SSB (Single Sideband) Modulation and Demodulation

This article discusses Single Sideband (SSB) modulation and demodulation technology, a technique widely used in radio and communication fields. SSB modulation allows signal transmission using significantly reduced bandwidth by eliminating one sideband and suppressing the carrier wave. At the receiver end, demodulation techniques reconstruct the original signal through methods such as coherent detection or envelope detection. From an implementation perspective, SSB modulation can be achieved using the Hilbert transform method in digital signal processing, where the analytic signal is created by combining the original signal with its Hilbert transform to generate the single sideband. This technology has been proven to improve spectrum utilization efficiency, enabling more information transmission within the same timeframe. Furthermore, SSB modulation enhances signal transmission distance and reliability by reducing noise and interference during signal propagation. Consequently, this technology finds extensive applications in modern communication systems, including broadcast television, satellite communications, mobile communications, and aerospace systems. In programming implementations, key functions would involve digital filter design for sideband suppression, carrier synchronization algorithms, and phase recovery mechanisms for proper demodulation.