Phase noise data stream processing device and method based on FPGA

Abstract

The invention discloses a phase noise data stream processing device and method based on an FPGA. The device comprises a data processing module, a clock management module, a control module, a data stream control module and an FFT module. The data processing module comprises a multi-stage extraction filtering unit for extracting and filtering an input phase noise signal to generate multi-stage phasenoise data streams with different sampling rates; the clock management module is used for generating clock signals required by each stage of extraction filtering unit; the control module is used forgenerating a reset signal for controlling each stage of extraction filtering unit; the data flow control module is used for adjusting the data length and the clock frequency of each stage of phase noise data flow input into the FFT module; and the FFT module is used for calculating frequency domain information of each stage of phase noise data stream. According to the invention, the design of extraction filtering and data processing is realized in the FPGA, the processing speed of the phase noise data is improved, the delay in the data transmission process and the possibility of transmission errors are reduced, and the system complexity is reduced at the same time.

Description

technical field [0001] The invention belongs to the technical field of phase noise data processing, and in particular relates to an FPGA-based phase noise data stream processing device and method. Background technique [0002] Phase noise is an important index to describe the frequency stability of a clock signal, and it is of great significance to signal analysis and testing. With the rapid development of high-tech such as electronic circuit technology, the measurement accuracy requirements of electronic systems are getting higher and higher, and the demand for high-performance signal generators is also increasing day by day, and the phase noise indicators of high-quality signals are also getting smaller and smaller. The accuracy and measurement difficulty are also increasing. Phase noise plays an important role in electronic systems, and poor phase noise often greatly affects the stability of equipment, thereby increasing equipment maintenance costs. Phase noise research...

AI Technical Summary

Problems solved by technology

The data transmission process of the traditional solution is complex, the calculation speed is slow, and it is difficult to implement

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