Distortion is a technical indicator in the field of common voice signal processing.The design is a portable distortion degree tester,based on Field-Programmable Gate Array(FPGA,EP2C20)as the core,using harmonic analysis method which better solve the distortion problem of accuracy.It can achieve the signal transformation from the time-domain to the frequency-domain,and is widely used for signal spectrum analysis.All the components used in the design are low power,high performance,low drift and industrial grade components.The reference voltage sources of ADC and DAC have identical performance of high stability,high precision.The clock is the precise stable clock with FPGA temperature compensation.This project can get the cost-effective,high-precision,low power and portable design goals.
展开▼
