【摘要】 针对宽带阵列信号,采用Nyman-Pearson准则,推导出在宽带平稳信号和噪声假设下进行检测的最佳时、频、空加权网络。同时推导出了系统的处理增益,仿真结果验证了最佳加权网络相对于采用均匀加权的常规处理具有较高的处理能力。更多还原

【Abstract】 With the assumption that the signal and noise arriving at an array of sensor is broadband data with Gaussian distribution,optimal detection is obtained using Nyman-Pearson criterion.The opti-mum method of weighting array data in time -frequency-spatial domain to detect signal when deducing the test statistic is obtain ed.System gain is also deduced.Simulation results indicate that broadband signal processing with optimal weights has high detection performance over the conventional ones that adopt uniform weights.[更多还原