METHOD AND APPARATUS FOR EVALUATING ULTRASONIC SIGNALS, ULTRASONIC MEASUREMENT SYSTEM AND WORK APPARATUS

• Main Authors: WENZLER AXEL, BROCKMANN MARKUS
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2020
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The present invention relates to a method (T) for evaluating ultrasonic signals, in which an analog ultrasonic reception signal (E) is subjected to analog-to-digital conversion (T3) and for deriving an envelope (Eh) for assessing the ultrasonic reception signal (E) a signal-matched filter process (T7) in digital form, wherein the ultrasonic reception signal (Ed1) subjected to analog-to-digital conversion is subjected to complex mixing (T4) prior to the filter process (T7) and the signal-matched filter process (T7) is carried out in the complex domain. 本发明涉及一种用于分析处理超声信号的方法(T)，在所述方法中，对模拟超声接收信号(E)进行模数转换(T3)，并且为了推导用于评估所述超声接收信号(E)的包络曲线(Eh)以数字形式对所述模拟超声接收信号进行信号匹配的滤波过程(T7)，其中，在所述滤波过程(T7)之前，复数混频(T4)所述经模数转换的超声接收信号(Ed1)，并且以复数的形式执行信号匹配的滤波过程(T7)。