Multiplier is the circuit which is conformed of nonlinear elements and can make two signal multiplied so that it can implement frequency transformation.
相乘器是由非线性元件组成，可以实现两个信号的相乘，完成频率变换的电路。
The principles of laser frequency transformation and the theory of phase matching in nonlinear optic crystals are also discussed. Based on this theory, Angle of phase match is calculated.
在总结激光频率变换的原理和非线性光学晶体的相位匹配理论的基础上，可以根据相位匹配理论进行晶体的相位匹配角的计算。
The model combines good time domain, frequency domain resolving ability of wavelet transformation and nonlinear learning ability of SVM.
该模型具有小波变换的良好时、频域分辨能力和支持向量机的非线性学习能力；
The model combines good time domain, frequency domain resolving ability of wavelet transformation and nonlinear learning ability of SVM.
该模型具有小波变换的良好时、频域分辨能力和支持向量机的非线性学习能力；
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