i need MATLAB CODE also

8. Design an analog modulator [sm]=modulation(m,fc.mtype)" which modulates analog message signal "m to produce modulated signal sm". "fc" denotes carrier frequency. Modulation type can be selected via "mtype" as dsb', 'dsbsc' or 'ssb', 'fm. b. an analog demodulator "[sc]=demodulation(sm,fc.dtype)" which demodulates modulated signal "sm to reproduce message signal "sd". Demodulation type can be selected via dtype" as 'coh', 'env' or 'pll' which stands for coherent detector and envelope detector or and phase-locked loop respectively. 8. Design an analog modulator [sm]=modulation(m,fc.mtype)" which modulates analog message signal "m to produce modulated signal sm". "fc" denotes carrier frequency. Modulation type can be selected via "mtype" as dsb', 'dsbsc' or 'ssb', 'fm. b. an analog demodulator "[sc]=demodulation(sm,fc.dtype)" which demodulates modulated signal "sm to reproduce message signal "sd". Demodulation type can be selected via dtype" as 'coh', 'env' or 'pll' which stands for coherent detector and envelope detector or and phase-locked loop respectively