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- W2019228040 abstract "Limited by the computing speed of FFT (Fast Fourier Transform), Short-data DFT(Discrete Fourier Transform) is often used in radar reconnaissance digital receiver. But for larger N, the number of sample points, is selected, not only windows effect is reduced and frequency resolution is improved, but also export that the frequency domain signal to noise ratio is N times increase of time-domain. So when N is a greater value, using DFT measuring frequency algorithm can detect small signal submerged in the noise. A realization scheme is given based on the big point DFT radar reconnaissance digital receiver, and export the quantitative relationship about sense pulse modulation radar signals. With the development of component technology and improvement of algorithm, long-data DFT has sufficient computing speed now, which provides the probability of its application in digital receiver. Long FFT use generally 2-dimension algorithm and its implementation method on FPGA are also talked about." @default.
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- W2019228040 date "2008-01-01" @default.
- W2019228040 modified "2023-09-23" @default.
- W2019228040 title "Long-data DFT and its application in radar reconnaissance receiver" @default.
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- W2019228040 doi "https://doi.org/10.1109/isape.2008.4735503" @default.
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