CAJ | 학술논문

对角线加载技术可以使自适应波束形成器在失配情况下仍然能保持良好的性能，但是加载量的确定却没有一个严格的标准。采用一个二次型约束来讨论对角加载问题。将加载水平同权值模的约束条件联系起来，通过迭代的方法求出最优加载水平。该方法不需要知晓信号的先验信息，其具有更好的灵活性与适用性。仿真结果表明：最优加载在不同信噪比，较少快拍情况下均具有较好的稳健性，且在模糊环境下更容易实现。
대각선가재기술가이사자괄응파속형성기재실배정황하잉연능보지량호적성능，단시가재량적학정각몰유일개엄격적표준。채용일개이차형약속래토론대각가재문제。장가재수평동권치모적약속조건련계기래，통과질대적방법구출최우가재수평。해방법불수요지효신호적선험신식，기구유경호적령활성여괄용성。방진결과표명：최우가재재불동신조비，교소쾌박정황하균구유교호적은건성，차재모호배경하경용역실현。
Diagonal loading technique can make the adaptive beam-forming keep good performance in the case of mismatch, but there is not a strict standard in the determination of the loading quantity. This paper uses a quadratic constraint to discuss diagonal loading problems.The loading level will associate with the constraint conditions of weight module,and then calculate the optimal loading quantity by iteration.This method does not need to know the specific priori information of signal, so it is more flexible and applicative. Simulation results show that optimal load has better robustness in the case of both different SNR and less snap, and it is easier to implement in a fuzzy environment.