Selective intrusion detection systems

An intrusion detection system comprising:

• a radar transceiver configured and adapted to transmit and receive radar signals indicative of moving targets present in a surveillance space;
• a processor operatively connected to the radar transceiver to convert radar signals into spectrograms and to determine whether any given spectrogram is indicative of presence of a human or of another moving target in the surveillance space;
• an alarm operatively connected to the processor, wherein the processor and alarm are configured to provide an alert in the event the processor determines any given spectrogram is indicative of a human, and to forego providing an alert in the event the processor determines any given spectrogram is indicative only of another moving target;
• and
• a smart diagnostic system operatively connected to the processor, the smart diagnostic system configured to:
• store spectrograms and corresponding end user input of human/other moving target determinations to a database;
• and
• to update determination processes of the processor based on the stored spectrograms and the corresponding end user input in the database to continuously update and improve determination processes and performance of the intrusion detection system.