Weak Signal Detection Based on Over-Sampling and Saw-Tooth Shaped Function

LI Gang; ZHANG Li-jun; LIN Ling; HE Feng

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Weak Signal Detection Based on Over-Sampling and Saw-Tooth Shaped Function

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- Weak Signal Detection Based on Over-Sampling and Saw-Tooth Shaped Function
- Acta Electronica Sinica Vol. 36, Issue 4, Pages: 756-759(2008)
- 作者机构：
  
  天津大学生物医学信息检测与处理实验室,天津,300072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP271+.81
- Published Online：25 April 2008，
  
  Published：2008
- 稿件说明：
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LI Gang, ZHANG Li-jun, LIN Ling, et al. Weak Signal Detection Based on Over-Sampling and Saw-Tooth Shaped Function[J]. Acta Electronica Sinica, 2008, 36(4): 756-759.
DOI：

LI Gang, ZHANG Li-jun, LIN Ling, et al. Weak Signal Detection Based on Over-Sampling and Saw-Tooth Shaped Function[J]. Acta Electronica Sinica, 2008, 36(4): 756-759. DOI：

摘要

为充分利用现有模数转换器的速度来提高检测微弱信号的能力和简化电路、降低成本

本文采用叠加成形函数的方法

利用过采样技术实现对微弱信号检测.分析结果表明

用常规中分辨率ADC直接采样就可达到与现有高分辨率ADC直接采样才有的高精度.

Abstract

In order to make use of the speed of analog to digital converter (ADC)

advance the ADC’s ability of measuring weak signal

predigest the circuit and reduce the cost

over-sampling were combined with the saw-tooth shaped function to detect the weak signal in this paper.The analysis shows that medium resolution ADC sampling straightly can achieve high precision which is acquired only by using high resolution ADC.

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