Polarization Sensitive Array Of Multi-parameter Joint Estimation

The characters of electromagnetic wave are amplitude, frequency, phase, polarization. Traditional parameters estimation is forcus on the first three parameters,in the recent years, the application of polarization to get more informations to partition and estimation, enlarge the partition approachs. Polarization Sensitive Array(PSA) can acquire the polarization information besides the spatial information of the electromagnetic signals, possesses strong anti-jamming ability, robust detecting performance, high resolving power and polarization multi-address capalility. The joint polarization and other parameters estimation methods have better performance on estimation precision, become the hotspot in recent years.In this paper, using commonly used polarization sensitivity antenna, three dipoles, two joint frequency, 2-D AOA and polarization estimation methods of incoming multiple independent spatial narrow-band signals using rectangular and L-shape array respectively are analysed. And take the conclusion that the two methods have similar estimating precision and the L-shape array has simpler configuration and less redundancy.In base of situation when the idealization is not satisfaced, there is a new joint frequency, 2-D AOA and polarization estimation method. Using a single sensor to receive the completely six electromagnetise vectors, which could conquer the rank deficient, also can estimate the 2-D AOA when they're partially polarized signals.In order to upgrade the estimation and detectation ability, LFM signal has large time-bandwidth. Accroding to the trait that the time-frequency distribution of LFM is with energy conglomeration, we improve on an arithmetic to estimate frequency, 2-D AOA, polarizations and other parameters by using WVD to construct signal subspace.