analog correlator meaning in English

模拟相关函数分析仪
模拟相关器

Abstract : a noise model for the analog correlator used in the ultra wideband receivers is proposed due to lack of simulation capability on noise performance of the correlator in current eda tools . the analog correlator circuit is divided into several parts to calculate the equivalent noise sources respectively . the ideal impulse generators , instead of the noise sources , are then applied to obtain the time varying transfer functions . fourier transforms are carried out to explore the relationship between the noise input and output in frequency domain for each part . then the symmetrical noise sources are grouped together and the periodicity of the circuit is utilized to further simplify the model . this model can be used to evaluate noise performance of the correlator
文摘:给出了分析模拟相关器的噪声模型.将相关器分成不同的几个子模块后,对各模块分别计算等效噪声源.然后用理想脉冲源代替噪声源计算电路的时变传输函数,接着用傅里叶变换计算输入输出的频域关系.利用电路的对称结构合并对称的子模块可以进一步简化模型.该模型可以用来估计相关器的噪声性能