DOA Estimation of Noncircular Signals Using Quaternions
نویسندگان
چکیده
منابع مشابه
Noncircular-PARAFAC for 2D-DOA estimation of noncircular signals in arbitrarily spaced acoustic vector-sensor array subjected to unknown locations
In this paper, we propose a noncircular-parallel factor (NC-PARAFAC) algorithm for two-dimensional direction of arrival (DOA) estimation of noncircular signals for acoustic vector-sensor array. The proposed algorithm enhances the angle estimation performance via utilizing the noncircularity of the signals, and it can be suitable for arbitrary array subjected to unknown locations and achieve aut...
متن کاملStochastic Crame'r-Rao bound for noncircular signals with application to DOA estimation
After providing an extension of the Slepian–Bangs formula for general noncircular complex Gaussian distributions, this paper focuses on the stochastic Cramér–Rao bound (CRB) on direction-of-arrival (DOA) estimation accuracy for noncircular sources. We derive an explicit expression of the CRB for DOA parameters alone in the case of noncircular complex Gaussian sources by two different methods. O...
متن کاملDOA Estimation of Nonstationary Signals
In this Chapter, we discuss the direction finding problem of sources emitting or inducing nonstationary signals. The focus is on signals which are uniquely characterized by their instantaneous frequencies. Recognizing the quadratic time-frequency distributions as an effective tool to localize signal power in the time-frequency domain, we present nonstationary array processing in the context of ...
متن کاملDOA Estimation of Wideband Signals
For many applications, wideband signals are exploited for localization. A wideband signal is any signal whose energy is distributed over a bandwidth that is large in comparison to the signal’s center frequency. For example, ultrawideband (UWB) noise radars use wideband offering low probability of detection (LPD), while achieving good target detection and high resolution [1]. In the acoustic veh...
متن کاملFast Noncircular 2D-DOA Estimation for Rectangular Planar Array
A novel scheme is proposed for direction finding with uniform rectangular planar array. First, the characteristics of noncircular signals and Euler's formula are exploited to construct a new real-valued rectangular array data. Then, the rotational invariance relations for real-valued signal space are depicted in a new way. Finally the real-valued propagator method is utilized to estimate the pa...
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: International Journal of Antennas and Propagation
سال: 2017
ISSN: 1687-5869,1687-5877
DOI: 10.1155/2017/9848169