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2 articles for “Cosine mapping”
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A New Optimal Biphase Pulse Compression Codes based on Cosine Mapping
Abstract: In proposed method a new optimization algorithm based on cosine mapping is introduced for radar pulse compression. The algorithm generate optimal chaotic biphase sequence having good autocorrelation and cross correlation properties. The sequence produces inherently small side lobes in autocorrelation function (ACF) of matched filter. Reduced values of side lobe level signify the optimal values of merit factor (MF) and peak side lobe level (PSL) and hence enhancement in radar …
Published in Recent Trends in Electronics Communication Systems · Vol. 2, Issue 2, 2015 · pp. 20–25 Read article
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Performance Analysis of OFDM System Using Non-conventional Transform and Non-conventional Mapping Schemes over Rayleigh Channel
Abstract: ABSTRACT High data rate wireless transmission is required to meet the rapidly increasing demands for mobile communications. Fast Fourier transform (FFT)-OFDM has drawn much attention due to its simple implementation and robustness against frequency-selective fading channels. Recently, the advantages of the discrete cosine transform (DCT)-based OFDM have come to the light. In this paper, performance of the conventional FFT-OFDM system is compared with non-conventional DCT-OFDM in terms of bit error …
Published in Journal of Communication Engineering & Systems · Vol. 2, Issue 1, 2012 · pp. 13–20 Read article