Performance evaluation of LPI communication system: A novel index system

Low probability of interception (LPI) communication technology is one of the hotspots in the development of military communication technologies and has received more and more attention. Construction of performance evaluation index system is a critical technology to guide the development of LPI communication equipment, which has not been mature till now. A layered index system is proposed in order to overcome the drawbacks that the existing indices were almost all constructed based on certain intercepting receivers and could not evaluate the LPI performance of a communication system independently. The newly proposed layered index system consists of covering layer, detection layer and interception layer. Indices of each layer can reflect the inherent characteristics of target system independent of intercepting receiver. The principles of LPI waveform design are given out based on the layered index system. The proposed index system can provide a quantitative examination criterion for development of LPI communication equipments.