基于X射线的空间语音通信系统

A space audio cummunication system based on X-ray

提出了栅控X射线源作为发射器和基于微通道板的X射线单光子探测器作为接收器的X射线通信方案.搭建了基于X射线的空间语音通信系统,详细介绍了信号调制发射器、基于微通道板的X射线单光子探测器及信号接收解调器的设计及工作原理.报道了基于X射线的空间语音通信系统的初步实验结果,实现了优于20kbit/s的基于语音信号调制的X射线通信.实验分析了在不同X射线强度、信号整形时间和阈值设置下通信性能影响,得出了X射线发射功率限制X射线通信速率的结论,提出了下一步提高X射线通信性能的改进方案.

In this paper, an X-ray communication program, which consists of a sender of grid controlled X-ray source and a receiver of X-ray single-photon detector based on micro-channel plate, is presented. With the detailed information about the signal modulation transmitter, the micro-channel-based X-ray single-photon detector as well as the signal receiving demodulator, a space audio communication system based on X-ray is built. The communication rate of more than 20 kbit/s is realized. According to the preliminary test result analyses of the X-ray space audio communication system test, the X-ray emission success rate restricts the communication speed by the influence of different X-ray intensities, signal shaping time and threshold settings respectively. Therefore, a scheme for further increasing X-ray communication performance is suggested.