Portable Distortion Degree of Measuring Apparatus

作     者：王鑫 吕常智 王德勇 

作者机构：College of Information and Electrical EngineeringShandong University of Science and Technology 

出 版 物：《Journal of Measurement Science and Instrumentation》 (测试科学与仪器（英文版）)

年 卷 期：2011年第2卷第1期

页      码：78-80页

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

主 题 词：distortion degree FPGA measuring apparatus 

学科分类：08[工学] 080401[080401] 0804[工学-材料学] 080402[080402] 

D　O　I：10.3969/j.issn.1674-8042.2011.01.20

馆 藏 号：203724904...