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Abstract
与传统无线通信相比, 深空通信由于传输损耗巨大、探测器能量受限且轨道多变等因素, 须解决信噪比(Signal to Noise Ratio, SNR)极低、数据接收不连续及信道参数多变等难题. 针对这些问题, 论述了在深空探测极低SNR下需重点研究的深空天线组阵、编码与调制、联合解调译码、喷泉码以及其自主无线电实现等关键技术, 以有效协助解决上述深空通信难题. 同时, 讨论了这些关键技术的发展趋势及其在未来深空通信中的应用.
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