Device and method for processing phase noise data stream based on fpga

Abstract

The invention discloses an FPGA-based phase noise data flow processing device and method. The device includes a data processing module, a clock management module, a control module, a data flow control module and an FFT module; the data processing module includes a multi-stage decimation filter unit, The input phase noise signal is extracted and filtered to generate multi-level phase noise data streams with different sampling rates; the clock management module is used to generate the clock signals required by the decimation filter units at all levels; the control module is used to generate reset signals for controlling the decimation filter units at all levels ; The data flow control module is used to adjust the data length and clock frequency of each level of phase noise data flow input to the FFT module; the FFT module is used to calculate the frequency domain information of each level of phase noise data flow. The invention realizes the design of extraction filtering and data processing inside the FPGA, improves the processing speed of phase noise data, reduces the delay in the data transmission process and the possibility of transmission errors, and reduces the system complexity 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

Images