【摘要】 介绍了一种数字铅球装置,该装置由三维加速度传感器和数据采集电路构成,可以实时测量铅球运动员的投掷力。利用快速小波变换技术提取了运动员多维投掷力的特征,结合滑步式铅球投掷动作对提取到的主要特征分量进行了技术分析。该装置和信号处理方法的应用有助于找出铅球运动员技术动作的优点和不足,为运动技术的分析提供了理论依据。更多还原

【Abstract】 Digital shot device which can measure the throwing force of shot athlete in real time, is introduced. It is composed of a three-dimensional acceleration sensor and the data collection circuitry. The features of multi-dimensional force information are extracted by fast wavelet transform and the feature vectors are analyzed with gliding shot putting. The application of digital shot and the signal processing method is benefit for the study of the shot athlete’s throwing motion. It provides the theoretical basis for analyzing the motion technology.更多还原