Mustafa Secmen

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— This paper considers the implementation of smart antenna system under multipath propagation. Here, it is considered different non-coherent signal groups each containing direct and multipath signals. The direction of arrival (DOA) of all the signals in each group is estimated using Minimum Variance Distortionless Response (MVDR) in conjunction with joint(More)
The study demonstrates the metamaterial characteristics of the arrays containing dielectric resonators by evaluating the permittivity and permeability coefficients of the array structures in rectangular waveguide and free space. For this purpose, the array with two closely spaced dielectric resonators is setup and placed both in a rectangular waveguide and(More)
This study describes about a Ku-band antenna with almost circular polarization in omnidirectional azimuth direction. The antenna structure contains two sections of inclined slotted array on a circular waveguide, and the waveguide is terminated with a matched load. The structure is fed a rectangular waveguide and a rectangular-to-circular waveguide(More)
In this study, we consider the challenge of estimation of fading coefficients for uncorrelated sources in the presence of multipath propagation. The combination of Joint Approximate Diagonalization of Eigenmatrices (JADE) and some well-known high-resolution algorithms such as Multiple Signal Classification (MUSIC), Minimum norm (Min-norm) and Modified(More)
This study includes the performance comparison of the target classification methods based on Wigner distribution in the resonance scattering region where the dimensions of the target close to wavelengths. In the suggested method, important optimum late-time intervals of the scattered signals are theoretically determined by using the Wigner energy maps of(More)
In this paper, an active noise cancellation system to decrease the motor noise arriving to car driver is proposed. This system can be considered as a feedforward control system since it enables taking motor noise as the reference signal. The coefficients of adaptive filters in this structure are obtained with LMS (Least Mean Square) algorithm. In this(More)
In this paper, a method oriented to the extraction of target poles is presented for target recognition purpose. By applying wavelet transform to whole signal, the mention method obtains target poles with a map extracted in time and frequency axes simultaneously. For this purpose, with complex Morlet wavelet transform, a map having sufficient resolutions in(More)