design a basic am-stereo receiver system used in am radio station. the superheterodyne receiver system which should be able to demodulate and separate two information signals. in matlab

To design a basic AM-Stereo receiver system using the superheterodyne technique in MATLAB, you will need to implement the following steps:

1. Signal Acquisition:

   • Define the carrier frequency and sampling frequency.
   • Acquire the AM radio signal using audioread or any other appropriate method.

2. Filtering:

   • Design a bandpass filter to extract the desired frequency range. You can use the built-in filter design functions in MATLAB, such as fir1 or designfilt.
   • Apply the bandpass filter to the acquired signal using filter.

3. Demodulation:

   • Implement envelope detection by taking the absolute value of the filtered signal.
   • Using the Carrier Signal Recovery technique, extract the carrier frequency from the AM signal. This can be done using a phase-locked loop (PLL) or frequency-locked loop (FLL) structure.
   • Recover the baseband signal by multiplying the filtered signal with the carrier frequency.

4. Signal Separation:

   • Implement a phase shift detection technique, such as SCA (Subsidiary Communications Authorization), to separate the two information signals present in AM-Stereo.
   • Apply appropriate filtering or demodulation techniques to recover the desired information from each of the separated signals.

5. Output:

   • Play or save the demodulated and separated audio signals using the sound or audiowrite functions in MATLAB.

You can refer to MATLAB's documentation for the specific functions and syntax for each step mentioned above. Additionally, there are numerous resources available online that provide MATLAB code examples and tutorials for designing AM-Stereo receivers.

Please note that this is a high-level overview, and further details and specific implementations will depend on the specific requirements and specifications of the AM-Stereo receiver system you are designing.