Robust Generalized Sidelobe Canceller with an Eigenanalysis-Based Blocking Matrix
نویسندگان
چکیده
منابع مشابه
A New Adaptive Blocking Matrix with Exact Fir Structure for Robust Generalized Sidelobe Canceller
To improve the robustness of the generalized sidelobe canceller (GSC) against steering error and inevitable misdetection of adaptation mode control (AMC) in real applications, the conventional adaptive blocking matrix (ABM) consists of coefficient-constrained adaptive filters (CCAFs) which use the output of delay-and-sum fixed beamformer (FBF) as input, in order to limit the tracking range of t...
متن کاملA novel wavelet-based generalized sidelobe canceller
This paper presents a novel narrowband adaptive beamformer with the generalized sidelobe canceller (GSC) as the underlying structure. The new beamformer employs the regular M -band wavelet lters in the design of the blocking matrix of the GSC, which, as justi ed analytically, can indeed block the desired signals as required, provided the wavelet lters have su ciently high regularity. Additional...
متن کاملA Robust Generalized Sidelobe Canceller Employing Speech Leakage Masking
A novel speech enhancement method based on generalized sidelobe canceller (GSC) structure is presented. We show that it is possible to reduce audible speech distortions and preserve residual noise level under acoustic model uncertainties. It can be done by constraining a speech leakage power according to masking phenomena and conditional minimizing the residual noise power. We implemented the p...
متن کاملA robust generalized sidelobe canceller via steering vector estimation
In the presence of the direction of arrival (DOA) mismatch, the performance of generalized sidelobe canceller (GSC) may suffer severe degradation due to the gain loss of the desired signal in the main array and cancellation. In this paper, one effective GSC algorithm is proposed to improve the robustness against the DOA mismatch of the desired signal. Firstly, two subspaces, which contain the d...
متن کاملModulated Lapped Transform Generalized Sidelobe Canceller
Continuing improvements in analog and digital technology has made elemental digital beamforming (DBF) for sensor arrays a reality. Weak signal reception enhancement can be achieved through the adaptive suppression of potentially time-varying interference in operational environments. Utilizing all the degrees of freedom (DoF's) of an adaptive elemental DBF array with a large number of elements i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: DEStech Transactions on Engineering and Technology Research
سال: 2017
ISSN: 2475-885X
DOI: 10.12783/dtetr/iceeac2017/10761