高精度相位测量使用减少正弦和余弦表

6th IEEE Conference Record., Instrumentation and Measurement Technology Conference Pub Date : 1989-04-25 DOI:10.1109/IMTC.1989.36857

S. Mahmud

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引用次数: 17

摘要

作者提出了一种基于微处理器的高精度相位测量技术的硬件实现。硬件实现需要两个简化表:一个正弦表和一个余弦表。如果每个表有(i(i+5)/2)个条目，那么即使信号被2次到1次谐波范围内的任意数量的谐波失真，也可以准确地确定相位。这种设计可以很容易地制造出一个28针的定制VLSI芯片。

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High precision phase measurement using reduced sine and cosine tables

The author proposes a microprocessor-based hardware implementation of a high-precision phase measurement technique. The hardware implementation requires two reduced tables: a sine table and a cosine table. If each table has (i(i+5)/2) entries, then the phase can be accurately determined even if the signals are distorted by any number of harmonics in the range of 2nd through ith harmonics. This design could easily be fabricated to make a 28-pin custom VLSI chip.<>

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6th IEEE Conference Record., Instrumentation and Measurement Technology Conference

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