The monkey tool runs in an adb shell directly on the device or emulator and generates pseudo-random streams of user and system events.

In this paper, isochronous service of Advanced Orbit System (AOS) is researched, and the possible schemes for implementing pseudo-random code ranging by using isochronous service of AOS are discussed.

The basic method of forecasting the tactical effects of position finding and firing system and a new method of generating pseudo random numbers using computer are introduced in brief.