Direction-of-Arrival Tracking Scheme for DS/CDMA Systems: Direction Lock Loop
نویسندگان
چکیده
منابع مشابه
‘Direction of Arrival’ Estimation Algorithm: Direction Lock Loop
In this paper, a new direction of arrival (DOA) estimation algorithm, direction lock loop (DiLL), is proposed. It has a similar concept to the delay lock loop (DLL) that is used for synchronization. It estimates the DOA of a signal by iterations, and can track the DOA of a moving source. The DiLL scheme is found to track better than the DOA estimation scheme based on the PASTd, and its performa...
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In order to solve the problem of poor real-time performance, low accuracy and high computational complexity in the traditional process of locating and tracking of Direction of Arrival (DOA) of moving targets, this paper proposes a DOA algorithm based on the Direction Lock Loop (DILL) which adopts Lock Loop structure to realize the estimation and location of DOA and can adjust the direction auto...
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yy Abstract| A new algorithm is presented for estimating the directions of arrival of signals from an unknown number of moving signal sources. The parameter space is a countable union of cartesian products of the torus, each product space corresponding to a diierent number of signals reaching the sensor array. A Bayesian posterior probability measure is deened on this parameter space by combini...
متن کاملDirection of Arrival Estimation
We have seen that there is a one-to-one relationship between the direction of a signal and the associated received steering vector. It should therefore be possible to invert the relationship and estimate the direction of a signal from the received signals. An antenna array therefore should be able to provide for direction of arrival estimation. We have also seen that there is a Fourier relation...
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Array Signal Processing (ASP) is a relatively new technique in Digital Signal Processing (DSP) with many potential applications in communication and speech processing. Direction of arrival (DOA) can be estimated using different techniques evolved with ASP. It is observed that subspace method provides superior performance in resolving closely spaced sources.
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ژورنال
عنوان ژورنال: IEEE Transactions on Wireless Communications
سال: 2004
ISSN: 1536-1276
DOI: 10.1109/twc.2003.821215