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本文叙述了测量阶跃脉冲垂直磁场和水平磁场渗透hl - 1装置各种比例导体壳时间常数的方法。
The method for measuring the penetration time constant of a step vertical or horizontal magnetical field through a resistive conducting shell is described.
实验中进行了激发震源实验，激发震源采用的是阶跃脉冲和窄方波脉冲，结果表明前者所获资料的分辨率较高；
Shooting experiments on step pulse and burst square pulse show that the data generated by the former has higher resolution.
对IIR的脉冲响应不变法、阶跃响应不变法、双线性变换法和直接设计法进行研究，得出IIR难以满足要求的结论。
For IIR, after researching Pulse Response Method, Step Response Method, Bilinear Transform Method, Direct Design Method, it is found that IIR is unsatisfactory.
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