Introduction of low probability of recognition to radar system classification

This paper proposes the addition of low probability of recognition (LPR) to the electronic warfare classification of radar systems. LPR radars focus on deceiving electronic support (ES) receivers by selecting waveforms which are agile in their parameter spaces, or by mimicking existing transmitters. LPR provides an additional mechanism to achieve covert operation in a way which builds on low probability of interception (LPI) and low probability of detection (LPD) techniques. The challenges and opportunities of LPR techniques are considered, and some examples of existing waveforms which are suitable for LPR radars are provided.