Analysis of X‐band PolInSAR coherence characteristics in forested areas

Zhang, Haiying; Li, Zhenfang; Wang, Zhibin; Fang, Chao

doi:10.1049/iet-rsn.2016.0364

Cited by 1 publication

(4 citation statements)

References 44 publications

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“…The computational loads of RD PSS method in Ref. [30], PARAFAC method in Ref. [31], and ESPRIT method are also summarized for comparison in Table 1.…”

Section: Performance Analysis 41 Complexity Analysismentioning

confidence: 99%

“…In order to alleviate the computation complexity, a computationally efficient one-dimensional (1D) PSS method via reduced dimensional transform in Ref. [30] is conducted to 2D DOA estimation for CPA. In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…The proposed methods in Refs. [29][30][31] can also be applied to joint DOD and DOA estimations in bistatic coprime MIMO radar becasue the received signal model in CPA is similar with the model in bistatic coprime MIMO radar. However, all the mentioned algorithms in Refs.…”

Section: Introductionmentioning

confidence: 99%

“…However, all the mentioned algorithms in Refs. [29][30][31] ignore the non-circular characteristic of the imping sources when estimate the angle parameter for CPA. It is well known that the angle estimaiton accuracy and resolved sources can be significant improved by using noncircular characteristic of the noncircular signals.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Efficient tensor decomposition method for noncircular source in colocated coprime MIMO radar*

Xie¹,

Pan²,

Xiao³

2020

Chinese Phys. B

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An effective method via tensor decomposition is proposed to deal with the joint direction-of-departure (DOD) and direction-of-arrival (DOA) estimation of noncircular sources in colocated coprime MIMO radar. By decomposing the transmitter and receiver into two sparse subarrays, noncircular property of source can be used to construct new extended received signal model for two sparse subarrays. The new received model can double the virtual array aperture due to the elliptic covariance of imping sources is nonzero. To further exploit the multidimensional structure of the noncircular received model, we stack the subarray output and its conjugation according to mode-1 unfolding and mode-2 unfolding of a third-order tensor, respectively. Thus, the corresponding extended tensor model consisted of noncircular information for DOA and DOD can be obtained. Then, the higher-order singular value decomposition technique is utilized to estimate the accurate signal subspace and angular parameter can be automatically paired via the rotational invariance relationship. Specifically, the ambiguous angle can be eliminated and the true targets can be achieved with the aid of the coprime property. Furthermore, a closed-form expression for the deterministic CRB under the NC sources scenario is also derived. Simulation results verify the superiority of the proposed estimator.

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“…The computational loads of RD PSS method in Ref. [30], PARAFAC method in Ref. [31], and ESPRIT method are also summarized for comparison in Table 1.…”

Section: Performance Analysis 41 Complexity Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%