منابع مشابه
Modulated 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 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...
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A Side Lobe Canceller (SLC) structure is a conventional partially adaptive technique which is used in large adaptive array radars. If a desired signal has long time duration in comparison with the SLC adaptation time, signal components may be cancelled. So, this paper presents a modified SLC which eliminates desired signal cancellation problems and allows using an unconstrained adaptive algorit...
متن کاملA 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 کاملSidelobe Reduction in Non-Contiguous OFDM-Based Cognitive Radio Systems Using a Generalized Sidelobe Canceller
In orthogonal frequency division multiplexing (OFDM), sidelobes of the modulated subcarriers cause high out-of-band (OOB) radiation, resulting in interference to licensed and un-licensed users in a cognitive radio system environment. In this work, we present a novel technique based on a generalized sidelobe canceller (GSC) for the reduction of sidelobes. The upper branch of the GSC consists of ...
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ژورنال
عنوان ژورنال: The International Conference on Electrical Engineering
سال: 1999
ISSN: 2636-4441
DOI: 10.21608/iceeng.1999.62302