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While Histograms of Gradients (HOG) has been proven as an excellent feature set for human detection, its intricate computation does not readily lend itself to be realized into high performance and economical hardware. This paper proposes several methods to simplify complicated computations of HOG, so that HOG feature extraction can be speeded up, which is essential in real-time applications, and become...
OFDM-based systems are sensitive to phase distortion. Although the carrier frequency offset (CFO) can be coarsely corrected in time domain, the residual CFO, the sampling frequency offset and other phase noises will still lead to system performance degradation. Therefore, using fine phase tracking in frequency domain is necessary to guarantee the receiver performance. In this paper, an efficient and...
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