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This paper presents three algorithms to suppress sidelobe of images produced by both RDA and CSA imaging algorithms. The first is windowed RDA (W-RDA) and windowed CSA(W-CSA) which decreases the sidelobe and increases the signal-to-noise ratio. The second is spatially variant apodization RDA and CSA (SVA-RDA and SVA-CSA) which weighs the amplitude of each point in frequency domain and then suppresses...
Ice load causes important faults on electric transmission lines (ETL), and power outages can be seen for days because of ice load. So, ice load effect must be prevented on ETL. One of the effect methods is Joule Effect Method (JEM). In JEM, ETL conductor is heated by current, and ice on conductor is melted. But primarily ice load amount must be determined to determine value of melting current. In...
The fractional Fourier transform (FrFT), which is a generalized form of the well-known Fourier transform, has only started to appear in the field of signal processing decade ago. This has opened up the possibility of a new range of potentially promising and useful applications. In this paper we apply the new FrFT-based Chirp Scaling Algorithm (CSA) to a high resolution small target imaging and compare...
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