基于传播算子的宽带谱相关测向算法

An Algorithm for Wideband Spectral Correlation DOA Estimation Based on Propagator Method

考虑宽带源波达方向(DOA)估计问题,提出了一种基于传播算子的宽带谱相关测向算法。该算法通过循环相关运算降低了噪声和干扰对估计结果的影响,通过多尺度布阵可以获得高精度无模糊二维DOA估计。此外,该算法不需要谱峰搜索,具有计算复杂度低的优点。计算机仿真验证了算法的有效性。

The problem of direction-of-arrival（DOA） estimation for wideband source signals utilizing the cyclostationarity property is addressed.A new algorithm which filters the noise and interferences by using the cyclostationarity property is presented.A multiscale array geometry is used which can produce high quality but unambiguous DOA solutions by fusing two sets of DOA estimates.The new algorithm does not require two-dimensional search and has low computational complexity.The simulation results demonstrate the effectiveness of the new algorithm.