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本文给出了只用加速度计不用陀螺或其它角运动敏感的传感器测量空间弹道参数的新方法。由于鱼雷导弹样武器模型在实验的发射阶段和入水阶段受到巨大的加速度和减速 ,同时又由于它们系长细比相当大的细长体 ,只用加速度计就比用陀螺有很大优越性 ,因为加速度计耐冲击、质量和体积都小。文中指出 ,为了测量六个弹道参数 ,至少要用六个加速度计 ,但为了提高试验准确度 ,本文也提出了用七个加速度计 ,九个加速度计和十个加速度计的测量方案 ,并提出相关的数据处理方程的解法。本文还就细长体实验模型对布置加速度计位置的限制 ,进行了分析 ,提出降低数据处理方程的条件数 ,避免出现病态方程和优化加速度计位置的方法。文章还给出了能得到高精度的试验数据处理方法。
In this paper, a new method of measuring the space trajectory parameters using accelerometers without gyro or other angular motion sensitive sensors is presented. Since the torpedo-missile-like weapon model receives great acceleration and deceleration during the launching and water-entry phases of the experiment, and because they are slender bodies with relatively large slenderness ratios, it is advantageous to use an accelerometer rather than a gyro, Because accelerometer impact resistance, quality and size are small. It is pointed out that in order to measure six ballistic parameters, at least six accelerometers are needed, but in order to improve the test accuracy, a measurement scheme with seven accelerometers, nine accelerometers and ten accelerometers is also proposed The solution to the data processing equation. In this paper, the limitations of the slender body model on the location of the accelerometer are also analyzed. The conditions for reducing the number of data processing equations, avoiding the pathological equations and optimizing the position of the accelerometer are proposed. The article also gives the experimental data processing method can get high precision.