,其中岔(∞)=(2甚如fxy((∞to))),勉(∞)和如(∞)称为自谱 (auto-spectrum);/矗(∞)和^x(ccJ)称为交叉谱(cross—spectrum),通常具有复数形式: 靠(∞)一%(c£’)一i啄(∞),J,k=X,Y。
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自由光谱范围 free spectral range ; FSR
自闭症谱系障碍 ASD ; Autism Spectrum Disorder ; autism spectrum
亲自谱写之 last goodbye
自乘谱 auto spectrum ; auto ectrum
余振自谱分析 residual vibration auto-spectrum analysis
自然伽玛能谱测井仪 natural gamma spectromenter of logger
同时式自动光谱仪 meantime auto-spectrometer
自动双束谱仪 [物] automatic double spectrometer
但以往的谱估计都是采用互功率谱估计和高阶自谱估计的各种方法。
Spectral estimation always applies cross spectral theory and high order self spectral theory up to now.
再用最小二乘预测方法,通过剩余过程的相关函数,找到剩余过程的自谱及互谱。
Next, it finds out the spectra and cross-spectra of residual process by using least-square forecast procedure, through the correlation function of residual process.
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