RFID系统的IEEE的文章，安全协议，认证- In this paper, we first propose a cryptographic authentication protocol which meets the privacy protection for tag bearers, and then a digital Codec for RFID tag is designed based on the protocol. The protocol w

自己编写的GNSS信号捕获、跟踪算法，使用了fftw库进行傅里叶变换(I have written GNSS signal capture and tracking algorithm, using the fftw library for Fourier transform)