实现VB界面下的信号fft变换。界面提供两个波形的卷积，然后对其求FFT变换并显示-VB interface to achieve a signal fft transform. Interface convolution of two waveforms, and then seek its FFT transform and display

数字图像处理程序，可将RAW格式转化为BMP格式，并进行线性拉伸，卷积滤波，几何缩放。-Digital image processing procedures, RAW format can be converted into BMP format, and a linear stretching, convolution filtering, geometric scaling.

Title: Convolution Sum. Aim: Write a generalized program to find the linear convolution of two Sequences and verifying the properties of convolution Theory: 1. Explain what is convolution. 2. Write down its derivation. 3. Write d