[PDF] Top 20 DOA Estimation Using Time-Frequency Conversion Pre-Processing Method

... of DOA estimation techniques is developed based on ideal condition of signal sources and array sensor ...the DOA estimation algorithm using the de-noising pre-processing ... See full document

... Array processing is used in diverse areas such as radar, sonar, communications, and seismic ...(DOA) estimation have been a topic of great ...parameter estimation is then prewhitened ... See full document

... (DOA) estimation, such as fewer array elements, two- dimensional (2-D) fuzzy direction finding, wide frequency range and simple installation structure ...the DOA estimation of UCA ... See full document

... amplitude, frequency, phase, and the variability of its instantaneous spectral ...several processing variables such as resolution, noise level, and bias of the algorithm ...existing frequency ... See full document

... joint DOA and frequency estimation methods call for two-dimensional (2-D) search, or multiple 1-D searches, or multiple delay taps, and/or complex pair matching processing, ...joint DOA ... See full document

... array processing, joint angle and Doppler estimation for space-time adaptive processing (STAP) air- borne radar, synthetic aperture radar (SAR) imaging, and some electronic warfare and sonar ... See full document

... parameter estimation problem for the mixed NFSs and FFSs ...algorithm using cumulant is presented to solve the mixed source localization ...this method has loss of array ...better estimation ... See full document

... (DOA) estimation as a pre-processing stage. Four different time delay estimation methods were compared based on the measurements from a typical ...cross-correlation method ... See full document

... spectrum estimation technology has always been the focused research project in an array signal processing of High Frequency Surface Wave Radar ...with time-frequency analysis ... See full document

... (DOA) estimation has found numerous applications to radar, sonar, wireless communica- tions, and other ...narrowband DOA estimation for each frequency bin and then statistically combine ... See full document

... (DOA) estimation of far-field narrowband ...simultaneous processing of several data snapshots to obtain greater accuracy in the DOA ...The DOA problem is addressed in both uniform ... See full document

... 2-D DOA estimation ...2-D DOA estimation. In [14], a novel 2-D DOA estimation method using a sparse L-shaped array is proposed to obtain high per- formance and less ... See full document

... sampling time; additional interpolation filtering is required to emulate their ...the DOA of wideband signals, each single weight is replaced by a tape delay lines ...Space Time Adaptive Processor ... See full document

... In this correspondence, we combine the electromagnetic vector sensors with the conformal array, and present a unified model based on geometric algebra to estimate the DOAs. Compared with existing methods, the pro- posed ... See full document

... In this paper, as an alternate intelligent method artificial neural networks are attempted to estimate the DOA. Artificial neural networks provide good results even if there is a corruption in signal. In ... See full document

... and time-selective ...highly-efficient time- gating device and the wavelength converter can be applied to our proposed ...from time- frequency domain processing too ... See full document

... The spherical Luneburg lens (see in Figure 1) consists of 11 layers starting from the center. The first ten layers have a thickness of 3 mm each and the last layer is 1.75 mm thick. The dielectric parameters of the layers ... See full document

... the DOA estimation issue with EVSA has been widely studied ...based method for DOA and polarization estimation with arbitrarily spaced ...polynomial-rooting method [9] was ... See full document

... CRP method has actually proved to be its dependence on the conditioned spectral analysis, which is a comparatively complicated approach to the decorrelation of ...alternative time domain approach, referred ... See full document

... (DOA) estimation algorithm based on group sparse reconstruction algorithm utilizing signals observed at multiple ...for DOA estimation is solved through the complex multitask Bayesian ... See full document