Burst-mode broadband data processing device and method based on FPGA chip

Abstract

The invention belongs to the application field of burst-mode wireless transmission, and discloses a burst-mode broadband data processing device and a burst-mode broadband data processing method based on an FPGA chip. The burst-mode broadband data processing device comprises a transmitting end data processing model and a receiving end data processing model, wherein the transmitting end data processing model at least comprises a data scrambling unit, a convolutional encoding unit, a baseband mapping unit, an inverse Fourier transformation unit, a peak-to-average ratio (PAPR) suppression unit, an interpolation unit and a digital up-conversion unit; and the receiving end data processing model at least comprises a digital down-conversion unit, an extraction unit, a frame header detection unit, a timing synchronization unit, a fractional frequency deviation estimation and compensation unit, a Fourier transformation unit, an integer frequency deviation estimation and compensation unit, a channel estimation and equalization unit, a de-mapping unit and a channel decoding and descrambling unit. The burst-mode broadband data processing device and the burst-mode broadband data processing method improve the burstiness processing of a high-speed wireless communication system, and reduce the complexity of hardware implementation.

Description

technical field [0001] The invention relates to the application field of burst mode wireless transmission, in particular to an FPGA chip-based burst mode broadband data processing device and method, and is especially suitable for high-speed, high-capacity wireless communication OFDM systems. Background technique [0002] With the maturity and development of communication technology, people's requirements for communication continue to grow. Large-capacity, high-speed broadband wireless communication technology has become an inevitable development of communication systems. The application of OFDM (Orthogonal Frequency Division Multiplexing) technology makes high-speed , Large-capacity communication becomes a reality. [0003] The working modes of modern wireless communication systems are divided into continuous broadcast mode and burst mode. The continuous broadcast mode system transmits continuous data. Initially, it takes a long period of time to obtain signals, and then con...

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Problems solved by technology

[0004] The processing speed of the continuous broadcast mode is slow and the processing time is too long, which cannot meet people's requirements for high-capacity and high-speed communication; the burst mode communication is widely used in high-speed, high-capacity communication systems, but there are some challenges to frequency offset and synchronization accuracy. Strict requirements, so it needs to be used according to the actual situation

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