I'm doing a lowpass fir equripple filter in matlab using simulink. My sine sources are 62.83 rads, 125.66 rads, 92.74 rads. In simulink how do you set it up to remove aliasing? By the way I'm sampling each sin wave at 1/50. Thank you. Also does normalizing remove aliasing? I'm very confused by the concept. Below are my block parameters.

Block Parameters: Digital Filter Design File Edit Analysis View Q [bo] -Current Filter Information- Magnitude Response (dB) Structure: Direct-Form FIR -20 Order: Stable: Source: 10 Yes Designed Magnitude (dB) -40 -60 -80 Store Filter ... 0 5 5 20 10 15 Frequency (Hz) Filter Manager ... Filter Order Magnitude Specifications Frequency Specifications Units: Hz Specify order: 10 Enter a weight value for each band below. Fs: Minimum order 50 Response Type Lowpass Highpass Bandpass Bandstop O Differentiator Design Method OIIR Butterworth Wpass: 1 Fpass: 0 Options Density Factor: Wstop: 1 20 Fstop: 24 FIR bar Equiripple Columns as channels (frame based) Design Filter Input processing: Loading filter ... Done UUUUIE Block Parameters: Digital Filter Design File Edit Analysis View Q [bo] -Current Filter Information- Magnitude Response (dB) Structure: Direct-Form FIR -20 Order: Stable: Source: 10 Yes Designed Magnitude (dB) -40 -60 -80 Store Filter ... 0 5 5 20 10 15 Frequency (Hz) Filter Manager ... Filter Order Magnitude Specifications Frequency Specifications Units: Hz Specify order: 10 Enter a weight value for each band below. Fs: Minimum order 50 Response Type Lowpass Highpass Bandpass Bandstop O Differentiator Design Method OIIR Butterworth Wpass: 1 Fpass: 0 Options Density Factor: Wstop: 1 20 Fstop: 24 FIR bar Equiripple Columns as channels (frame based) Design Filter Input processing: Loading filter ... Done UUUUIE