Determination of open loop responses from closed loop measurements

摘要: Method and apparatus for determining open-loop parameters each of three general feedback configurations from measurements the closed-loop error signals or other output produced in response to provision predetermined input configuration. The loop one embodiment includes a sum difference module, controller plant module sensor dynamics arranged serially, where actions are represented by associated matrices C, P H, respectively, when operating linear region. second first C P, third modules embodiments used introduce arbitrary test into loop. Each is defined sequence matrix equations that determine various combinations intermediate terms provided. These rewritten certain combined action matrices, these "unwrapped" with