基于<strong>ICA</strong>的引潮力互相关谱分析

基于ICA的引潮力互相关谱分析

邢德钊, 全海燕

Independent Component Extraction and Cross-correlation Spectrum Analysis of Gravity Tide Signal

Dezhao Xing, Haiyan Quan

表1 y ₁ ( t ) , y ₂ ( t )和 y ₃ ( t )的自相关谱分析

Table 1 Autocorrelation spectrum analysis of y ₁ ( t ) , y ₂ ( t ) and y ₃ ( t )

乘性调制频率/Hz	解调对应的潮汐谐波频率/Hz	潮汐谐波频率理论计算值/Hz
$f_{11} = 2.411 \times 10^{- 7}$ $a_{11} = 1.777 \times 10^{- 7}$	$F_{1} = f_{11} + a_{11} = 4.188 \times 10^{- 7}$	$4.2004 \times 10^{- 7}$
	$F_{2} = f_{11} - a_{11} = 6.34 \times 10^{- 8}$	$6.3377 \times 10^{- 8}$
$f_{12} = 4.569 \times 10^{- 7}$ $a_{12} = 3.934 \times 10^{- 7}$	$F_{3} = f_{12} + a_{12} = 8.503 \times 10^{- 7}$	$8.4725 \times 10^{- 7}$
	$F_{4} = f_{12} - a_{12} = 6.35 \times 10^{- 8}$	$6.3377 \times 10^{- 8}$
$f_{13} = 6.345 \times 10^{- 7}$ $a_{13} = 2.157 \times 10^{- 7}$	$F_{5} = f_{13} + a_{13} = 8.502 \times 10^{- 7}$	$8.4725 \times 10^{- 7}$
	$F_{6} = f_{13} + a_{13} = 4.188 \times 10^{- 7}$	$4.2004 \times 10^{- 7}$
$f_{21} = 2.275 \times 10^{- 5}$ $a_{21} = 3.934 \times 10^{- 7}$	$F_{7} = f_{21} + a_{21} = 2.3143 \times 10^{- 5}$	$2.3148 \times 10^{- 5}$
	$F_{8} = f_{21} - a_{21} = 2.2357 \times 10^{- 5}$	$2.2364 \times 10^{- 5}$
$f_{31} = 1.157 \times 10^{- 5}$ $a_{31} = 3.807 \times 10^{- 8}$	$F_{9} = f_{31} + a_{31} = 1.1608 \times 10^{- 5}$	$1.1606 \times 10^{- 5}$
	$F_{10} = f_{31} - a_{31} = 1.1532 \times 10^{- 5}$	$1.1542 \times 10^{- 5}$
$f_{32} = 1.118 \times 10^{- 5}$ $a_{32} = 4.188 \times 10^{- 7}$	$F_{11} = f_{32} + a_{32} = 1.1599 \times 10^{- 5}$	$1.1606 \times 10^{- 5}$
	$F_{12} = f_{32} - a_{32} = 1.0761 \times 10^{- 5}$	$1.0759 \times 10^{- 5}$
$f_{33} = 1.115 \times 10^{- 5}$ $a_{33} = 3.934 \times 10^{- 7}$	$F_{13} = f_{33} + a_{33} = 1.1543 \times 10^{- 5}$	$1.1542 \times 10^{- 5}$
	$F_{14} = f_{33} - a_{33} = 1.0757 \times 10^{- 5}$	$1.0759 \times 10^{- 5}$