论文部分内容阅读
根据红外背景干扰的时、空特性,为干扰抑制和目标探测推导出了一种实质上相当于极大似然检验的最优算法。这种算法能适用于如果需要可以不断更改的各种算法参数(背景干扰的时、空相互关系)。凡有可能,这种算法也能利用目标辐射强度的先验知识。初步模拟结果表明能够充分抑制背景干扰,使低辐射强度目标(信噪比为1)能探测出来。
According to the temporal and spatial characteristics of infrared background interference, an optimal algorithm that is substantially equivalent to the maximum likelihood test is derived for interference suppression and target detection. This algorithm can be applied to various algorithm parameters that can be constantly changed if needed (background-temporal, spatial-temporal correlation). Whenever possible, this algorithm can also take advantage of a priori knowledge of the target’s radiation intensity. The preliminary simulation results show that the background interference can be sufficiently suppressed, and the target of low radiation intensity (signal to noise ratio of 1) can be detected.