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中文摘要：
对虚拟空间平滑方法进行了修正,提出了一种适用于直线信号（如调幅、二进制相移键控信号等）的修正虚拟空间平滑解相干方法.该方法无需对信号初始相位作特别假定,并可在不损失阵列有效孔径和工作阵元的情况下完成信号解相干,经其预处理后的特征子空间分解信号波达方向（DOA）估计方法的性能要优于传统空间平滑方法.
英文摘要：
We propose a realistic modified virtual spatial smoothing（MVSS） algorithm for decorrelating the rectilinear signals（such as AM and BPSK signals）,which does not require special assumption on signals natural phases.The MVSS has the capability of fulfilling source decorrelation without array aperture reduction and effective element loss.The MVSS preprocessed subspace decomposition based direction of arrival（DOA） estimator is shown to outperform the traditional spatial smoothing counterpart.
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