目标检测是雷达领域中一项重要的研究课题。在实际系统中，由于应用环境的不同，需要选取合适的检测算法。雷达中的恒虚警。-111c target detection is a key research project in Radar field．In real systems．the appropriate detection method should be selected due to different application environments.const false alerting rate in radar.