The techniques of multi-computer redundancy are important techniques to guarantee the dependable running of TT&C computer application system.
多机冗余技术是保障测控计算机系统可靠运行的重要技术。
As the PN-code high performance of long period and the coherence, the very long distance and high precision ranging can be reached at the same time. Multi-target TT&C can be reached by CDMA of PN.
由于伪随机码固有的测距能力——其长周期和互相关特性，使得在测距距离和精度方面可以同时提高，采用码分多址技术可以实现对多个目标同时进行测控。
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