实现了用matlab在频域上求离散序列的循环卷积-Achieved in the frequency domain using matlab seeking discrete sequence of circular convolution

探索卷积的不同的实现方法，而非用matlab中的卷积命令(explore how this can be calculated efficiently using the FFT. This entails understanding the difference between linear and circular convolution. We will explore using the FFT and compare it with a conventional direct im