Noise reduction and spur and distortion cancellation techniques

A wireless communication device, comprising:

• an antenna configured to detect a radio frequency (RF) signal;
• signal estimation circuitry configured to receive the RF signal and generate estimates of amplitude and frequency for unmodulated spurs within the RF signal;
• multi-tone generator circuitry coupled to the signal estimation circuitry and configured to generate a composite spur cancellation signal based on the estimates of amplitude and frequency for unmodulated spurs within the RF signal;
• and
• adder circuitry configured to subtract the composite spur cancellation signal from the RF signal to generate a spur cancelled signal,
• wherein for unmodulated spurs that are non-integer multiples of a fundamental spur frequency, the multi-tone generator circuitry is configured to generate the composite spur cancellation signal comprising multiple tones based on performance of an inverse Fast Fourier transform (IFFT) on the estimates of amplitude and frequency.