SDR moonbounce signals at 1297MHz

This dataset contains recordings of a moon-bounce experiment performed on 2021-12-16 with the Dwingeloo Radio Telescope (operating under call sign PI9CAM). UHF signals were transmitted with the telescope, and their Moon echo was received about 2.5 seconds later. The signals were transmitted and received with an Ettus USRP B210. The data was converted to SigMF format. The metadata contains information on the device used to transmit and receive the signals, and about the modulation used. Signals were transmitted with a 210kHz offset. Apart from the recordings (filenames starting with 'camras-txrx'), which contain both the uplink and the downlink, also the original IQ files that were transmitted are included. The key 'camras:tx_file' in the metadata tells which file was transmitted. The absolute timestamps are not very well calibrated: the computer doing the recording was not synchronized. The timestamp in the filename represents the creation time of the file, the time in the metadata refers to the time of the first sample as reported by GnuRadio.本数据集收录了2021年12月16日使用德温格洛射电望远镜（呼号PI9CAM）开展的月球反射通信实验的录音数据。实验期间通过该望远镜发射特高频(UHF)信号，约2.5秒后即可接收到对应的月球回波。信号的收发均采用Ettus USRP B210设备完成。所有采集数据已转换为SigMF格式（SigMF）。元数据包含了信号收发所用设备以及所采用调制方式的相关信息。实验中信号以210kHz的偏移量进行发射。数据集除提供包含上行链路与下行链路全部数据、文件名以"camras-txrx"开头的录音文件外，还附带了原始发射的IQ文件。元数据中的"camras:tx_file"字段可指明所发射的对应文件。由于负责记录的计算机未进行时钟同步，绝对时间戳的校准精度有限：文件名所携带的时间戳为文件创建时间，而元数据内的时间戳则对应GnuRadio报告的首个采样点的时刻。