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Direct data domain least square (D3LS) approach has been developed so quickly for array signal processing. Because, only a single data snapshot instead of multiple needed to form a covariance matrix in conventional algorithms. Unfortunately it is generally assumed that one knows the direction of arrival (DOA) of the signal of interest (SOI) and the goal is to estimate its complex amplitude in the...
Taking TD-SCDMA system as an example, this paper would give the MDOA method to extract array manifold from smart antenna (SA) receiver directly by utilizing the feature of mid-amble sequence, which is easier to be implemented than those classic methods used for the detection of DOA. Another prominent advantage of the method is that the number of DOA can be detected is not limited to that of array...
In This paper we have addressed the problem of direction of arrival (DOA) estimation algorithm and beamforming for Impulse Radio (IR) Ultra-wideband (UWB) communication systems in additive white Gaussian noise. The multi user UWB pulse-position modulation (PPM) signals are received by smart antenna(Uniform linear array) are Fourier transformed to split the array output into multiple frequency channels,...
In this paper two section array and the arithmetic of DOA are studied on the eight elements array antennas and DOA arithmetic is designed on the FPGA. The directional characteristic of the line array and the elliptic array antenna is compared, proving that the line array and the circuit array can be consolidated in the elliptic array and deducting the uniform expression for array performance, forth...
There has been an effort to reduce the number of sensor elements in smart antennas used to estimate the direction of arrival in multipath environment. This paper proposes use of the DOA estimation based on two stages of detection: a first stage for discriminating uncorrelated signals, and a second stage for resolving the directions of arrival of correlated signals using covariance differencing and...
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