Wouldn’t it be nice if the process for isolating and correcting controller issues was that simple?

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