An Improved Adaptive Sidelobe Blanker
نویسندگان
چکیده
منابع مشابه
Bandiera and Orlando: an Improved Adaptive Sidelobe Blanker
We propose a two stage detector consisting of a Subspace Detector (SD) followed by the Whitened Adaptive Beamformer Orthogonal Rejection Test (W-ABORT). The performance analysis shows that it possesses the Constant False Alarm Rate property with respect to the unknown covariance matrix of the noise and that it guarantees a wider range of directivity values with respect to previously proposed tw...
متن کاملAn Ultralow - Sidelobe Adaptive Array Antenna
One of the most important functions of a radar antenna is to provide spatial filtering that maximizes the radar's sensitivity in the desired sUIveillance direction while suppressing interference signals that enter the radar from other directions. This article describes a UHF radar antenna systemwith exceptional interference-rejection capabilities that are achieved through a combination of preci...
متن کاملImproved bounds on the peak sidelobe level of binary sequences
Schmidt proved in 2014 that if ε > 0, almost all binary sequences of length n have peak sidelobe level between ( √ 2 − ε)√n log n and ( √ 2 + ε) √ n log n. Because of the small gap between his upper and lower bounds, it is difficult to find improved upper bounds that hold for almost all binary sequences. In this note, we prove that if ε > 0, then almost all binary sequences of length n have pea...
متن کاملSpeech Enhancement Using Near-field Superdirectivity with an Adaptive Sidelobe Canceler and Post-filter
This paper describes a new microphone array technique and investigates its effectiveness for speech enhancement. A system structure consisting of a fixed near-field superdirective beamformer and an adaptive sidelobe canceling path is proposed (NFSD-ASC). The effect of adding a post-filter is also examined. The system is evaluated in terms of speech quality measures in the context of a computer ...
متن کاملImplementation of an Improved Adaptive Testing Theory
Computer adaptive testing is the study of scoring tests and questions based on assumptions concerning the mathematical relationship between examinees’ ability and the examinees’ responses. Adaptive student tests, which are based on item response theory (IRT), have many advantages over conventional tests. We use the least square method, a well-known statistical method, to reach an estimation of ...
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: IEEE Transactions on Signal Processing
سال: 2008
ISSN: 1053-587X,1941-0476
DOI: 10.1109/tsp.2008.926191