天波传播特性数据库

该组数据库基于当前建立的短波网络进行周期性的数据发送和接收建立，根据接收台站分为五个数据库，分别为重邮站、荣昌站、万州站、酉阳站、城口站数据库，当前总数据量为12GB。数据库以原始的PCM数据采集并存储，数据库中存储的相关的基础信息包括数据采集时间、通道数、持续时间、接收频率等。该数据库的数据通过对应的算法分析，可以获取对应地点、对应时间的天波传输特性，包括频偏、扩展、多径等天波信道特性，能够用于短波基带算法的设计、天波长短期预测算法的性能验证、天波选频算法的有效性验证、可以作为多通道多台站联合天波信道预测的训练数据和验证数据等多个方向。

This database suite was established based on periodic data transmission and reception over the currently deployed shortwave network. It is categorized into five databases according to the receiving stations: Chongyou Station, Rongchang Station, Wanzhou Station, Youyang Station and Chengkou Station. The total current data volume amounts to 12 GB. The database collects and stores raw PCM data, and the stored basic information includes data collection time, number of channels, signal duration, receiving frequency and other relevant parameters. By analyzing the data in this database with corresponding algorithms, the sky-wave transmission characteristics of corresponding locations and times can be obtained, including key sky-wave channel properties such as frequency offset, signal spreading and multipath effects. This database can be applied to multiple research and engineering scenarios, including the design of shortwave baseband algorithms, performance verification of long-term and short-term sky-wave prediction algorithms, effectiveness validation of sky-wave frequency selection algorithms, as well as serving as training and validation data for multi-channel and multi-station joint sky-wave channel prediction tasks.

搜集汇总

背景与挑战

背景概述

天波传播特性数据库是一个包含五个接收台站数据的短波传输特性数据库，总数据量为12GB，以PCM格式存储。该数据库可用于分析天波信道特性，支持短波基带算法设计、天波预测算法验证等多个研究方向。