Abstract:Space Time Adaptive Processing (STAP) shows notable performance degradation when secondary data is contaminated by target-like signals or only a small number of secondary data is available. To solve the problem, a new methodology exploring characteristic structure of clutter ridge is proposed to suppress clutter which obscure objects. The phase spectra of ground clutter seen by an airborne radar are taken account of and a covariance matrix is obtained incorporating two-dimension Gaussian power spectral density model. The parameter of the model can be obtained by exploring the sensed environment. Simulation based on simulated data and MCARM real data show that noticeable performance improvements can be obtained with the new approach in heterogeneous environments.
周 宇; 张林让; 刘 楠; 刘 昕. 非均匀环境下利用杂波脊信息的杂波滤除方法研究[J]. 电子与信息学报, 2010, 32(6): 1332-1337 .
Zhou Yu; Zhang Lin-rang; Liu Nan; Liu Xin. Study on Exploring Knowledge of the Clutter Ridge for Clutter Suppression in Heterogeneous Environments. , 2010, 32(6): 1332-1337 .