Space equipment maintenance support is the core of space equipment support activities， the effectiveness of maintenance support directly affects the achievement of space equipment support tasks and expected combat objectives. With the subtle transformation of battlefield morphology and situation， the position of aerospace equipment in integrated joint operations is becoming increasingly prominent， fast response guarantee， agile guarantee， precise guarantee， and uninterrupted guarantee have become major issues that urgently need to be broken through and solved. This article takes the maintenance and support chain of aerospace equipment as the starting point， on the basis of its concept， explain its characteristics， and based on platform element integration， business process planning and other logical frameworks， as well as analogy model methods， constructing a maintenance and support chain model for aerospace equipment. The research content provides a research approach for improving the maintenance support capabilities of aerospace equipment， at the same time， for the construction of maintenance and support forces in other branches of the military， and the integrated and unified construction of joint operations has a guiding role and reference basis.

In view of the effect of different prograde and retrograde rendezvous modes on miss distance， the vehicle terminal guidance rendezvous process is modeled and analyzed based on the theory of adjoint method. The original model of the terminal guidance problem is established， and the adjoint model of the problem is established based on the adjoint method. Normalized analytical expressions for the influence of factors such as target maneuver and initial heading error on miss distance were obtained. Based on the above theoretical analysis， the characteristics of reverse orbit head-on rendezvous， pursuit following orbit rendezvous and forward following orbit rendezvous are summarized.

To the problem of several radars tracking several targets in ballistic missile defense, the cooperative detection task programming of multi sensor is investigated. Several chronological detection tasks are derived according to forecasted trajectories of targets. In each task, the optimal resource assignment of multi sensor is described by a 0-1 integer programming program. A cooperative detection scheme is obtained by solving all the problems. The constraints of detection capability and cooperative detection modes are observed. The task programming is demonstrated based on a hypothetical scenario of ballistic missile defense. The rational cooperative detection schemes are programmed. And several targets are tracked continuously and stably at various cooperative detection modes.