There is a big difference between the turning control technology for four rocket pulse engines and other turning control technologies for vertical soft launched missiles. In view of this problem， the turning segment line motion equation， the attitude motion equation， and the turning information equation of the missile were established in this paper. The turning time sequence was designed， and a turning control strategy was designed by introducing the prediction model and the corresponding criterion. Based on the strategy， the parameter matching research was carried out. Finally， a large range of adjustment of the missile axis was realized by a simple device. A simulation example was given to verify the effectiveness of the proposed parameter matching relationship and the turning control strategy.

An estimation method based on the principle of the “miss distance tube” is proposed to obtain the practical miss distance of anti-aircraft missiles under low-precision measurement conditions of tests. The specific algorithms and examples are illustrated for the optical measurement data and Doppler frequency telemetry data. The results of examples show that the proposed method can produce a high-precision miss distance under low-precision measurement conditions， which is an effective means of using optical measurement data to estimate the miss distance. The proposed method has significant advantages and can better estimate the miss distance under the unknown relative velocity of the missile and the target. The method features simple and rapid algorithms， high precision， and good engineering applicability.