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This paper derives the utility of recursion based adaptive algorithm for the cancellation of interference in open space in a noisy environment. Several parameters of interest like polarization, transmitter power, noise profile, filter characteristics and sampling rate are contemplated. We test the proficiency and ability of recursive least square (RLS) adaptive algorithm for frequency, temporal and...
The same frequency interference (including direct coupling wave of receiving and transmitting antennas, direct surface reflection wave), because of its strong energy, has great effect for the target signal of a near field transient active electromagnetic detection system. This interference has the same frequency as target signal, and is generally bigger than the target signal, so, it is of great harm...
This paper presents noise suppression linearly constrained least square constant modulus algorithm (LSCMA) for blind suppression of multiuser interferences cancellation in CDMA system. The conventional least square constant modulus algorithm (LSCMA) is difficult to converge to the desired user in the system that has several constant modulus signals. To overcome this shortage, a linearly constrained...
This paper presents a robust least square constant modulus algorithm (LSCMA) for interference cancellation based on subspace decomposition in CDMA system. The conventional least square constant modulus algorithm (LSCMA) is easy to capture the interference signals in the system that has several constant modulus signals. In order to overcome this shortage, a linearly constrained LSCMA algorithm is proposed...
The signal reaching the GPS receiver is very weak and well below the noise floor, hence be sensitive to any interference. In the strong interference environment, the conventional approach of processing GPS signal fails. In this paper, the recursive least-squares-version (RLS-version) algorithm for suppressing the strong interference based on the minimum-variance distortionless response (MVDR) criterion,...
In this paper the performance of the ESPAR (electronically steerable passive array radiator) antenna in suppressing both the co-channel and inter-symbol interferences is compared with the conventional circular and linear arrays. For this purpose, the STAP (space-time adaptive processing) is implemented in both arrays with equal elements. Simulation results show that when the pattern of the ESPAR antenna...
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