UnitDelaySystem.java

/*
 * Created on 2006/02/03
 * Copyright (C) 2006 Koga Laboratory. All rights reserved.
 *
 */
package org.mklab.tool.control.system.discrete;

import org.mklab.nfc.matrix.ComplexNumericalMatrix;
import org.mklab.nfc.matrix.RealNumericalMatrix;
import org.mklab.nfc.scalar.ComplexNumericalScalar;
import org.mklab.nfc.scalar.RealNumericalScalar;
import org.mklab.tool.control.LinearSystemFactory;


/**
 * 1サンプル遅れを表わすクラスです。
 * 
 * @author yusuke
 * @version $Revision$, 2006/02/03
 * @param <RS> type of real scalar
 * @param <RM> type of real matrix
 * @param <CS> type of complex scalar
 * @param <CM> type of complex matrix
 */
public class UnitDelaySystem<RS extends RealNumericalScalar<RS,RM,CS,CM>, RM extends RealNumericalMatrix<RS,RM,CS,CM>, CS extends ComplexNumericalScalar<RS,RM,CS,CM>, CM extends ComplexNumericalMatrix<RS,RM,CS,CM>> extends DiscreteLinearDynamicSystem<RS,RM,CS,CM> {

  /**
   * 新しく生成された<code>UnitDelaySystem</code>オブジェクトを初期化します。
   * 
   * @param size 入出力の数
   * @param sunit unit of scalar
   */
  public UnitDelaySystem(final int size, RS sunit) {
    super(LinearSystemFactory.createLinearSystem(sunit.createZeroGrid(size, size), sunit.createUnitGrid(size, size), sunit.createUnitGrid(size, size), sunit.createZeroGrid(size, size)), sunit);
  }

  /**
   * 新しく生成された<code>UnitDelaySystem</code>オブジェクトを初期化します。
   * @param sunit unit of scalar
   */
  public UnitDelaySystem(RS sunit) {
    super(sunit);
    setAutoSize(false);
  }

  /**
   * @see org.mklab.tool.control.system.SystemOperator#setInputSize(int)
   */
  @Override
  public void setInputSize(final int size) {
    if (size < 0) {
      return;
    }

    super.setInputSize(size);
    super.setOutputSize(size);

    if (getStateSize() != size) {
      setStateSize(size);
      super.setInitialState(this.sunit.createZeroGrid(size, 1));
      setLinearSystem(LinearSystemFactory.createLinearSystem(this.sunit.createZeroGrid(size, size), this.sunit.createUnitGrid(size, size), this.sunit.createUnitGrid(size, size), this.sunit.createZeroGrid(size, size)));
    }
  }

  /**
   * @see org.mklab.tool.control.system.SystemOperator#setOutputSize(int)
   */
  @Override
  public void setOutputSize(final int size) {
    if (size < 0) {
      return;
    }

    super.setInputSize(size);
    super.setOutputSize(size);

    if (getStateSize() != size) {
      setStateSize(size);
      super.setInitialState(this.sunit.createZeroGrid(size, 1));
      setLinearSystem(LinearSystemFactory.createLinearSystem(this.sunit.createZeroGrid(size, size), this.sunit.createUnitGrid(size, size), this.sunit.createUnitGrid(size, size), this.sunit.createZeroGrid(size, size)));
    }
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void setInitialState(RM initialState) {
    super.setInitialState(initialState);

    final int size = initialState.length();

    if (getStateSize() != size) {
      setStateSize(size);
      setLinearSystem(LinearSystemFactory.createLinearSystem(this.sunit.createZeroGrid(size, size), this.sunit.createUnitGrid(size, size), this.sunit.createUnitGrid(size, size), this.sunit.createZeroGrid(size, size)));
    }

    setInputSize(initialState.length());
    setOutputSize(initialState.length());
  }

}