论文标题
星际通信中的符号重复：方法和观察
Symbol repetition in interstellar communications: methods and observations
论文作者
论文摘要
可发现的星际通信信号有望表现出至少一个与随机噪声明显不同的信号特征。提出了一个假设，即接收到的射电望远镜可能包含传输的delta-t delta-f相反的圆极化脉冲对，传达了信息内容和发现方法的组合，包括符号重复。假设信号是使用26英尺直径射电望远镜，选定的匹配滤波器接收器和机器后处理系统实验测量的。预计测量值将通过添加剂白色高斯噪声模型来解释，以减少射频干扰。此外，在长期实验中，预计测量值将在正确的提升范围内没有显着差异。本文描述的假设和实验方法基于以前报道的多个射电望远镜Delta-t Delta-F极化脉冲对实验。 （Ref。Arxiv：2105.03727，Arxiv：2106.10168）。在当前的工作中，在143天的实验中，右提升滤波器在0至6.3小时范围内跨越21个0.3小时的右升箱。测量和分析明显的符号重复。 5.25 plus或负0.15小时右升升，-7.6度加或负1度偏斜的天体方向与以前的工作中的异常观察有关，并继续呈现异常，原因是未知的原因。
Discoverable interstellar communication signals are expected to exhibit al least one signal characteristic clearly distinct from random noise. A hypothesis is proposed that radio telescope received signals may contain transmitted delta-t delta-f opposite circular polarized pulse pairs, conveying a combination of information content and discovery methods, including symbol repetition. Hypothetical signals are experimentally measured using a 26 foot diameter radio telescope, a chosen matched filter receiver, and machine post processing system. Measurements are expected to present likelihoods explained by an Additive White Gaussian Noise model, augmented to reduce radio frequency interference. In addition, measurements are expected to present no significant differences across a population of Right Ascension ranges, during long duration experiments. The hypothesis and experimental methods described in this paper are based on multiple radio telescope delta-t delta-f polarized pulse pair experiments previously reported. (ref. arXiv:2105.03727, arXiv:2106.10168). In the current work, a Right Ascension filter spans twenty-one 0.3 hour Right Ascension bins over a 0 to 6.3 hr range, during a 143 day experiment. Apparent symbol repetition is measured and analyzed. The 5.25 plus or minus 0.15 hr Right Ascension, -7.6 degree plus or minus 1 degree Declination celestial direction has been associated with anomalous observations in previous work, and continues to present anomalies, having unknown cause.
