Generation and Pulse Compression of P4 Polyphase Codes, Generation and Autocorrelation Output of Complementary Codes

In this work, we have successfully implemented the generation of P4 polyphase codes and complementary codes, along with their corresponding pulse compression and autocorrelation outputs. The implementation involved key algorithmic approaches including phase sequencing for P4 code generation using mathematical formulations based on discrete phase shifts, and complementary code pairs generation through orthogonal sequence combinations. For pulse compression processing, we employed matched filter techniques with optimized convolution operations to achieve superior sidelobe suppression. The autocorrelation analysis was performed using efficient cross-correlation algorithms with windowing functions to minimize computational complexity. These achievements enable deeper exploration and understanding of coding techniques in modern communication systems, while providing broader possibilities for future research and development. Throughout the process, we adopted a series of experimental and testing methodologies to ensure result accuracy and reliability, continuously optimizing and improving methods through practical implementation. These accomplishments not only contribute significantly to academic research but will also help advance the development and application of communication technologies.