摘要
讨论了基于FFT技术的两种快速估计双正弦信号频率算法,分析了它们的原理,给出了用FPGA实现的流程图。最后通过FPGA的硬件时序仿真,验证了频谱重心法的有效性。
Based on FFF technique, two algorithms for the frequency estimation of dual tones are presented. The principles are analyzed, and then the FPGA implement flowcharts of two algorithms are given also. Finally, the timing simulation, the frequency center of gravity implemented by FPGA is given.
