刚开始接触ADC，3阶，过采样64,1位量化的模型，效果很差，请各位给些改进建议。

suken · 发表于 2013-9-26 16:47:35

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如题，三阶离散一位量化ADC。求建议。感激。

feynmancgz · 发表于 2013-9-26 16:53:28

Architecture is OK, but the spectrum seems very bad.
I think you should change the integrator coefficients.

suken · 发表于 2013-9-26 17:02:04

回复 2# feynmancgz
I have calculated several times about the coefficients compared with the outcome H(z) from Matlab. Is there any possibility that the simulation .m file does not fit with my architecture for I only change the parameter such as the order, osr. I do not well understand the file which I borrowed from others.

feynmancgz · 发表于 2013-9-26 19:34:35

回复 3# suken

Maybe, It's possible

suken · 发表于 2013-9-26 21:04:49

回复 4# feynmancgz

thanks

huasheng2008 · 发表于 2013-10-12 09:14:01

回复 1# suken

三阶及以上1bit 量化很容易产生量化器过窄，请尝试减小输入信号幅度或改为多bit 结构。

suken · 发表于 2013-10-16 19:57:37

回复 6# huasheng2008
thanks i will try again

[求助] 刚开始接触ADC，3阶，过采样64,1位量化的模型，效果很差，请各位给些改进建议。

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