Comparison of a set of measured data to numerical computations of the backscattering coefficients for actual natural rough surface by the classical and new perturbation methods were given.
For the ballistic missile using perturbation guidance, the computation of partial derivative at shutdown point is very important for data calculation and validation.
对摄动制导的弹道导弹而言，关机点偏导数和全导数计算及其校验是导弹诸元计算中的重要环节。
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Parameters are evaluated by using an integral transform technique and a single perturbation technique. An improved method of moment is provided to treat experimental data.