3.5GHzQPSK调制信号数据集
收藏资源简介：
本数据集包含了通过软件无线电空口技术采集的4路QPSK RF信号数据，采用了4单元微带天线阵列进行信号的发射与接收。数据采集过程中，每组信号包括多个帧，每帧包含帧头、保护间隔、数据位和帧尾等结构内容。这些信号数据为3.5GHz QPSK调制信号，采集时间为2024年10月，采集地点为电子科技大学。信号数据是通过现场采集方式采集，利用微带天线的特殊采集技术结合软件无线电空口技术，在实际中对QPSK环境信号进行采集。通过信号采集，我们对采集到的QPSK信号进行了噪声抑制、同步校正、频率偏移修改等步骤，保证数据集的质量适合不同的无线通信算法测试、系统性能评估以及天线阵列配置优化等方面的研究。信号帧结构的优化还针对数据分析过程中特定信息的提取，提升了信号处理的效率和精度。该数据集的发布，旨在为从事通信系统、无线信号处理、阵列信号处理等领域的研究人员提供一种基于实际环境下的高质量QPSK信号数据支持，促进相关技术的研究和应用进展。
This dataset contains 4-channel QPSK RF signal data collected via software-defined radio (SDR) over-the-air technology, using a 4-element microstrip antenna array for signal transmission and reception. During data acquisition, each batch of signals comprises multiple frames, with each frame containing structural elements such as a preamble, guard interval, data bits, and postamble. The signal data are 3.5 GHz QPSK-modulated signals, collected in October 2024 at the University of Electronic Science and Technology of China (UESTC). These signals were acquired through on-site field measurements, leveraging specialized microstrip antenna acquisition techniques combined with SDR over-the-air technology to capture real-world environmental QPSK signals. Following data collection, we conducted post-processing procedures including noise suppression, synchronization calibration, and frequency offset adjustment on the captured QPSK signals, ensuring the dataset quality is suitable for research across various domains such as wireless communication algorithm testing, system performance evaluation, and antenna array configuration optimization. The optimized signal frame structure is also designed for specific information extraction during data analysis, improving the efficiency and accuracy of signal processing. The release of this dataset aims to provide high-quality real-world QPSK signal data support for researchers working in fields including communication systems, wireless signal processing, and array signal processing, thereby advancing the research and application of related technologies.
