| 引用本文： |
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万芷君,明媚,王婷,栗丽兵.基因预测中的信噪比计算新模型[J].广西科学院学报,2013,29(1):11-13,16. [点击复制]
- WAN Zhi-jun,MING Mei,WANG Ting,LI Li-bing.Calculation of Signal-to-Noise Ratio in Gene Prediction[J].Journal of Guangxi Academy of Sciences,2013,29(1):11-13,16. [点击复制]
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| 摘要: |
| 以快速傅立叶变换(FFT)求出DNA序列功率谱后,用重复计算实验的办法,对大量DNA序列中核苷酸的分布情况进行统计,得出综合考察变量,然后以核苷酸分布频数和DNA序列长度为自变量,建立Z-curve映射规则得到DNA序列信噪比的新模型,并进行实例分析。新模型不需要对序列进行离散Fourier变换(DFT),而且不要求DNA指示序列长度必须为3的倍数,应用范围更大。 |
| 关键词: 信噪比 基因预测 数字映射 功率谱 |
| DOI： |
| 投稿时间：2012-12-20修订日期：2013-01-08 |
| 基金项目: |
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| Calculation of Signal-to-Noise Ratio in Gene Prediction |
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WAN Zhi-jun, MING Mei, WANG Ting, LI Li-bing
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| (School of Computer Science and Engineering of Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China) |
| Abstract: |
| Fast Fourier Transform (FFT) was used to get the power spectrum.By means of repeating computational experiments,the distribution frequency of nucleotides distribution was statistically analyzed in a large number of DNA sequences to get a aggregate variable.Then let the distribution frequency and the length of the DNA sequence be the independent variable,the SNR under Z-curve was calculated to establish the new model, which avoids the constraints of DNA sequence length and Discrete Fourier Transform (DFT) in traditional methods,so it's easy to popularize. |
| Key words: signal-to-noise ratio gene prediction digital mapping power spectrum |
