METHOD FOR DETERMINING AT LEAST ONE SYSTEM STATE BY MEANS OF A KALMAN FILTER

• Main Author: WEISSENMAYER SIMON
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC DIGITAL DATA PROCESSING; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

The invention relates to a method that determines at least one system state of a system using a Kalman filter. At least one measured value, measured by at least one sensor of the system, is supplied to the Kalman filter. The method includes following steps: a) estimating the system state using the Kalman filter, and outputting an estimation result and at least one associated item of information relating to a reliability of the estimation result; b) determining a discrepancy between at least one model value associated with the estimation result and at least one measured value associated with the estimation result, and c) correcting the at least one associated item of information relating to the reliability of the estimation result using the determined discrepancy. 本发明涉及一种借助于卡尔曼滤波器确定至少一个系统状态的方法，其中将由系统的至少一个传感器测量的至少一个测量值输送给卡尔曼滤波器，该方法包括至少以下步骤：a)借助于卡尔曼滤波器执行对系统状态的估计，其中输出估计结果和关于估计结果的可靠性所属的至少一个信息，b)确定属于估计的至少一个模型值和属于估计的至少一个测量值之间的差异，c)利用所确定的差异校正关于估计可靠性的至少一个信息。