how to simulate a sigma-delta modulator with Matlab&#653

how to simulate a sigma-delta modulator with Matlab or other simulation tool in systtem level?

can anyone tell me which took usually is used to design sigma-delta modulator in system level.

thanks !

Hi this is Gautam here, You can create instantaneous modulator withthe help of SIMULINK library blocks and components.

Only you need to take yourself deep into basics of Sigma-delta modulator, how it performs to realworld signal, what is the order i need for favourable FFT analysis etc.

if you have this much details then you can easily build your model and simulate it by selecting specific solver.