【摘要】 在FPGA平台上实现了一种MIMO-OFDM系统的时间同步器。该同步器基于CAZAC序列的相关特性,采用了对接收信号进行量化处理,将复杂的复数相关运算变化成简单的映射,从而降低了运算复杂度和硬件开销。实验结果验证了同步器在实际的硬件环境中的可用性,并且能够在降低运算复杂度和减少硬件开销的情况下,实现较好的同步。更多还原

【Abstract】 A time synchronizer of MIMO- OFDM system is implemented on the FPGA platform. This synchronizer,based on the relevant characteristics of CAZAC sequences,conducts quantization of the received signal,and turns the complicated complex correlation operation into a kind of simple mapping,thus reducing the computational complexity and hardware cost. Experimental results indicate the availability of this synchronizer in the actual hardware environment,and that this synchronizer could achieve better synchronization at a reduced computational complexity and decreased hardware expenditure.更多还原