Adaptive multi-standard signal classification and synchronization

A method for detecting a wireless signal, comprising:

• receiving signal data for an incoming signal;
• performing a first auto-correlation of the signal data at a first delay;
• performing a second auto-correlation, concurrent with the first auto-correlation, of the signal data at a second delay;
• and
• classifying the incoming signal based on a first magnitude of the first auto-correlation and a second magnitude of the second auto-correlation.

A signal processing system for an incoming signal, comprising:

• an auto-correlation bank configured to:
• perform a plurality of auto-correlations of signal data of the incoming signal, each auto-correlation having a distinct delay;
• and
• provide a carrier frequency offset (CFO) estimate based on the plurality of auto-correlations;
• a CFO correction circuit configured to frequency compensate the signal data with the CFO estimate;
• and
• a cross-correlation bank configured to dynamically provide a plurality of parallel cross-correlations of the frequency compensated signal data to resolve ambiguity in the CFO estimate.