首页|Fast measurement and prediction method for electromagnetic susceptibility of receiver
Fast measurement and prediction method for electromagnetic susceptibility of receiver
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NETL
NSTL
万方数据
维普
Aiming at evaluating and predicting rapidly and accu-rately a high sensitivity receiver's adaptability in complex elec-tromagnetic environments,a novel testing and prediction method based on dual-channel multi-frequency is proposed to improve the traditional two-tone test.Firstly,two signal genera-tors are used to generate signals at the radio frequency(RF)by frequency scanning,and then a rapid measurement at the inter-mediate frequency(IF)output port is carried out to obtain a huge amount of sample data for the subsequent analysis.Secondly,the IF output response data are modeled and analyzed to con-struct the linear and nonlinear response constraint equations in the frequency domain and prediction models in the power domain,which provide the theoretical criteria for interpreting and predicting electromagnetic susceptibility(EMS)of the receiver.An experiment performed on a radar receiver confirms the relia-bility of the method proposed in this paper.It shows that the interference of each harmonic frequency and each order to the receiver can be identified and predicted with the sensitivity model.Based on this,fast and comprehensive evaluation and prediction of the receiver's EMS in complex environment can be efficiently realized.
State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System,College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China
State Key Laboratory of Astronautic Dynamics,Xi'an 710043,China
NETL
NSTL
万方数据
维普
