一种新的解模糊方法研究

针对反辐射导弹导引头超宽带测向系统中,在较小的体积内难以同时保证测向精度和解模糊的技术难题,介绍了相位干涉仪测向原理和参差双基线解模糊方法及其原理,并结合反辐射导弹导引头的具体应用情况,提出了一种基于虚拟基线解模糊方法。该方法不但解决了测向精度与角度模糊的矛盾,且无需考虑基于余数定理解模糊方法中要求基线长度满足参差关系条件,还最大限度地避免了天线间的互耦影响。仿真结果证明该方法的有效性。

Study on New Method of Resolving Angle Ambiguity

Considering the technology difficulty in satisfying direction finding accuracy and resolving angle ambiguity,the same time in defined space for ultra-band antiradiation missile seeker,theories of direction finding by phase interferometer and resolving angle ambiguity by double base line are simply introduced.Combing with the concrete application of antiradiation missile seeker,an applied algorithm based on virtual base line is proposed.It can solve the contradiction between direction finding accuracy and angle ambiguity,and the length relationship of base lines which must be satisfied in method based on Chinese remainder theory can be neglected.Also the inter-coupling influence between the antennas can be furthest avoided.Computer simulation shows that the algorithm is effective.