Inherent Anti-jamming Performance Evaluation of Cyclic Modulation Continuous Wave Radio Fuzes Based on Ambiguity Function Incision.

In this paper, we propose an ambiguity function (AF) incision method to evaluate and compare the inherent anti-jamming performance of cyclic modulation continuous wave radio fuzes based on the active jamming mechanism analysis and AF theory. This method is applied to evaluate symmetric triangular frequency modulated continuous wave radio fuze, sawtooth frequency modulated continuous wave radio fuze and pseudo-random coded phase modulated continuous wave radio fuze in this paper. A plane parallel to τ-ζ<inline-graphic></inline-graphic> plane is used to cut the ambiguity function map at a certain normalized height threshold to get an incision plane. According to working parameters and status of radio fuzes, the scope of (τ1,τ2)<inline-graphic></inline-graphic> and (ξ1,ξ2)<inline-graphic></inline-graphic> is determined to compute the incision area by numerical integral. The incision area is used to estimate the anti-jamming performance of the radio fuze. The smaller the area value is, the better anti-jamming performance of the fuze can be achieved. The anti-jamming abilities of different radio fuze systems are analyzed and simulated with the means of AF incision method. We also compare the anti-jamming abilities of radio fuzes with the same system but different parameters. Simulation results show that the AF incision method is objective, reasonable, computable and applicable to evaluate the inherent anti-jamming performance of cyclic modulation continuous wave radio fuzes. In practical engineering, the AF incision area value can be used as one of the anti-jamming indexes to evaluate the comprehensive anti-jamming performance of radio fuzes. [ABSTRACT FROM AUTHOR]