Radar apparatus and method with content embedded in the radar signal

An apparatus comprising:

• receiver circuitry to receive a frequency modulated continuous wave (FMCW) radar signal having a content signal embedded into a radar waveform and having a relationship between beat frequency and time delay;
• and
• signal processing circuitry to apply a filter to account for the time delay, the application of the filter causes a residual error in the content signal, and the signal processing circuitry to account for the residual error by introduction of a dispersion-related function in further processing of the content signal, the signal processing circuitry comprising:
• a first delay correction circuit,
• a second delay correction circuit different from the first correction delay circuit, and
• an equalization circuit having a first input coupled to an output of the first delay correction circuit and a second input coupled to the output of the second delay correction circuit.