using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Windows.Forms;

using?System.Threading;

namespace?DesignPattern
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????fft_signal?=?new?short[this.pic_fft.Width?*?2];//將需要計(jì)算的數(shù)字信號(hào)在這里進(jìn)行賦值
????????????GetFftArray（）;
????????}

????????short[]?fft_signal?=?new?short[0];
????????FFT?fft?=?new?FFT（）;
????????double[]?fftary?=?new?double[0];
????????Pen[]?pens?=?new?Pen[]?{?new?Pen（Color.Green）?new?Pen（Color.DarkGreen）?};
????????private?void?GetFftArray（）
????????{
????????????fftary?=?fft.GetFftValueFromChData（fft_signal?this.pic_fft.Width）;//信號(hào)源（fft_signal）的數(shù)據(jù)長(zhǎng)度需要不小于運(yùn)算結(jié)果長(zhǎng)度（pic_fft.width）的兩倍，否則將無(wú)法正常計(jì)算
????????

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----

?????文件??????21429??2018-12-03?12:43??FFT附頻譜圖顯示代碼C#.cs

-----------?---------??----------?-----??----

????????????????21429????????????????????1