另外,一些环境因素和性别、饮食等因素都会影响分析结果,故需要采用滤噪技术,如正交信号校正(orthogonal signal correction),同时采用更为复杂的分析方法,如偏最小二乘法、判别分析(PLS-DA)和人工神经网络。
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种正交信号校正 Orthogonal Signal Correction ; OSC
的正交信号校正 orthogonal signal correction ; OSC
如正交信号校正 orthogonal signal correction ; OSC
正交信号校正技术 orthogonal signal correction
它将正交信号校正方法 Orthogonal signal correction
常用正交信号校正技术 OSC ; orthogonalsignal correction
将正交信号校正方法 orthogonal signal correction ; OSC
进行正交信号校正 OSC ; orthogonalsignal correction
研究结果表明,原始光谱经均值中心化、一阶微分和正交信号校正预处理后,运用多元线性回归法所建葡萄糖和果糖定量分析模型最优。
The MLR mathematical model that established with orthogonal signal correction plus first derivative and mean centre preprocessed spectra shows the best result for glucose and fructose.
利用在接收机输入端加入测试信号,基于统计平均的思想求出所需要的校正系数,然后实现正交解调误差的校正。
Correction coefficients can be received based on statistic average when importing a test signal. Then quadrature demodulation errors are realized.
提出了一种将正交调制LFM信号产生系统的幅相误差映射到基带后,在数字域利用复系数FIR滤波器进行校正的方案。
The errors are classified according to their frequency. The amplitude and phase errors of the LFM signal generators using quadrature modulation technology are mapped into baseband.
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