时间聚焦可以提高通信系统的信噪比、克服复杂环境的多径衰落。

Temporal focus can depress the multipath effect and improve the signal noise rate (SNR) of the system.

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最后介绍了慢正电子束流空间聚焦和时间聚焦的模拟计算以及相应的装置调试。

At last, we introduce the simulation calculation about the spatial focusing and the time focusing of the slow positron beams and the debug of the corresponding subsystems.

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发现束流的空间聚焦调试结果较好，但时间聚焦的调试由于存在较大的噪声信号，因而很难进行。

After many debugs, we find the result of the spatial focusing is good, but, because of the large noisy signals, the time focusing process is hard to debug.

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