An Improved Amplitude Comparison Based Direction of Arrival Estimation
نویسندگان
چکیده
The Direction of Arrival (DOA) is regarded as the best initial sorting parameter for locating enemy radar. The Direction finding (DF) systems are employed for estimating the direction of arrival of radar installation. Among all the techniques Amplitude Comparison Direction Finding (ADF) technique is the simplest. The Amplitude Comparison DF compares amplitude of the signal at multiple receivers for finding DOA. Conventional ADF provides moderate accuracy of around 5 degrees in the C through J band. In this project a fuzzy classifier based ADF algorithm is proposed to enhance the DOA performance in terms of accuracy. The algorithm will be simulated in MATLAB and tested on real time data. The effects of various parameters such as number of cluster centers, fuzzy index, beam shaping factor, initial centers, clustering methods on the algorithm are considered. Keywords— Amplitude Comparison, DOA, Fuzzy Clustering, Fuzzy C Mean, Kmean.
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