Terahertz high-speed communication transmitting mechanism frame and ultra-wideband signal processing method

Abstract

The invention discloses a terahertz high-speed communication transmitting mechanism frame and an ultra-wideband signal processing method, the frame comprises a baseband part and a radio frequency part, the baseband part comprises an algorithm-level fully-parallel digital modulation frame, a DAC and a low-pass filter, and the radio frequency part comprises an orthogonal harmonic mixer; the ultra-wideband signal processing method is carried out based on the terahertz high-speed communication transmitting mechanism frame. According to the terahertz high-speed communication transmitting mechanism frame, the speed limit of an FPGA device is broken through, the signal processing speed is greatly improved with few hardware resources under the low device clock frequency, the algorithm hardware implementation problem under the high transmission capacity is solved, the sampling rate requirement of a DAC is lowered, and meanwhile compared with a traditional secondary frequency conversion structure, the transmission efficiency of the terahertz high-speed communication transmitting mechanism frame is greatly improved. According to the invention, the frequency of the signal can be converted to the terahertz frequency band only through one-time frequency conversion, thereby reducing the loss of multiple times of frequency conversion, and improving the transmission quality of the radio-frequency signal.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a frame of a terahertz high-speed communication transmitter and an ultra-wideband signal processing method. Background technique [0002] With the development of science and technology, high-speed wireless transmission anytime and anywhere has become an urgent need for people. my country's 5G technology is being implemented intensively, and 6G technology is also kicking off. At present, the peak communication rate of 5G technology has approached 10Gbps, and the working frequency band is the millimeter wave frequency band, while 6G technology is aimed at 10-100Gbps, so the terahertz frequency band will become one of the best spare frequency bands for 6G technology. [0003] At present, in the realization of high-speed wireless communication methods in the terahertz frequency band, there are on-off keying (OOK) analog low-order modulation implementation methods and...

AI Technical Summary

Problems solved by technology

[0003] At present, in the realization of high-speed wireless communication methods in the terahertz frequency band, there are on-off keying (OOK) analog low-order modulation implementation methods and quadrature amplitude (Quadrature Amplitude Modulation, QAM) type digital modulation implementation methods. These two methods All are affected by various factors such as devices, and mostly modulate low-order numbers such as QPSK and 16QAM, and the spectrum utilization rate is low

In QAM type modulation, the architecture of the communication transmitter is usually to convert the IQ signal into an intermediate frequency signal in the digital domain, and then send it to the analog mixer after passing through the digital-to-analog converter (DAC), and then pass the signal after being modulated to the target frequency. The antenna transmits out. Although this architecture has been widely used at present, when the communication rate is required to be high, especially when the transmission is above 10Gbps, this architecture is no longer applicable due to the inability to find a DAC that meets the requirements.

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