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深空探测的发展对信噪比的要求越来越高,异地天线组阵利用现有天线设施合成信号,显著提高信号SNR。针对异地天线组阵基线长、钟差大和信号到达时间不一致等特点对异地天线组阵信号合成效率的影响,结合现有集群结构的性能,给出天线组阵信号合成并行算法与Sumple算法相结合的处理方案,并在计算仿真中心上实现4路组阵信号全频谱合成,理论上有6 dB的增益。
The development of deep space exploration has a higher and higher requirement on signal-to-noise ratio. The remote antenna array synthesizes the signal by using the existing antenna facilities, thereby significantly improving the signal SNR. According to the influence of long base line length, large clock error and different signal arrival time on the signal synthesis efficiency of the remote antenna array, combining with the performance of the existing cluster structure, the paper presents the parallel combination of the antenna array signal synthesis algorithm and the Sumple algorithm Of the processing program, and in the simulation center to achieve four-way array signal full-spectrum synthesis, in theory, 6 dB gain.