The time-delay parameter test of time relay, SCM test block diagram and software flow chart are introduced.
介绍时间继电器延时参数的测试，单片机测试框图以及软件流程。
2
Second, channel estimation algorithms of two-hop OFDM cooperative communication system with single relay are discussed, which are mainly based on block pilot.
其次，讨论了两跳单中继多载波协同通信系统的信道估计的问题，主要是基于辅助块状导频的方法；
3
Based on the analysis of the all relay semiautomatic block which are widely used, this paper discusses the feasibility of the semiautomatic block with microcomputer.