Elimination of Short Pulse Interference in Pulse Compression Radars

摘要

Preliminary to a study on environmental mapping based on real data, a simulation was developed to study short pulse interference and its effect on detection in a pulse compression radar. A simulation was needed because the available data were recorded after the pulse compression network. This is too late to eliminate short pulse interference; it must be detected and eliminated prior to pulse compression. The simulation also treats the problem of removing clutter and short pulse interference when both are present. The simulation involved a signal of approximately the same level as the noise, short pulse interference peaking 40 dB above the noise, and clutter with average level the same as the peak level of the short pulse interference. With these levels, either short pulse interference of clutter would inhibit detection, but prepulse compression blanking of the interference and postpulse compression cancellation of the clutter allowed detection of the target signal. (Author)