I would like to design a noise shaping filter to shift the quatization noise to higher spectron . Currently , i found a lot of papar said i can use the SDM as Noise shaping filter but i dont fully understand because most of them are papers not enough detail and i wondeing is there another way to do this !
The following is some good book about sigma delta converter.
1.understanding sigma delta converter
2.sigma delte converter simulation/model
3.oversampled delta sigma converter.
Hi,
SDM increases the sampling rate and using a Delta modulator kind of structre reduces the quantization noise. However this comes with a price. You need to use more number of bits for representation. It is very expensive for communication receivers. I hope you have considered this.
B R
Madhukar
First you should understand the delta modulation.And then you will know why every one use noise shaping filter to shaping the quantization error to reach the requirement.