China New TT&C System
Shi Changjie (China Aerospace Science and Technology Group Corporation, Beijing 100830, China )
This paper has introduced a new chinese TTC system. This system includes telemetry, remote control, orbit measurement sub-systems. It has passed Reception Appraisal Meeting and got higher level appraisal. It can be used under mirror reflection enviroment condition to overcome the multipath fading effect of low height flight target and can stable capture track target with high reliability. It also (cont. on p. 93) (cont. from p. 66) may be used for other conditions. This paper has introduced the principle of operation with the brief block diagrams. It introduces the technical features which includes the methods to overcome the multipath fading, the methods to get high reliability. This system is very flexible and may be suitable to other enviroment conditions. On the target there is a transponder. This transponder has overcome the difficulty of high level and low level signals transmitting over the same channel. This transponder has used many technologies to reduce diamension and it has overcome the low phase noise problem of crystal. This system has used new open feature telemetry system. In this paper has given important data of transmission channel. At the end of this paper it has given: the end user test result, the appraisal of the Receiption Appraisal Meeting. This system is the highest level system of the same kind low angle receiving system in China.