Estimation of the Hit Probability and its Effect on the Performance of Frequency Hopping Radar System

It was found that, the frequency hopping, FH, technique minimizes sensitivity of radar system to jamming and interference and may solve some of the ambiguity and resolution problems. In the present work, at first, a theoretical introductory to summarize the subject of FH technique, slow frequency hopping (SFH) as well as fast frequency hopping (FFH) is given. Fast frequency hopping will be considered rather than SFH because its performance is significantly better . The frequency hopping procedure will be carried out pseudo randomly according to the Gamma random distribution which is proved here to have better correlation properties. Expectation of the hit probability of the used FH sequences of the radar signal, as well as the range ambiguity function, will be calculated and evaluated as a measure of the system performance. The simulation output has proved that the FFH radar system can achieve a nearby ideal performance.