[Institution of Engineering and Technology IET International Radar Conference 2015 - Hangzhou, China (14-16 Oct. 2015)] IET International Radar Conference 2015 - The dynamic update of environmental knowledge baseShuping Lu, Shuping Lu; Haiyang Song, Haiyang Song; Wei Yi, Wei Yi; Lingjiang Kong, Lingjiang Kong; Xiaobo Yang, Xiaobo Yang · 2015