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Pulse Repetition Interval, or PRI, is a critical parameter in radar systems. It represents the time interval between two consecutive pulses emitted by the same radar. PRI reflects the radar's working mode, its application, and even its threat level. However, in complex electromagnetic environments, estimating PRI parameters becomes challenging due to two main factors: First, modern radars use various PRI modulation styles, making PRI parameter changes complicated. Second, the high density of radiation sources causes radar signals to alias, leading to false signal interference
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