| The antenna sideslobe adaptive cancellation is an effective measure to restrain active jamming. A certain radar signal processing system improves its anti-intefere ability by employing just the technology. A simulation signal source is required to provide all kinds of echo signal, includeing active jamming, to the signal processing system when it is developed and debugged in laboratory. First this paper discusses the basic theory of the antenna sideslobe adaptive cancellation technology, analyses the performance of the antenna sideslobe adaptive cancelling system using single auxiliary antenna with single plural weight and studies restriction of some actual factors to cancelling gain. Then this paper presents the method to simulate active jamming. The simulation models of narrowband and wide-band amplitude jammer are established, how to compute its aparameter is gived. the correlation of the simulation jamming signal is analysed, and the validity of the model is validated. Finally, combining with technologic parameters and debugging requirement of the signal processing system, this paper establishes the simulation models of target and environment, introduces the design scheme and realization of hardware of the simulation signal source in detail, and offers the experiment results which improves of validity of the simulation work. |
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