FBMC-OQAM系统在GNU Radio平台的实现

urrently the core tech of the 4th generation mobole communication system-orthogonal frequency division multiplexing(OFDM) requires orthogonality for all subcarriers, However, FBMC requires orthogonality only for the neighbouring sub-channels. And to fully exploit the given frequency bandwidth, modulation between neighbour orthogonality must be obtained. Thus, the offset quadrature amplitude modulation(OQAM)is used to satisfy this purpose. The combination of filter banks with OQAM modulation leads to the maximum bit rate, without needing a guard time or cyclic prefix as in OFDM. This improves the efficiency of time resource greatly. GNU Radio is a free and open-source development kit for SDR. It provides signal processing module to implement SDR. RF hardware which is not expensive can also be used to create SDR applications. GNU Radio itself can serve as a simulator like Matlab as well. This paper summarizes a solution which make fully use of GNU Radio platform to develop SDR in Linux operating system and implements the modulation and demodulation of FBMC-OQAM system.