Terahertz High Speed Parallel Signal Processing Structure

With the gradual exhaustion of low frequency spectrum resources, the working frequency band of wireless communication is developing towards the terahertz frequency band, and communication rate is gradually increasing. Therefore, the physical layer digital baseband system is required to generate a larger bandwidth, higher-order modulation signal, and carry a higher amount of data. Due to the limitation of the operating frequency of the system core (such as FPGA), high speed signal processing mostly adopts multi-channel parallel processing. In the paper, a special parallel processing structure is designed for the difficulty of engineering realization of ultra-high bandwidth; then, the key scheme design in the transmitter and receiver is completed based on this structure.