RF Signal Superposition for Spectral Efficiency and Security

The patent introduces a new dimension to communication by transmitting multiple signals simultaneously at the same frequency and time through signal superposition. Instead of increasing modulation order along a single dimension, the system adds temporal and spectral layers, enabling multiple data streams to occupy the same frequency band without mutual interference, thereby突破ing the Shannon limit constraints

The patent employs signal cancellation techniques as an intermediary mechanism to manage interference. The receiver generates cancellation signals that counteract the interference from simultaneously transmitted signals, allowing multiple signals to coexist in the same frequency band. This intermediary cancellation process enables the system to achieve high capacity without the harmful effects of mutual interference

The patent uses signal superposition to create a composite signal that combines multiple data streams. The legitimate receiver can separate and decode these signals using signal cancellation techniques, while unauthorized observers see only a complex composite signal that appears as noise. This copying and superposition approach maintains high data rates while providing inherent security through signal obfuscation in contested environments