function [Id_filtered, Iq_filtered] = matrix_1d_filter(Id,Iq,windowSize) % % Copyright (c) 2014 by Plexim GmbH All rights reserved. % % A free license is granted to anyone to use this software for any legal % non safety-critical purpose, including commercial applications, % provided that: 1) IT IS NOT USED TO DIRECTLY OR INDIRECTLY COMPETE % WITH PLEXIM, and 2) THIS COPYRIGHT NOTICE IS PRESERVED in its % entirety. % % THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, % EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF % MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. % IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY % CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, % TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE % SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. % % This function takes as inputs square matrices Id and Iq. It then uses a % moving average filter along the columns of Iq and the rows of Id. The % windowSize input controls the size of the averaging window. If an even % integer is selected then the parameter is incremented by 1 to make it odd. % % The output of this function is a filterd version of Id and Iq. % % Inputs: % % (Id, Iq): look-up tables for (d-axis, q-axis) currents. It is assumed % that each row corresponds to a unique value of flux linkage in the d-axis % and each column corresponds to a unique value of flux linkage in the % q-axis. % % windowSize: Corresponds to the averaging length of the averaging vector. % A windowSize of 3 will create an averaging vector that averages three % consecutive entries. Must be an odd integer. If an even integer is used % then it is incremented by 1 to make it odd. % % WARNING: Chosing a large windowSize will cause significant deviation from % the original data. A windowSize of 3,5,7 or 9 is recommended. % % Plexim, Inc. % Author: Munadir A. Ahmed % Date: 07/17/2014