利用P波到时确定近震震源参数,文献[1]给出了一种迭代解法——循环优化迭代法。用这种方法对五个参数φ,λ,T_0,h,υ全面进行优化时,需要分别算出所得近似解的误差,只当它们全部满足精度要求时,才能做为我们所需要的近似解,否则,还要对不满足精度要求的量继续进行优化。如何计算所得近似解的误差,该文并没有真正解决这个问题。 Using P-wave arrival time to determine near-epicenter parameters, literature [1] gives an iterative solution-iterative optimization iteration method. When the five parameters φ, λ, T_0, h, υ are fully optimized in this way, the errors of the approximate solutions need to be calculated separately. Only when all of them satisfy the accuracy requirements can we be the approximate solution we need, Otherwise, continue to optimize the amount that does not meet the accuracy requirements. How to calculate the error of the approximate solution, this article does not really solve this problem.