为了使在空间光调制器上易于实现的三元相位振幅滤波器在畸变容限、噪声抑制能力和相关峰尖锐度这3个指标上均能取得较好的性能，在最优折衷最大相关高度滤波器的基础上提出了最优折衷三元相位振幅滤波器，并研究了其设计方法。它只需最大化单个准则就能确定最优的临界线角度和支撑区域，简化了优化设计过程。实验结果表明：与二元纯相位滤波器相比，这种滤波器对于在30°的旋转畸变范围内并存在复杂背景的目标能给出更尖锐的相关峰。这将提高相关峰探测的准确性。

In order to enable Ternary Phase-amplitude Filters (TPAFs) to be implemented in commercially-available Spatial Light Modulators (SLMs) to offer good performances in distortion tolerance, clutter noise suppression and correlation peaks sharpness, OT-TPAFs (Optimal Tradeoff TPAFs) were proposed and the design method was researched. The optimal threshold line angle and region of support can be determined by maximizing a single criterion, so the design procedure was simplified. The experimental results indicate, compared with BPOFs (Binary Phase-only Filters), this kind of filters can give sharp correlation peaks for targets within 30 degrees rotation distortion range in complicated background, which enhances the detection veracity of correlation peaks.