基于子区间的雷达探测距离和测距精度分析OA北大核心CSTPCD

Detection range and ranging accuracy are the key performance indicators of radar.Under actual service conditions,they are greatly affected by uncertain factors such as internal signal transmission loss and external signal interference of radar system.Improving its accuracy has become an important topic in the field of radar research.In order to evaluate the influence of the above uncertain factors on the radar performance,the uncertainty analysis of radar detection range and ranging accuracy was carried out.Firstly,the radar detection range and ranging accuracy models considering signal transmission loss and signal interference were established;secondly,the interval model was used to quantify the uncertainty parameters to realize the uncertainty measurement under the unified framework of internal and external parameters;then,the accurate response surface models of detection range and ranging accuracy were constructed,and the influence of multi-dimensional parameters on detection range and ranging accuracy was sorted by using Sobol'global sensitivity analysis method;finally,the subinterval decomposition analysis method was used to obtain the radar detection range and ranging accuracy range,and the results were compared with those calculated by Monte Carlo simulation method to verify the effectiveness of the proposed method.Reasonable tolerance and threshold values are set for radar detection range and ranging accuracy,which can improve the efficiency of radar performance analysis and reduce the cost of performance analysis.