Stepped-frequency pulse-train radar signal

2002 ◽  
Vol 149 (6) ◽  
pp. 297 ◽  
Author(s):  
N. Levanon
Keyword(s):  
Pulse Train ◽  
Radar Signal ◽  
Stepped Frequency ◽  
Frequency Pulse

scholarly journals Implementation of GOA to Non-Uniform PRI of SFPT for improving Resolution in Radar

2020 ◽  
Vol 9 (8) ◽  
pp. 936-943
Keyword(s):  
Performance Measures ◽  
Pulse Train ◽  
Pulse Compression ◽  
Range Resolution ◽  
Counter Measures ◽  
Radar Systems ◽  
Differential Evolutionary Algorithm ◽  
Stepped Frequency ◽  
Repetition Interval ◽  
Frequency Pulse

Pulse compression techniques are mostly used for increasing range resolution in radar systems. Stepped Frequency Pulse Train (SFPT) signal is well suitable in pulse compression techniques. The Pulse Repetition Interval (PRI) of the SFPT is varied to avoid the blind speed and in Counter Measures. Here, evolutionary algorithms are used to optimize non-uniform PRI sequence of SFPT signal for getting better resolution. The PSLR( Peak Sidelobe Ratio) and ISLR (Integrated Sidelobe Ratio) are the performance measures of the signal. The non-uniform PRI sequence is optimized by Differential Evolutionary Algorithm (DE) but it has several drawbacks including unstable convergence in the last period and easy to drop into regional optimum. To overcome this, Grasshopper Optimizer Algorithm (GOA) is used in this paper for increasing the PSLR of Non uniform PRI SFPT signal.

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