Single carrier frequency-division multi-address transmitting, receiving device based on multiple subband wave filter set and method thereof
A single-carrier frequency division and filter bank technology, applied in multi-frequency code systems, modulated carrier systems, digital transmission systems, etc., can solve problems such as rising interference between users, high synchronization accuracy requirements, and affecting overall communication performance. Reduce peak-to-average ratio, improve coverage, and strong robustness
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[0025] Fig. 1 shows a block diagram of a transmitter of a single carrier-frequency division multiple access system implemented based on multi-subband filter banks according to a specific embodiment of the present invention. It includes a serial / parallel conversion device 10, a K-point FFT transform device 11, a subband mapping device 12, a phase shift device 13, an M-point IFFT transform device 14, M up-sampling devices (for brevity) , only three 150, 151 and 152 are shown in Fig. 1), M polyphase filter devices (for simplicity, only three 160, 161 and 162 are shown in Fig. , a waveform synthesis device 18, a waveform truncation device 19 and a cyclic prefix addition device 20.
[0026] It should be noted that the channel coding device, digital modulation device, RF frequency conversion device and a transmitting antenna, which are essential components of the digital communication system transmitter, are not directly related to the purpose of the present invention and are not de...
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