Research on self-interference cancellation and target echo attenuation methods in full-duplex jammer
The full-duplex jammer has the capability to simultaneously transmit and receive high-threat signals,and has broad application prospects in the field of electronic countermeasures field.However,the cancellation of leaked strong self-interference nonlinear signals has become a challenging problem for detecting and receiving high-threat signals.In order to solve this problem and enhance the interference effect of the full-duplex jammer,a self-interference nonlinear model and its model solving method for the full-duplex jammer is proposed,and a target weakening method is presented to address the weak target masking ability.The proposed full-duplex self-interference cancellation method aims to improve the waveform agility capability of the full-duplex jammer,while the proposed target attenuation method aims to enhance the masking capability for the target.Simulation experimental results demonstrate that comparing with traditional methods,the proposed methods can adapt to radar waveform variations,achieving target attenuation with a level of 2 dB above the noise floor with normalized matching results,whereas traditional methods are fail to achieve such target attenuation effect.The proposed methods can quickly adapt to changes in radar signals and has stronger self-interference cancellation performance,which provides a technical approach to enhance the target masking performance of full-duplex jammer.
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维普
