Fundamental Modules of Spread Spectrum Communication Systems

In this article, we provide a comprehensive examination of fundamental modules in spread spectrum communication systems. First, we focus on the anti-interference performance of spread spectrum technology, covering methodologies to counteract various interference sources and enhance communication quality. Implementation typically involves pseudo-random sequence generation using Linear Feedback Shift Registers (LFSRs) and correlation-based detection algorithms to mitigate narrowband and broadband interference. Second, we explore the low probability of detection (LPD) characteristics, addressing techniques to reduce false detection rates and missed detection probabilities through spectral spreading algorithms and power control mechanisms. Key functions include waveform masking using direct-sequence spread spectrum (DSSS) coding and frequency-hopping patterns. Finally, we conduct performance simulations using MATLAB/Simulink models to validate discussed metrics through experimental data, including bit error rate (BER) calculations under jamming scenarios and detection probability analysis. These detailed analyses and simulation results provide deeper insights into spread spectrum communication principles and practical applications.