Evaluation and simulation of LPI radar signals' low probability of exploitation

With the development of investigation technology, stealthy performance of modern LPI radar is not only related to the signal waveform, but also related to the signal processing methods the intercept receiver used. Using the most common signal processing methods extract the signal feature, and distinguish them by Neural Networks algorithm, take the recognition rate results as the metrication of LPE, to quantify and evaluate the effect that the secure waveform design have on minimizing the risk of divulging radar. And combine it with LPI coefficient to analyze signal waveform. The simulation result indicates that Poly-Phase Shift Keying signal has the best stealthy performance, Linear Frequency Modulation signal has low probability of interception, but high probability of exploitation, Frequency Shift Keying signal has the temperate stealthy feature and the result can be referred, when it comes to the LPI signal waveform design.